CCSS K.MD.B.3 Worksheets

Kindergarten · Measurement & Data

Sort objects into categories and count how many are in each category.

Below are free printable worksheets that support K.MD.B.3. Print them as PDFs, or generate a fresh one. Every math answer key is computed in code, so it is never wrong.

Teach this standard

Deliver a whole lesson on K.MD.B.3 from a textbook-grade teaching unit, with a hook, worked examples, diagrams, misconceptions, and an exit ticket.

Measuring, comparing and sorting

Kindergarten (ages 5 to 6)

Teaching guide

What students learn

Sort objects into categories and count how many are in each category.

How to teach it

Count real objects out loud, touching each one once, then match the count to the written numeral. Practise counting on from a number, not always from one.

Worked example

1, , 3, 4, 5

Answer: 2

Generated and checked in code, so it is correct.

Watch out for

Skipping or double-counting objects (weak one-to-one correspondence), and thinking the last number said is just a label rather than the total.