diff --git a/source/linear-algebra/source/01-LE/01.ptx b/source/linear-algebra/source/01-LE/01.ptx
index a2c54d722..9b0099eed 100644
--- a/source/linear-algebra/source/01-LE/01.ptx
+++ b/source/linear-algebra/source/01-LE/01.ptx
@@ -508,7 +508,7 @@ system). Otherwise it is <term>inconsistent</term>.<idx><h>inconsistent linear s
 
     <figure xml:id="figure-intersecting-planes-one">
         <caption>Intersection of three planes at one point</caption>
-        <image xml:id="LE1-image-intersection-planes-one" width="50%" component="print">
+        <image xml:id="LE1-image-intersection-planes-one-print" width="50%" component="print">
             <sageplot variant="3d" aspect="1.0">
 <xi:include href="./sage/LE1-image-intersection-planes-one.sage" parse="text"/>
             </sageplot>
@@ -516,7 +516,7 @@ system). Otherwise it is <term>inconsistent</term>.<idx><h>inconsistent linear s
                 <p>Three planes are shown to intersect at a single point. An arrow points to the point of intersection at coordinates <m>(1,2,3)</m>.</p>
             </description>
         </image>
-        <image xml:id="LE1-image-intersection-planes-one" component="html">
+        <image xml:id="LE1-image-intersection-planes-one-html" component="html">
             <sageplot variant="3d" aspect="1.0">
 <xi:include href="./sage/LE1-image-intersection-planes-one.sage" parse="text"/>
             </sageplot>
@@ -528,7 +528,7 @@ system). Otherwise it is <term>inconsistent</term>.<idx><h>inconsistent linear s
 
     <figure xml:id="figure-intersecting-planes-inf">
         <caption>Intersection of three planes at a line</caption>
-        <image xml:id="LE1-image-intersection-planes-inf" width="50%" component="print">
+        <image xml:id="LE1-image-intersection-planes-inf-print" width="50%" component="print">
             <sageplot variant="3d" aspect="1.0">
 <xi:include href="./sage/LE1-image-intersection-planes-inf.sage" parse="text"/>
             </sageplot>
@@ -536,7 +536,7 @@ system). Otherwise it is <term>inconsistent</term>.<idx><h>inconsistent linear s
                 <p>Three planes are shown to intersect along a line of points.</p>
             </description>
         </image>
-        <image xml:id="LE1-image-intersection-planes-inf" component="html">
+        <image xml:id="LE1-image-intersection-planes-inf-html" component="html">
             <sageplot variant="3d" aspect="1.0">
 <xi:include href="./sage/LE1-image-intersection-planes-inf.sage" parse="text"/>
             </sageplot>
@@ -548,7 +548,7 @@ system). Otherwise it is <term>inconsistent</term>.<idx><h>inconsistent linear s
 
