diff --git a/01-intro-raster-data.html b/01-intro-raster-data.html
index e773a1f2..07dc3b35 100644
--- a/01-intro-raster-data.html
+++ b/01-intro-raster-data.html
@@ -425,7 +425,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>Raster data has some important advantages:</p>
 <ul><li>representation of continuous surfaces</li>
@@ -474,7 +474,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>The lines and polygon objects have the same extent. The extent for
 the points object is smaller in the vertical direction than the other
@@ -645,7 +645,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "identifier": "https://carpentries-incubator.github.io/geospatial-python/01-intro-raster-data.html",
   "dateCreated": "2023-11-09",
   "dateModified": "2023-08-14",
-  "datePublished": "2023-12-05"
+  "datePublished": "2023-12-12"
 }
 
   </script><script>
diff --git a/02-intro-vector-data.html b/02-intro-vector-data.html
index 3b717a99..168fb308 100644
--- a/02-intro-vector-data.html
+++ b/02-intro-vector-data.html
@@ -406,7 +406,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>State boundaries are polygons. The Fisher Tower location is a point.
 There are no line features shown.</p>
@@ -588,7 +588,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "identifier": "https://carpentries-incubator.github.io/geospatial-python/02-intro-vector-data.html",
   "dateCreated": "2023-11-09",
   "dateModified": "2023-08-14",
-  "datePublished": "2023-12-05"
+  "datePublished": "2023-12-12"
 }
 
   </script><script>
diff --git a/03-crs.html b/03-crs.html
index 61b5f548..970310db 100644
--- a/03-crs.html
+++ b/03-crs.html
@@ -546,7 +546,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <ul><li>Projection is UTM, zone 18, datum is WGS84, ellipsoid is WGS84.</li>
 <li>The data is in meters.</li>
@@ -682,7 +682,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "identifier": "https://carpentries-incubator.github.io/geospatial-python/03-crs.html",
   "dateCreated": "2023-11-09",
   "dateModified": "2023-08-14",
-  "datePublished": "2023-12-05"
+  "datePublished": "2023-12-12"
 }
 
   </script><script>
diff --git a/04-geo-landscape.html b/04-geo-landscape.html
index d64e1166..2a100f5c 100644
--- a/04-geo-landscape.html
+++ b/04-geo-landscape.html
@@ -671,7 +671,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "identifier": "https://carpentries-incubator.github.io/geospatial-python/04-geo-landscape.html",
   "dateCreated": "2023-11-09",
   "dateModified": "2023-08-14",
-  "datePublished": "2023-12-05"
+  "datePublished": "2023-12-12"
 }
 
   </script><script>
diff --git a/05-access-data.html b/05-access-data.html
index 9ef7f70c..5fdca266 100644
--- a/05-access-data.html
+++ b/05-access-data.html
@@ -999,7 +999,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "identifier": "https://carpentries-incubator.github.io/geospatial-python/05-access-data.html",
   "dateCreated": "2023-11-09",
   "dateModified": "2023-08-29",
-  "datePublished": "2023-12-05"
+  "datePublished": "2023-12-12"
 }
 
   </script><script>
diff --git a/06-raster-intro.html b/06-raster-intro.html
index be3646f3..27e90423 100644
--- a/06-raster-intro.html
+++ b/06-raster-intro.html
@@ -700,7 +700,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p><code>crs.axis_info</code> tells us that the CRS for our raster has
 two axis and both are in meters. We could also get this information from
@@ -1005,7 +1005,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>Since we know the height/width ratio is 1:1 (check the
 <code>rio.height</code> and <code>rio.width</code> attributes), we can
@@ -1108,7 +1108,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "identifier": "https://carpentries-incubator.github.io/geospatial-python/06-raster-intro.html",
   "dateCreated": "2023-11-09",
   "dateModified": "2023-08-23",
-  "datePublished": "2023-12-05"
+  "datePublished": "2023-12-12"
 }
 
