# Data Analysis and Proportional Reasoning (Grades 6-8)

Led by Michele Carney (Boise State University) and Cathy Sorger (Boise School District)

*Special thanks to the Idaho State Department of Education for funding this project.*

## 1. Cookies and Cost

Students investigate the relationship between the costs of cookies and the number of cookies, as well as the ratios needed to mix different colors of paint.

## 2. Picture Frames

Students investigate the different representations they can use to model proportional relationships, as well as the scalar and functional relationships that exist in proportional situations.

## 3. Sit and Reach - Part 1

Students analyze the statistical question, “About how far can an average 6th grader sit and reach?”

## 4. Sit and Reach - Part 2

Students compare the sit-and-reach data collected from a sample of 7th grade students and a sample of teachers.