     <figure xml:id="figure-intersecting-planes-zero">
         <caption>Three non-mutually-intersecting planes</caption>
-        <image xml:id="LE1-image-intersection-planes-zero" width="50%" component="print">
+        <image xml:id="LE1-image-intersection-planes-zero-print" width="50%" component="print">
             <sageplot variant="3d" aspect="1.0">
 <xi:include href="./sage/LE1-image-intersection-planes-zero.sage" parse="text"/>
             </sageplot>
@@ -556,7 +556,7 @@ system). Otherwise it is <term>inconsistent</term>.<idx><h>inconsistent linear s
                 <p>Three planes are shown to intersect at no common point, although each pair of planes intersects along a line of points.</p>
             </description>
         </image>
-        <image xml:id="LE1-image-intersection-planes-zero" component="html">
+        <image xml:id="LE1-image-intersection-planes-zero-html" component="html">
             <sageplot variant="3d" aspect="1.0">
 <xi:include href="./sage/LE1-image-intersection-planes-zero.sage" parse="text"/>
             </sageplot>
diff --git a/source/linear-algebra/source/02-EV/01.ptx b/source/linear-algebra/source/02-EV/01.ptx
index e09a7399a..c5ab6ec6a 100644
--- a/source/linear-algebra/source/02-EV/01.ptx
+++ b/source/linear-algebra/source/02-EV/01.ptx
@@ -221,27 +221,26 @@ we refer to this real number as a <term>scalar</term>.
       </p>
   </task>
   <task>
-      <p component="html">
-    Correct the SageMath code cell below to generate
-    an illustration of several vectors belonging to
-    <me>\vspan\left\{\left[\begin{array}{c}1\\2\end{array}\right],
-     \left[\begin{array}{c}-1\\1\end{array}\right]\right\}=
-     \setBuilder{a\left[\begin{array}{c}1\\2\end{array}\right]+
-     b\left[\begin{array}{c}-1\\1\end{array}\right]}{a, b \in \IR}</me>
-    in the <m>xy</m> plane.
-    </p>
-    <sage component="html">
-      <input>
-<xi:include href="./code/ev1-planar-span.sage" parse="text" />
-      </input>
-    </sage>
-    <p component="html">
-    Based on this illustration, which of these geometrical objects
-    best describes the span of these two vectors?
+    <p>
+      In addition to the combinations above, use the interactive below to graph an additional
+      5 or more vectors belonging to 
+      <me>\vspan\left\{\left[\begin{array}{c}1\\2\end{array}\right],
+      \left[\begin{array}{c}-1\\1\end{array}\right]\right\}=
+      \setBuilder{a\left[\begin{array}{c}1\\2\end{array}\right]+
+      b\left[\begin{array}{c}-1\\1\end{array}\right]}{a, b \in \IR}</me>
+      in the <m>xy</m> plane.
     </p>
-    <p component="print">
-    Which of these geometrical objects
-    best describes the span of these two vectors?
+    <interactive label="EV1-interactive-span" platform="doenetml" width="100%">
+        <slate surface="doenetml">
+          <xi:include parse="text" href="doenet/EV1-span-two-vectors.xml"/>
+        </slate>
+        <description>
+          <p>An interactive that graphs linear combinations of the vectors <m>\left[\begin{array}{c}1\\2\end{array}\right]</m> and 
+            <m> \left[\begin{array}{c}-1\\1\end{array}\right]</m>.</p>
+        </description>
+    </interactive>
+    <p>
+      Which of these geometrical objects best describes the span of these two vectors?
     </p>
     <ol marker="A." cols="4">
       <li>A line</li>
diff --git a/source/linear-algebra/source/02-EV/doenet/EV1-span-two-vectors.xml b/source/linear-algebra/source/02-EV/doenet/EV1-span-two-vectors.xml
new file mode 100644
index 000000000..cfaf9f54e
--- /dev/null
+++ b/source/linear-algebra/source/02-EV/doenet/EV1-span-two-vectors.xml
@@ -0,0 +1,59 @@
+<p>
+  Enter several pairs of coefficients <m>(a,b)</m>, separated by commas:
+  <mathInput name="in" minwidth="500" prefill="(1,1),(-2,1),(-1,-2)" />
+</p>
+
+<setup>
+  <math name="v"> (1,2)</math>
+  <math name="w"> (-1,1)</math>
+  <mathList name="l">$in</mathList>
+  <sampleRandomNumbers numSamples="10" from="-6" to="6" name="a" asList="true"/>
+  <sampleRandomNumbers numSamples="10" from="-6" to="6" name="b" asList="true"/>
+</setup>
+
+<triggerSet>
+  <!--<callAction actionName="deleteChildren" target="$g" number="1000"/>-->
+  <callAction actionName="addChildren" target="$g">
+    <vector draggable="false" styleNumber="1" head="$v" />
+    <label anchor="$v" positionFromAnchor="right">
+      <m>\left[\begin{array}{c} $v.x \\ $v.y\end{array}\right]</m>
+    </label>
+    <vector draggable="false" styleNumber="2" head="$w" />
+    <label anchor="$w" positionFromAnchor="left">
+      <m>\left[\begin{array}{c} $w.x \\ $w.y\end{array}\right]</m>
+    </label>
+    <repeat for="$l" valueName="c">
+      <vector draggable="false" styleNumber="3" head="$c.x*$v+$c.y*$w"/>
+    </repeat>
+  </callAction>
+
+    <label>Plot the above linear combinations</label>
+</triggerSet>
+
+<callAction actionName="deleteChildren" target="$g" number="1000"><label>Reset plot</label></callAction>
+
+<triggerSet>
+  <label>Add 10 random linear combinations</label>
+
+  <callAction target="$a" actionName="resample"/>
+  <callAction target="$b" actionName="resample"/>
+  <callAction actionName="addChildren" target="$g">
+    <repeatForSequence from="0" to="10" step="1" valueName="i">
+       <vector draggable="false" styleNumber="4" head="$a[$i]*$v+$b[$i]*$w"/>
+    </repeatForSequence>
+  </callAction>
+</triggerSet>
+
+<graph name="g" xmin="-10" ymin="-10" xmax="10" ymax="10">
+  <description>Graph of two vectors and linear combinations thereof</description>
+
+    <vector draggable="false" styleNumber="1" head="$v" />
+    <label anchor="$v" positionFromAnchor="right">
+      <m>\left[\begin{array}{c} $v.x \\ $v.y\end{array}\right]</m>
+    </label>
+    <vector draggable="false" styleNumber="2" head="$w" />
+    <label anchor="$w" positionFromAnchor="left">
+      <m>\left[\begin{array}{c} $w.x \\ $w.y\end{array}\right]</m>
+    </label> 
+
+</graph>