How Many Groups? (part 1)
4.1 Equal-sized Groups
Write a multiplication equation and a division equation for each statement or diagram.
Select two answers.
1. Eight $5 bills are worth $40.
Select two answers.
2. There are 9 thirds in 3 ones.
Select two answers.
(see image above)
4.2 Reasoning with Pattern Blocks
Use the pattern blocks in the applet to answer the questions
If a hexagon represents 1 whole, what fraction do each of the following shapes represent?
1 triangle?
1 rhombus?
1 trapezoid?
4 triangles?
3 rhombuses? Enter your answer in simplest form.
2 hexagons? Enter your answer in simplest form.
1 hexagon and 1 trapezoid? Enter your answer as a mixed number. Be sure there is a space between the whole number and fraction.
Here are Elena's diagrams for and . Do you think these diagrams represent the equations? Explain your reasoning.
Use pattern blocks to represent 3 x 1/6 = 1/2.
Use pattern blocks to represent 2 x 3/2 = 3.
4.3 (Cool Down) Halves, Thirds and Sixths
Answer the following questions. If you get stuck, use pattern blocks.
a. How manys are in ?
b. How many s are in ?
c. How many s are in ?