Addition and Subtraction, Problem Solving
Key Stage: 1 ★
There are ten eggs overall in three baskets. Can you work out how many eggs are in each of the baskets?
This problem involves addition and subtraction, and requires children to work on three interdependent conditions simultaneously. Realising that changing the eggs in one basket affects the others takes a sophisticated bit of reasoning. The problem could be used to focus on children's mathematical representations and it is a good context in which to talk about using trial and improvement, combined with a systematic approach.
This resource has comprehensive teachers' notes and resources, linked from the problem page. This includes possible approaches and key questions, as well as possible support and extensions.
The file attached is a HTML file, which, when opened, automatically redirects you to the problem on the NRICH website.
Key Stage: 1 ★
There are ten eggs overall in three baskets. Can you work out how many eggs are in each of the baskets?
This problem involves addition and subtraction, and requires children to work on three interdependent conditions simultaneously. Realising that changing the eggs in one basket affects the others takes a sophisticated bit of reasoning. The problem could be used to focus on children's mathematical representations and it is a good context in which to talk about using trial and improvement, combined with a systematic approach.
This resource has comprehensive teachers' notes and resources, linked from the problem page. This includes possible approaches and key questions, as well as possible support and extensions.
The file attached is a HTML file, which, when opened, automatically redirects you to the problem on the NRICH website.
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Great problem from the brilliant nrich website. Aimed at KS1.
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