   </script><script>
diff --git a/07-vector-data-in-python.html b/07-vector-data-in-python.html
index eb77ef8a..a25a76c8 100644
--- a/07-vector-data-in-python.html
+++ b/07-vector-data-in-python.html
@@ -726,7 +726,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb22">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -811,7 +811,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>By plotting out the vector file, we can tell that the latitude and
 longitude of the file are flipped.</p>
@@ -1014,7 +1014,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "identifier": "https://carpentries-incubator.github.io/geospatial-python/07-vector-data-in-python.html",
   "dateCreated": "2023-11-09",
   "dateModified": "2023-08-14",
-  "datePublished": "2023-12-05"
+  "datePublished": "2023-12-12"
 }
 
   </script><script>
diff --git a/08-crop-raster-data.html b/08-crop-raster-data.html
index a25da1cb..194a8c6f 100644
--- a/08-crop-raster-data.html
+++ b/08-crop-raster-data.html
@@ -566,7 +566,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb15">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -757,7 +757,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "identifier": "https://carpentries-incubator.github.io/geospatial-python/08-crop-raster-data.html",
   "dateCreated": "2023-11-09",
   "dateModified": "2023-08-14",
-  "datePublished": "2023-12-05"
+  "datePublished": "2023-12-12"
 }
 
   </script><script>
diff --git a/09-raster-calculations.html b/09-raster-calculations.html
index c0dfc10e..06f62191 100644
--- a/09-raster-calculations.html
+++ b/09-raster-calculations.html
@@ -583,7 +583,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>Recall, if there were nodata values in our raster, we would need to
 filter them out with <code>.where()</code>. Since we have loaded the
@@ -757,7 +757,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>We crop the area of interest using <code>clip_box</code>:</li>
 </ol><div class="codewrapper sourceCode" id="cb23">
@@ -876,7 +876,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "identifier": "https://carpentries-incubator.github.io/geospatial-python/09-raster-calculations.html",
   "dateCreated": "2023-11-09",
   "dateModified": "2023-08-14",
-  "datePublished": "2023-12-05"
+  "datePublished": "2023-12-12"
 }
 
   </script><script>
diff --git a/10-zonal-statistics.html b/10-zonal-statistics.html
index 7be44162..92915dab 100644
--- a/10-zonal-statistics.html
+++ b/10-zonal-statistics.html
@@ -672,7 +672,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "identifier": "https://carpentries-incubator.github.io/geospatial-python/10-zonal-statistics.html",
   "dateCreated": "2023-11-09",
   "dateModified": "2023-08-14",
-  "datePublished": "2023-12-05"
+  "datePublished": "2023-12-12"
 }
 
   </script><script>
diff --git a/11-parallel-raster-computations.html b/11-parallel-raster-computations.html
index 53b96b71..681a2d99 100644
--- a/11-parallel-raster-computations.html
+++ b/11-parallel-raster-computations.html
@@ -607,7 +607,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb13">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -854,7 +854,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "identifier": "https://carpentries-incubator.github.io/geospatial-python/11-parallel-raster-computations.html",
   "dateCreated": "2023-11-09",
   "dateModified": "2023-08-14",
-  "datePublished": "2023-12-05"
+  "datePublished": "2023-12-12"
 }
 
   </script><script>
diff --git a/404.html b/404.html
index 1a0a5c64..e17ad2b8 100644
--- a/404.html
+++ b/404.html
@@ -373,8 +373,8 @@ <h1>Page not found</h1>
   "url": "https://carpentries-incubator.github.io/geospatial-python/404.html",
   "identifier": "https://carpentries-incubator.github.io/geospatial-python/404.html",
   "dateCreated": "2023-11-09",
-  "dateModified": "2023-12-05",
-  "datePublished": "2023-12-05"
+  "dateModified": "2023-12-12",
+  "datePublished": "2023-12-12"
 }
 
