# Multiplication Mania

## Curriculum Goal

#### Primary: Number Sense

• Recall and demonstrate multiplication facts of 2, 5, and 10, and related division facts.
• Sort and identify two dimensional shapes by comparing number of sides, side lengths, angles, and number of lines of symmetry.

#### Junior: Number Sense

• Recall and demonstrate multiplication facts from 0 × 0 to 12 × 12, and related division facts.
• Identify geometric properties of rectangles, including the number of right angles, parallel and perpendicular sides, and lines of symmetry.

## Context

• Two to four students and the teacher in-person, or on a video conference chat.
• Students should have prior experience multiplying numbers and identifying rectangles.

## Materials

In-person version

• One standard 52-card deck, number inclusion dependent on students’ level: i.e., A – 10 (Primary) or A – 12 (Junior)
• Game board (Appendix A)
• Coloured game pieces – one colour per child (15 pieces per child)

Online version

## Lesson

Primary:

• To win the game, players must be the first to create a rectangle or square by covering four different numbers on the Multiplication Mania game board.
• Suggest to students to take a moment to review what a rectangle looks like on the game board.
• Each player starts with six cards.
• Each turn, the player chooses two cards from their hand and places them in the Discard 1 and Discard 2 piles to create a multiplication equation.
• The player places their coloured token on the product of their multiplication equation on the gameboard.
• After their turn, each player refills their hand, so they always have six cards. If the deck runs out during the game, re-shuffle the cards from the discard piles and continue.
• While trying to build their own rectangle, players can also strategically block other players from making rectangles. For example, if a player notices an opponent needs to place their game piece on “70” to finish their rectangle, the player can block their opponent by creating a multiplication equation for 70 on their turn.
• The first player to successfully create a rectangle on the game board wins.

## Look Fors

• Can children multiply two single-digit numbers?
• Can children multiple a single-digit and a double-digit number?
• Can children multiply two double-digit numbers? (Junior).
• What strategies do children use to determine the product of the two numbers?
• Are children strategic by creating their own rectangle and simultaneously blocking those of their opponent?

## Extension

• Play this as Division Mania, or a combination of Multiplication and Division by changing the operation every round.
• Add in the Kings to represent 13.
• Allow students to use three or four cards (instead of two) to create multiplication equations with either one or two double-digit multipliers (Junior).

## Related Lessons

An engaging activity that gets students practicing and recalling simple multiplication facts.