Students had several application problems earlier in the week dealing with indirect measurement. When one object's height is known, shadows can be used to indirectly measure the height of another object. When shadows aren't available or practical to use, a mirror can be placed between the objects (typically between an object and a person) to find height.
On Wednesday/Thursday students will perform a similar activity in class. Working with a partner, one person will stand 7 feet from a mirror placed on the floor and the group must figure out how for the second person must stand from the mirror so that they can see each other's reflection when they look at the mirror. Students will use similar triangles and proportions to solve the problem.
Students' assignment is this in class activity, and there will be no "homework over the 4-day weekend. Students should continue to work in Cognitive Tutor. A goal would be to come back on Tuesday and at least be in section 3-1.
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