   </script><script>
diff --git a/CODE_OF_CONDUCT.html b/CODE_OF_CONDUCT.html
index fc863c35..25364188 100644
--- a/CODE_OF_CONDUCT.html
+++ b/CODE_OF_CONDUCT.html
@@ -385,7 +385,7 @@ <h1>Contributor Code of Conduct</h1>
   "identifier": "https://carpentries-incubator.github.io/geospatial-python/CODE_OF_CONDUCT.html",
   "dateCreated": "2023-11-09",
   "dateModified": "2023-08-14",
-  "datePublished": "2023-12-05"
+  "datePublished": "2023-12-12"
 }
 
   </script><script>
diff --git a/LICENSE.html b/LICENSE.html
index 06e85c1a..f2162ece 100644
--- a/LICENSE.html
+++ b/LICENSE.html
@@ -436,7 +436,7 @@ <h1>Licenses</h1>
   "identifier": "https://carpentries-incubator.github.io/geospatial-python/LICENSE.html",
   "dateCreated": "2023-11-09",
   "dateModified": "2023-08-14",
-  "datePublished": "2023-12-05"
+  "datePublished": "2023-12-12"
 }
 
   </script><script>
diff --git a/aio.html b/aio.html
index d0b791a5..97742a52 100644
--- a/aio.html
+++ b/aio.html
@@ -482,7 +482,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <p>Raster data has some important advantages:</p>
 <ul>
@@ -537,7 +537,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>The lines and polygon objects have the same extent. The extent for
 the points object is smaller in the vertical direction than the other
@@ -756,7 +756,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>State boundaries are polygons. The Fisher Tower location is a point.
 There are no line features shown.</p>
@@ -1138,7 +1138,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <ul>
 <li>Projection is UTM, zone 18, datum is WGS84, ellipsoid is WGS84.</li>
@@ -2612,7 +2612,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p><code>crs.axis_info</code> tells us that the CRS for our raster has
 two axis and both are in meters. We could also get this information from
@@ -2924,7 +2924,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>Since we know the height/width ratio is 1:1 (check the
 <code>rio.height</code> and <code>rio.width</code> attributes), we can
@@ -3390,7 +3390,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb22">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -3478,7 +3478,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>By plotting out the vector file, we can tell that the latitude and
 longitude of the file are flipped.</p>
@@ -3881,7 +3881,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb15">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -4294,7 +4294,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>Recall, if there were nodata values in our raster, we would need to
@@ -4480,7 +4480,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>We crop the area of interest using <code>clip_box</code>:</li>
@@ -5163,7 +5163,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <div class="codewrapper sourceCode" id="cb13">
 <h3 class="code-label">PYTHON<i aria-hidden="true" data-feather="chevron-left"></i><i aria-hidden="true" data-feather="chevron-right"></i>
@@ -5402,8 +5402,8 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
   "url": "https://carpentries-incubator.github.io/geospatial-python/aio.html",
   "identifier": "https://carpentries-incubator.github.io/geospatial-python/aio.html",
   "dateCreated": "2023-11-09",
-  "dateModified": "2023-12-05",
-  "datePublished": "2023-12-05"
+  "dateModified": "2023-12-12",
+  "datePublished": "2023-12-12"
 }
 
   </script><script>
diff --git a/images.html b/images.html
index b03fa1aa..7956992c 100644
--- a/images.html
+++ b/images.html
@@ -604,8 +604,8 @@ <h3 id="11-parallel-raster-computations-figure-4">Figure 4</h3>
   "url": "https://carpentries-incubator.github.io/geospatial-python/images.html",
   "identifier": "https://carpentries-incubator.github.io/geospatial-python/images.html",
   "dateCreated": "2023-11-09",
-  "dateModified": "2023-12-05",
-  "datePublished": "2023-12-05"
+  "dateModified": "2023-12-12",
+  "datePublished": "2023-12-12"
 }
 
