1. CS 2 Review: Proportional Relationships
Learning Target: I can complete rate tables, find unit rates, and write/graph equations for proportional relationships.
Homework: Complete p. 4 and correct with EdPuzzle Video CS 2 Review Warm Up (packet p. 2):
Which of these items is the better buy: a 40-pack of pencil-top erasers for $2.82 or a 2-pack of pencil-top erasers for $0.12? Show your thinking.

2. 40-pack of erasers = 1-pack of erasers
$ $0.07
2-pack of erasers = 1-pack of erasers
$ $0.06

3. 0.67 or 2/3
$1.50
0.67 or 2/3 of a dozen
$1.50
$1.50
0.67 or 2/3
1.5
0.67

4. 1.5 0.67 3.3 Cost ($) Dozens of apples 7.5 6 4.5 3 1.5 2.67 2 1.3 0.67
Dozens of apples
Cost ($)

5. 6.25
$0.16
1 water bottle
$0.16
6.25 water bottles $1
$ water bottle
6.25 w. bottles $1
6.25 × c
0.16 × w

6. That point represents the unit rate
6.25 × c
0.16 × w
Water bottles
Cost ($)
31.3 25
18.8
12.5
6.25
0.8
0.64
0.48
0.32
0.16
Cost ($)
Water bottles
That point represents the unit rate
$1 buys 6.25 water bottles in the first graph
1 water bottle costs $0.16 in the second graph

7. Additional Time:
Review Check Up 2
Start Homework on Page 4 (Complete and then correct with EdPuzzle)