Best Buys, Ratios, and Rates: Addition and Subtraction of Fractions (Contexts for Learning Mathematics, Grades 4-6: Investigating Fractions, Decimals, and Percents)
By Unknown Author.
Description
Best Buys, Ratios, and Rates: Addition and Subtraction of Fractions is one of five units in the Contexts for Learning Mathematics' Investigating Fractions, Decimals, and Percents (4 - 6) The focus of this unit is the development of equivalence of fractions, proportional reasoning, and rates. It begins with a comparison of the cost of cat food at two stores: Bob's Best Buys where it is on sale, $15 for 12 cans, and Maria's Pet Emporium where it is on sale, $23 for 20 cans. Several important ideas and representations develop as students explore this problem, among ...
ISBN(s)
0325010269, 9780325010267
