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Kindergarten math · Unit 1: Counting to 20

Counting rows to 20

What this lesson shows

15 apples in 3 rows of 5. Count each row left to right, then the next row down: 15.

The worked example

The lesson works this one step by step: 15 apples. Then your kid tries one like it on paper.

The steps

  1. Start at the top left
  2. Count across the row
  3. Go down to the next row
  4. The last number tells how many

Helping at home

Read each box aloud. Your kid counts across the top row, then down to the next, touching each thing once, then writes the last number said.

If your kid gets stuck

Across the top row, then down to the next row.

Watch it with Lux

With Lux, this lesson is a narrated video and a printed page your kid works on. Then Lux helps with the same math on their own worksheet, one question at a time.

See how Lux works

Standards

  • Common Core K.CC.B.5
    Count to answer "how many?" questions about as many as 20 things arranged in a line, a rectangular array, or a circle, or as many as 10 things in a scattered configuration; given a number from 1-20, count out that many objects.
  • Common Core K.CC.A.3
    Write numbers from 0 to 20. Represent a number of objects with a written numeral 0-20 (with 0 representing a count of no objects).
Matches a standard in all 50 states and DCSee each state's code

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