Title: (Investigation) Ratio and Proportion Shadow Activity
Course: HBUHSD Geometry Resource Course > Section: Unit 4: Similarity

Explanation:This investigation is done in groups of 3. You will need tape measures and a sunny day. Students will find the the heights of tall objects around campus by proportioning them their own height and shadow.

Teacher Directions: Facilitate the activity, students are investigation similarity thru the use of proportions.

Student Directions: Get into groups of 3. Measure and record everyone’s height in the group. Make sure all heights are in inches.

When Outside…
Measure each group members shadow and record it. Measure 3 objects’ SHADOWS in inches. You must have 2 tall objects and 1 small object. (example: tree. Flag pole, fire hydrant, trash can …). Record shadow lengths.
Back inside-
Each person will need a piece of paper with their name on it. On the paper, each person will use their own height and own shadow to create a ratio. Students will write a paragraph detailing their observations.

Ratio and Proportion Shadow Project (1).docx

Student time: appox. 45 minutes to 1 hour.