Children ask questions to guess a number.
Tap a step to mark it as done.
Model example questions clearly at the start. This activity builds mathematical language naturally.
Use a visible number line so children can cross out eliminated numbers.
Do children ask questions that eliminate many numbers at once, or guess randomly? Can they explain their logic?
This activity requires no materials at all — only voices and thinking. A number line drawn in soil helps children track eliminated numbers.
Children often ask questions that eliminate only one number at a time (e.g. 'Is it 4?') rather than using comparisons to eliminate many at once (e.g. 'Is it bigger than 5?'). Model the more efficient strategy explicitly.
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