Math Core

Lesson 6.3 ยท Measurement and Data

Sorting into groups

When you clean up toys, you put cars in one bin and blocks in another. That is sorting. Sorting puts things that are alike into the same group.

Pick a rule

To sort, choose a rule. The rule tells where each thing goes. You can sort by:

  • Color: red things, blue things
  • Shape: circles, squares
  • Size: big things, small things
  • Kind: fruits, animals, toys

Definition

Sort

To sort is to put things into groups. Everything in a group follows the same rule.

Worked example: Sort by kind

Sort these into fruits and animals.

๐ŸŽ ๐Ÿถ ๐ŸŒ ๐Ÿฑ ๐Ÿ‡

Fruits: ๐ŸŽ ๐ŸŒ ๐Ÿ‡

Animals: ๐Ÿถ ๐Ÿฑ

Worked example: Sort by color

Sort these circles by color.

๐Ÿ”ด ๐Ÿ”ต ๐Ÿ”ด ๐Ÿ”ต ๐Ÿ”ต

Red: ๐Ÿ”ด ๐Ÿ”ด

Blue: ๐Ÿ”ต ๐Ÿ”ต ๐Ÿ”ต

Worked example: What doesn't belong?

Which one does not belong?

๐Ÿš— ๐ŸšŒ ๐Ÿšฒ ๐Ÿ•

A car, a bus and a bike are all ways to get around. Pizza is food. The pizza does not belong.

Common mistake

Use just one rule at a time. If you sort by color, don't switch to shape halfway through.

Practice

Practice 1

Which one does not belong?

๐Ÿถ ๐Ÿฑ ๐ŸŒ ๐Ÿฐ

Practice 2

Sam sorts by color. Which group should ๐ŸŸฅ go in?

Practice 3

These are sorted into two groups. What is the sorting rule?

Group 1: ๐ŸŽ ๐Ÿ“ ๐Ÿ’

Group 2: ๐Ÿฅฆ ๐Ÿฅ’ ๐Ÿ

Practice 4

Sort these into shapes. How many are circles?

๐Ÿ”ต ๐ŸŸฆ ๐Ÿ”ต ๐ŸŸฆ ๐Ÿ”ต

Type a number.

Practice 5

Sort these into fruits and toys. How many are toys?

๐Ÿ ๐Ÿงธ ๐ŸŠ โšฝ ๐Ÿ‹

Type a number.

Practice 6

Which one does not belong?

โญ โญ ๐ŸŒ™ โญ

Practice 7

Ana sorts her animals into two groups: animals that fly and animals that swim. Where does the ๐ŸŸ go?