Objective: Students will use the concepts of ratio, proportions, and similarity as relates to measurements of the human body. Students will be collecting data on classmates’ body measurements. These measurements will be organized in tables, charts, and graphs. Ratios will be calculated for comparing body measurements, i.e. height of head: height of body. Purpose: this study is to determine if there are consistent ratios or proportions in the human body as evidenced by sampling.