This activity is designed to practice:
Establishing whether a number up to 100 is prime.
Description of Activity:
Students should be handed a 1-100 number square. Circle the number 2 then cross out all the other multiples of 2. Circle 3 then cross out all the other multiples of 3. 4 is already crossed out so circling the next number would be 5; cross out all the other multiples of 5. Continue this process until the final number is circled (97).
Use the RAG analysis to track progress.
Differentiation strategies and teaching hints and tips provided.
All answers are provided.
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