Football Field

The Football Field is a location and an activity in JumpStart 2nd Grade. It uses addition and subtraction for kids going at the bottom and top. The football yard line reaches 100. CJ holds the plus or minus sign. Edison is a referee blowing the whistle. Visitors and JumpStart get points increasing and decreasing from 0 to 100 with kids for addition and subtraction to save the JumpStart team from penalties.

The Yard Line
Using addition to increase or subtraction to decrease will carry a kid at the top with another kid at the bottom.

Carrying the One
In addition, the kid jumps on a kid's head from the ones column as it carries to the tens column.

Borrowing
In subtraction, each kid on each head must borrow from the tens column to the ones column.

Counting by Fives
5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100

Kids on Their Heads
Addition and subtraction are used when changing to increase or decrease. The kid jumps on a head in addition. Another kid jumps on another head in subtraction. Plus will change to minus.