Grade 2 · Unit 8: Data representation and interpretation

Sorting and classifying

Sort things into groups by what they have in common.

Sorting at the market

Sellers sort vegetables into piles. Each pile is a category. Sorting makes things easier to find and count.

Sorting by a rule

To classify, choose a rule. Rule: Is it a fruit or a vegetable? Each item goes in one group.

Carroll diagrams

A Carroll diagram sorts with two rules. Each number fits in one box. 12 is even and not less than 10.

Venn diagrams

Circles can overlap. Things that fit both rules go in the middle. An apple is red AND a fruit.

What I learnt

• I can sort using a rule.
• I can use Carroll and Venn diagrams.