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Secret Numbers

The Ministry is migrating nzmaths content to Tāhurangi.           
Relevant and up-to-date teaching resources are being moved to Tāhūrangi (tahurangi.education.govt.nz). 
When all identified resources have been successfully moved, this website will close. We expect this to be in June 2024. 
e-ako maths, e-ako Pāngarau, and e-ako PLD 360 will continue to be available. 

For more information visit https://tahurangi.education.govt.nz/updates-to-nzmaths

Purpose

This purpose of this activity is to work out a partner's secret number using knowledge of number sequence.

Achievement Objectives
NA2-2: Know forward and backward counting sequences with whole numbers to at least 1000.
AO elaboration and other teaching resources
Specific Learning Outcomes
  • Use their knowledge of number sequence to order numbers.
Activity
  1. The students play this game in pairs. One partner chooses a number between 0 and 1000 and writes it on a piece of paper without showing the other person.
  2. The person guessing asks questions about the size of the secret number. For example "is it smaller than 500?".
  3. The person with the secret number answers "yes" or "no".
  4. The students can count the number of question it takes to guess the secret number.
 

 

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Level Two