# Closest To....

## Curriculum Goal

#### Primary: Number Sense

• Use place value when describing and representing multi-digit numbers in a variety of ways, including with base ten materials.

#### Junior: Number Sense

• ​Read, represent, compare, and order decimal numbers up to hundredths, in various contexts.

## Context

• Students and teacher will be sitting on the carpet in a circle or on a video conference chat online.​
• Students should have previous experience with place value for both whole numbers (primary) and decimal numbers (junior).

## Materials

In-person version

• One standard 52-card deck with face cards and jokers removed
• A sheet of paper with place values indicated (Appendix A)
Online version

## Lesson

• Explain the place value while using the cards as a visual cue; ask students to name each place value position in the game (Appendix A) and then pull a card from the deck and ask students to say together what the number would represent in each place value (e.g., 1, 10, 100).
• Explain the rules of the game (these can be adapted to skill level – see extensions).
• Each player will be given three cards that they hold in their hand.
• They need to re-arrange their cards and place them down on their turn to make the highest number.
• Once everyone’s numbers are filled in front of them the game is over and the person with the highest number wins.

## Look Fors

• Do children accurately identify the numbers they made?​
• What strategies do children use to play the game? Do they consider the probability of getting a desired card?
• What misconceptions do the children have about place value in decimals and whole numbers?

## Extension

Closest to….tens and ones (Early Years/Primary)

• This is a simpler version of the game with only two spots.
• As in Closest to…Hundreds Tens and Ones, cards are handed out to students.
• Students pick up the cards and order them to make the highest card possible.