   </script><script>
diff --git a/index.html b/index.html
index 391d29fe..8333eacc 100644
--- a/index.html
+++ b/index.html
@@ -658,8 +658,8 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
   "url": "https://carpentries-incubator.github.io/geospatial-python/index.html",
   "identifier": "https://carpentries-incubator.github.io/geospatial-python/index.html",
   "dateCreated": "2023-11-09",
-  "dateModified": "2023-12-05",
-  "datePublished": "2023-12-05"
+  "dateModified": "2023-12-12",
+  "datePublished": "2023-12-12"
 }
 
   </script><script>
diff --git a/instructor-notes.html b/instructor-notes.html
index a89ffb1b..71fa151a 100644
--- a/instructor-notes.html
+++ b/instructor-notes.html
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   </h4>
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 <p>The lines and polygon objects have the same extent. The extent for
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diff --git a/instructor/02-intro-vector-data.html b/instructor/02-intro-vector-data.html
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 <div class="accordion-body">
 <p>State boundaries are polygons. The Fisher Tower location is a point.
 There are no line features shown.</p>
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diff --git a/instructor/03-crs.html b/instructor/03-crs.html
index 3c4a3f14..0a993fdc 100644
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   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
 <div class="accordion-body">
 <ul><li>Projection is UTM, zone 18, datum is WGS84, ellipsoid is WGS84.</li>
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@@ -683,7 +683,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
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diff --git a/instructor/04-geo-landscape.html b/instructor/04-geo-landscape.html
index b63dadec..592bcf82 100644
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diff --git a/instructor/05-access-data.html b/instructor/05-access-data.html
index 18b46504..3c901cd8 100644
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   "dateCreated": "2023-11-09",
   "dateModified": "2023-08-29",
-  "datePublished": "2023-12-05"
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diff --git a/instructor/06-raster-intro.html b/instructor/06-raster-intro.html
index 7ed10307..bf942583 100644
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   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p><code>crs.axis_info</code> tells us that the CRS for our raster has
 two axis and both are in meters. We could also get this information from
@@ -1006,7 +1006,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>Since we know the height/width ratio is 1:1 (check the
 <code>rio.height</code> and <code>rio.width</code> attributes), we can
@@ -1109,7 +1109,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
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index e72dbd9a..3a6cea7b 100644
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   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
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   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>By plotting out the vector file, we can tell that the latitude and
 longitude of the file are flipped.</p>
@@ -1015,7 +1015,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
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diff --git a/instructor/08-crop-raster-data.html b/instructor/08-crop-raster-data.html
index 5603d220..e238e3e2 100644
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   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
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@@ -758,7 +758,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
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diff --git a/instructor/09-raster-calculations.html b/instructor/09-raster-calculations.html
index cb531182..346f4bda 100644
--- a/instructor/09-raster-calculations.html
+++ b/instructor/09-raster-calculations.html
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   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>Recall, if there were nodata values in our raster, we would need to
 filter them out with <code>.where()</code>. Since we have loaded the
@@ -758,7 +758,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <ol style="list-style-type: decimal"><li>We crop the area of interest using <code>clip_box</code>:</li>
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@@ -877,7 +877,7 @@ <h3 class="callout-title">Keypoints<a class="anchor" aria-label="anchor" href="#
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index 90f59e20..5757a384 100644
