CPM Lesson 3.1.1

Cecil’s trainers proposed each of the following movements.  Which one requires the longest rope?  Draw diagrams to justify your answer. Label each letter and how long the rope is for each

1. A. 8+2(6.48) feet

2. B. 2+8(6.48) feet

3. C. (8+2)6.48 feet

The expression 5+3·4+2 can be used to represent the group of + tiles shown at left.

A. Work with your team to explain how each part of the expression connects with the groups of + Tiles. How many tiles are there?