← Kablam
One screen. The whole class.

Counting tells how many

Counting tells how many: One number for each object → The last number tells how many → Numerals and quantities → Which has more?.

Learning goals

  • Count arranged/scattered sets with one-to-one correspondence and recognize zero.
  • Match a counted set to its cardinal number even after rearrangement.
  • Connect written numerals 0–20 with sets, including teen quantities.
  • Compare sets to 10 by matching/counting and compare written numbers 1–10.

A suggested order, with freedom to open or replay any available activity. Played activities help teachers continue a sequence; they do not measure mastery.

Open this path in the classroom

Before you begin

  • Informal counting, spoken quantity words and experience with objects.

One computer and a whiteboard or shared display. Pupils participate without accounts. The teacher sets the pace and can repeat or skip each activity.

  1. One number for each object · Free

    Count arranged/scattered sets with one-to-one correspondence and recognize zero.

  2. The last number tells how many · Free

    Match a counted set to its cardinal number even after rearrangement.

  3. Numerals and quantities · Free

    Connect written numerals 0–20 with sets, including teen quantities.

  4. Which has more? · Free

    Compare sets to 10 by matching/counting and compare written numbers 1–10.