Math Intervention 3–5 Grade

Addition and Subtraction Concepts 49

Hungry Frog

A game designed to build the concept

of take away subtraction

Materials :

Q (^) Hungry Frog Game Board
Q (^) 40 small counters
Q^ Dice (two six-sided cubes
labeled 1–6 with numerals)
Directions:

1. Players place one counter on each fl y on the game board.


2. The fi rst player rolls both dice and decides which number
   she wants to use to represent how many fl ies Hungry Frog
   will eat. The player tells a number story about Hungry
   Frog eating fl ies, models the take away subtraction by
   taking away counters, and states the subtraction equation.
   For example, there are 40 fl ies. Hungry Frog eats three.
   Now there are 37 fl ies left, 40 – 3 = 37.


3. The next player rolls the dice and chooses one of the numbers
   to be the subtrahend. The player tells the new subtraction
   story and states the equation. For example, 37 – 5 = 32.


4. Players take turns rolling the dice, choosing a subtrahend,
   telling and modeling the associated number story, and
   stating the equation.


5. The winner is the player who has Hungry Frog eat the last
   fl y. An exact number must be rolled to win.

Content Differentiation :

Moving Back: Use half of the game board and start with 20 fl ies.

Moving Ahead: Use mental math to play this game without

counters or the game board. Tell different kinds of number

stories.

PLAYERS:

2 OR MORE