Using games to estimate and multiply fractions

Opening Estimations! It’s Halloween and Halloween means candy corn!

Objectives:

• I will use games to practice multiplication of fractions.

October Process Words

• Evaluate
• Represent

Estimating Fraction Multiplying

Game - 2 players
1. Each player rolls a pair of dice
2. Using the dice, form fractions (big die represents denominator)
3. Player A estimates the product using benchmarks fractions (0, 1/4, 2/4, 3/4, 4/4, 5/4...)
4. Each player works out the multiplication to see if the estimation was the closest.
5. If estimation is to the closest benchmark, Player A gets a point
6. Player B repeats
7. Play to 10

Fraction Product Game

1. Player 1 puts a marker on a number in the factor list. No space on the product grid fills in with Player 1's color because only one factor has been marked; it takes two factors to make a product.

2. Player 2 puts the other marker on any number in the factor list (including the same number marked by Player 1). The space on the product grid containing the product of the two factors marked is colored in with Player 2's color.

3. Player 1 moves either one of the markers to another number and the new product is filled in with Player 1's color.

4. Each player, in turn, moves a marker and the space with the product is marked with the proper color. If a product is already colored, the player does not get a mark for that turn. The winner is the first player to mark four spaces in a row -- up and down, across, or diagonally.

Game borrowed from Math Hombre

We will have a multiplication assessment on Friday. Review problems - PW47 and 48.