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diff --git a/instructor/11-parallel-raster-computations.html b/instructor/11-parallel-raster-computations.html
index 1782bb9e..2fd65d01 100644
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index 8aa402d2..761a4803 100644
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   "dateCreated": "2023-11-09",
   "dateModified": "2023-08-14",
-  "datePublished": "2023-12-05"
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index 75bde3ea..4b79c712 100644
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diff --git a/instructor/aio.html b/instructor/aio.html
index a7345934..0f1d407c 100644
--- a/instructor/aio.html
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-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
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 <div class="accordion-body">
 <p>Raster data has some important advantages:</p>
 <ul>
@@ -538,7 +538,7 @@ <h4 class="accordion-header" id="headingSolution2">
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   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
 <div class="accordion-body">
 <p>The lines and polygon objects have the same extent. The extent for
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@@ -758,7 +758,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
+<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
 <div class="accordion-body">
 <p>State boundaries are polygons. The Fisher Tower location is a point.
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@@ -1141,7 +1141,7 @@ <h4 class="accordion-header" id="headingSolution1">
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   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" data-bs-parent="#accordionSolution1" aria-labelledby="headingSolution1">
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 <div class="accordion-body">
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 <li>Projection is UTM, zone 18, datum is WGS84, ellipsoid is WGS84.</li>
@@ -2618,7 +2618,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
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 <div class="accordion-body">
 <p><code>crs.axis_info</code> tells us that the CRS for our raster has
 two axis and both are in meters. We could also get this information from
@@ -2930,7 +2930,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>Since we know the height/width ratio is 1:1 (check the
 <code>rio.height</code> and <code>rio.width</code> attributes), we can
@@ -3397,7 +3397,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
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@@ -3485,7 +3485,7 @@ <h4 class="accordion-header" id="headingSolution2">
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   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <p>By plotting out the vector file, we can tell that the latitude and
 longitude of the file are flipped.</p>
@@ -3889,7 +3889,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
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 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
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 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>Recall, if there were nodata values in our raster, we would need to
@@ -4489,7 +4489,7 @@ <h4 class="accordion-header" id="headingSolution2">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution2" class="accordion-collapse collapse" aria-labelledby="headingSolution2" data-bs-parent="#accordionSolution2">
+<div id="collapseSolution2" class="accordion-collapse collapse" data-bs-parent="#accordionSolution2" aria-labelledby="headingSolution2">
 <div class="accordion-body">
 <ol style="list-style-type: decimal">
 <li>We crop the area of interest using <code>clip_box</code>:</li>
@@ -5174,7 +5174,7 @@ <h4 class="accordion-header" id="headingSolution1">
   Show me the solution
   </h4>
 </button>
-<div id="collapseSolution1" class="accordion-collapse collapse" aria-labelledby="headingSolution1" data-bs-parent="#accordionSolution1">
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   "dateCreated": "2023-11-09",
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diff --git a/instructor/images.html b/instructor/images.html
index c8355245..10a19b7b 100644
--- a/instructor/images.html
+++ b/instructor/images.html
@@ -604,8 +604,8 @@ <h3 id="11-parallel-raster-computations-figure-4">Figure 4</h3>
   "url": "https://carpentries-incubator.github.io/geospatial-python/instructor/images.html",
   "identifier": "https://carpentries-incubator.github.io/geospatial-python/instructor/images.html",
   "dateCreated": "2023-11-09",
-  "dateModified": "2023-12-05",
-  "datePublished": "2023-12-05"
+  "dateModified": "2023-12-12",
+  "datePublished": "2023-12-12"
 }
 
