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Bar Models<br />
B<br />
Harold starts to make a bar model<br />
of a rectangular prism. When he is<br />
halfway, it looks like this:<br />
2. On Student Activity Sheet 3, finish the bar model of Harold’s<br />
rectangular prism by drawing the missing edges <strong>and</strong> vertices.<br />
Tonya used a net to build this pyramid<br />
with a square base. Here is a drawing<br />
of her pyramid.<br />
3. a. How many faces are in Tonya’s<br />
pyramid?<br />
b. Use Student Activity Sheet 3 to<br />
change Tonya’s drawing into a<br />
bar model, showing all the edges<br />
<strong>and</strong> vertices.<br />
c. Use the second drawing on Student Activity Sheet 3 to make<br />
a bar model of a different pyramid. What is the special name<br />
for this pyramid?<br />
Here is Lance’s drawing of his prism.<br />
Only three faces are visible.<br />
4. a. How many faces are hidden?<br />
b. How many faces are rectangles?<br />
c. How many edges are hidden?<br />
d. How many vertices are hidden?<br />
e. Use Student Activity Sheet 3 to<br />
change Lance’s drawing into a<br />
bar model of the prism.<br />
Section B: Bar Models 15
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