Chapter 11 Patterns Leading to Division

11.1	Integer Division
11.2	The Rate Model for Division
11.3	Division of Fractions
11.4	Division with Negative Numbers
11.5	The Ratio Comparison Model for Division
11.6	Proportions It's Pizza Time - comparing areas of circles
11.7	The Means-Extremes Property Shoe Size vs. Height This activity is related to the Giant of Man photo on page 624, problem 23.
11.8	Proprtions in Similar figures Sketchpad activity This is a followup to activity 9.2.
11.9	Proportional Thinking
Projects	Project 2: Best Buys - Go to the online grocery store (below) and find examples of at least 5 foods that are packaged in different sizes. Calculate the unit cost for each size to determine best buys. Write up what you find and answer whether it is true that bigger packages are more economical. Visit http://www.peapod.com to do your comparison shopping.   Here's a related activity. (Use Peapod as your online grocer.) Internet Shopping Activity

CIESEMath, a middle school mathematics & technology teacher training project, is a joint effort between the Center for Innovation in Engineering and Science Education (CIESE) at Stevens Institute of Technology in Hoboken, New Jersey and the Elizabeth, New Jersey Public Schools.