Digital Cards – Creative Activity in Whole Tens

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Ronit Bassan-Cincinatus
Dorit Patkin

Abstract

Some people solve the same assignment in different ‘individual’ ways. The activity “Creative activity in whole tens” engages in a directed assignment of exploring the addition of two numbers whose sum is in whole tens. It includes: a table of multiplication, a table of hundreds and a table of thousands. A systematic recording of exercises, figures whose sum is in whole tens, and solution in different ways. The assignments were designed for 1st to 6th graders and based on the principle of using “digit cards” labelled from 0 – 9 and focused on added numbers using digit cards, form two numbers so that their sum is in whole tens. The contribution is manifold: performing “effective” oral calculations, estimations and approximations; promoting awareness of the order, sequence and place of numbers; examining a variety of the solution methods; decomposing a number into components and combining figures; drawing conclusions and enhancing mathematical insights.

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References

Bassan-Cincinatus, R., & Patkin, D. (Eds.) (2018). Creative activity in whole tens. In International Scientific Conference. Lublin, Poland.
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