This 10-question scavenger hunt activity, created for middle school students, covers missing side lengths of similar 2D and 3D figures, scale models, scale drawings, and indirect measurement. The full product can be seen in the preview. A key, student answer sheet, and instructions are included.
Scavenger hunts require very little prep work, and the kids really enjoy them. Just print the ten poster cards and hang them in random order around the classroom. (I enjoy printing them in color on cardstock and laminating for durability, but this isn't necessary. The posters print just fine in black and white on standard copy paper.) Print an answer sheet for each student. Assign a starting poster card to each student or small group. The answer to that question, if correct, will lead students to the next question.
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8.9B (Use proportional relationships in similar two-dimensional figures or similar three-dimensional figures to find missing measurements.)
8.3B (Estimate and find solutions to application problems involving percents and other proportional relationships such as similarity and rates.)
8.7B (Use geometric concepts and properties to solve problems in fields such as art and architecture.)