# War

## Curriculum Goal

#### Kindergarten: Demonstrating Literacy and Mathematics Behaviour

• Demonstrate an understanding of numbers, using concrete materials to explore and investigate counting, quantity, and number relationships (#15).

#### Primary: Number Sense

• Recall and demonstrate addition facts for numbers up to 10, and related subtraction facts.

#### Junior: Number Sense

• Recall and demonstrate multiplication facts from 0 × 0 to 12 × 12, and related division facts.

## Context

• Two to four students and the teacher will be sitting on the carpet in a circle or on a video conference chat.
• Students should have previous experience with number magnitude (early years) or adding and subtracting (primary).

## Materials

In-person version

• One standard 52-card deck, number inclusion dependent on students’ level: i.e., A – 10 (early years) or A – 13 (primary)

Online version

## Lesson

Early Years:

• Deal out entire deck of cards equally among students.
• Players simultaneously turn over the top card of their deck.
• The player with the highest card takes all played cards and places them at the bottom of their deck.
• When two players turn over the same highest number, a war is launched – each player puts down two more cards, face down, then turns up a third card. The person with the highest card takes all the cards in that round.
• The game ends when one player has all the cards.

## Look Fors

• Do the children know the magnitude of their numbers on the cards (early years)?
• Can children read symbolic numbers (early years)?
• What strategies do the children implement to determine the number’s magnitude?
• Can children quickly determine which number is larger (early years/primary)?
• Can children add or subtract two single- or double-digit numbers (primary)?

## Extension

• Player with the smaller number wins each round.
• Addition War, Subtraction War, Multiplication War, etc. Players turn up two cards each round. Player with the largest sum (or difference, or product) takes all.
• Face cards can count as 11, 12, 13.

Created by Yara Salloum. Adapted by The Robertson Program.

## Related Lessons

Students challenge one another as they compare number quantities from 1-100.

A possible introductory activity, students practice their addition/subtraction skills playing this card game.