← Kablam
One screen. The whole class.

Counting on together

Build addition within 20 through counting on and combining groups. Make time to compare strategies.

Learning goals

  • Combine quantities and explain an addition strategy.

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

  • Review the questions and suitability for your class.

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. The number bridge · Free

    Add two small quantities by counting on or combining groups.