Teaching

Note: Unless otherwise specified, all problems are to be turned in.

Homework 14:
Read 6.1
Check out "Virtual manipulative": Go to nlvm.usu.edu, click on Virtual Library, then on the grid section in the "Number and Operation" row and the "6-8" column; finally scroll down and click on "Fractions Rectangle Multiplication."
1. 6.1 Problems (p. 225-6) 3 c,d, 5
2. A field has area 3 yds by 8 yds. Find the area of the field in square feet and describe two ways to solve the problem. For each, make sure to explicitly say how the meaning of multiplication is used in finding the answer. (See p 171 number 1 for an example explanation, but make sure to use your own words.)
3. A pool is 5 ft deep, 12 ft long and 6 ft wide. Use the meaning of multiplication to explain why the pool has volume 5 x (12 x 6) cubic feet. (See p. 179 number 2 for an example explanation, but use your own words.)
4. Draw a diagram to illustrate the problem 2/5 x 3/5. Make sure to identify the whole associated to each fraction, and explain how your diagram illustrates the procedure for mutliplying fractions (why do we multiply the denominators? where is that in the diagram? why do we multiply the numerators? where is that in the diagram?).
5. Draw a diagram to illustrate the problem 2 1/3 x 6/7 . (You may change to improper fractions if you like.) Make sure to identify the whole associated to each fraction, and explain how your diagram matches with the standard procedure for multiplying mixed numbers/fractions.

Homework 15:
Read 6.2, 6.3, 6.4, 6.5
6.3 P 3, 7, 11
6.3 Practice Problem 4 (the solution is on the facing page, but try on your own first.)
6.4 P 1 a, b, c
6.5 P 1, 2, 3
6.5 Practice Problems 1-3 (not to turn in)

Homework 16:
Read 7.1, 7.2
7.1 Problems 1, 2, 5, 9
7.2 Problem 4
7.1 Practice Problems 1-5, 7,8 (not to turn in)