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diff --git a/instructor/index.html b/instructor/index.html
index 365cf2e4..5dd55256 100644
--- a/instructor/index.html
+++ b/instructor/index.html
@@ -781,8 +781,8 @@ <h3 class="code-label">BASH<i aria-hidden="true" data-feather="chevron-left"></i
   "url": "https://carpentries-incubator.github.io/geospatial-python/instructor/index.html",
   "identifier": "https://carpentries-incubator.github.io/geospatial-python/instructor/index.html",
   "dateCreated": "2023-11-09",
-  "dateModified": "2023-12-05",
-  "datePublished": "2023-12-05"
+  "dateModified": "2023-12-12",
+  "datePublished": "2023-12-12"
 }
 
   </script><script>
diff --git a/instructor/instructor-notes.html b/instructor/instructor-notes.html
index 95870d1e..61df309c 100644
--- a/instructor/instructor-notes.html
+++ b/instructor/instructor-notes.html
@@ -494,8 +494,8 @@ <h3 id="episode-5">Episode 5<a class="anchor" aria-label="anchor" href="#episode
   "url": "https://carpentries-incubator.github.io/geospatial-python/instructor/instructor-notes.html",
   "identifier": "https://carpentries-incubator.github.io/geospatial-python/instructor/instructor-notes.html",
   "dateCreated": "2023-11-09",
-  "dateModified": "2023-12-05",
-  "datePublished": "2023-12-05"
+  "dateModified": "2023-12-12",
+  "datePublished": "2023-12-12"
 }
 
   </script><script>
diff --git a/instructor/key-points.html b/instructor/key-points.html
index 1df01157..45ee6b5e 100644
--- a/instructor/key-points.html
+++ b/instructor/key-points.html
@@ -511,8 +511,8 @@ <h2 class="accordion-header" id="flush-headingTwelve">
   "url": "https://carpentries-incubator.github.io/geospatial-python/instructor/key-points.html",
   "identifier": "https://carpentries-incubator.github.io/geospatial-python/instructor/key-points.html",
   "dateCreated": "2023-11-09",
-  "dateModified": "2023-12-05",
-  "datePublished": "2023-12-05"
+  "dateModified": "2023-12-12",
+  "datePublished": "2023-12-12"
 }
 
   </script><script>
diff --git a/instructor/profiles.html b/instructor/profiles.html
index 04564a5e..d32d0eb6 100644
--- a/instructor/profiles.html
+++ b/instructor/profiles.html
@@ -343,8 +343,8 @@ <h1>Learner Profiles</h1>
   "url": "https://carpentries-incubator.github.io/geospatial-python/instructor/profiles.html",
   "identifier": "https://carpentries-incubator.github.io/geospatial-python/instructor/profiles.html",
   "dateCreated": "2023-11-09",
-  "dateModified": "2023-12-05",
-  "datePublished": "2023-12-05"
+  "dateModified": "2023-12-12",
+  "datePublished": "2023-12-12"
 }
 
   </script><script>
diff --git a/key-points.html b/key-points.html
index f3d10800..64fa9430 100644
--- a/key-points.html
+++ b/key-points.html
@@ -511,8 +511,8 @@ <h2 class="accordion-header" id="flush-headingTwelve">
   "url": "https://carpentries-incubator.github.io/geospatial-python/key-points.html",
   "identifier": "https://carpentries-incubator.github.io/geospatial-python/key-points.html",
   "dateCreated": "2023-11-09",
-  "dateModified": "2023-12-05",
-  "datePublished": "2023-12-05"
+  "dateModified": "2023-12-12",
+  "datePublished": "2023-12-12"
 }
 
   </script><script>
diff --git a/pkgdown.yml b/pkgdown.yml
index 281cece4..29899d24 100644
--- a/pkgdown.yml
+++ b/pkgdown.yml
@@ -2,5 +2,5 @@ pandoc: 2.19.2
 pkgdown: 2.0.7
 pkgdown_sha: ~
 articles: {}
-last_built: 2023-12-05T00:45Z
+last_built: 2023-12-12T00:46Z
 
diff --git a/profiles.html b/profiles.html
index 9825c0d5..b457dd68 100644
--- a/profiles.html
+++ b/profiles.html
@@ -344,8 +344,8 @@ <h1>Learner Profiles</h1>
   "url": "https://carpentries-incubator.github.io/geospatial-python/profiles.html",
   "identifier": "https://carpentries-incubator.github.io/geospatial-python/profiles.html",
   "dateCreated": "2023-11-09",
-  "dateModified": "2023-12-05",
-  "datePublished": "2023-12-05"
+  "dateModified": "2023-12-12",
+  "datePublished": "2023-12-12"
 }
 
   </script><script>