Using the Slavonic Abacus to Reinforce Five Grouping

Achievement Objectives
NA1-3: Know groupings with five, within ten, and with ten.
Specific Learning Outcomes

Instantly recognise patterns to 10, including finger and tens frame patterns.

Recall the facts up to 10, and the teen facts.

Description of Mathematics

Number Framework Stages 2-4

Required Resource Materials
Slavonic abacus
Activity

Push over a small number of beads, for example, six, and ask “How many beads did I just push over?” and “How did you know it was six without counting the beads?” Aim for responses like “I know that one more than five is six.”

Alternatively, start by pushing across five beads and ask “How many more to make nine?” Follow up by asking “How did you know?”

Activity

Push across a small number of beads and ask how many more are needed to make 10. This is reinforcing the key knowledge of pairs of numbers that add up to 10
 

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