Taken from Jen @jen_aston

Taken from Michael Jacobs @msbjacobs

**Activity:
Find the secret number**

**Objective:**

To assess children’s understanding of number place value

**Task:**

To find secret number by stacking the cups (with different numbers)

**Things needed:
**Disposable cups with a number written on each cup

1st cup with a single digit number E.g: 1

2nd cup with a 2-digit number E.g: 30

3rd cup with a 3-digit number E.g: 600

4th cup with a 4-digit number E.g: 2000

and so on with desired place value to be tested…

**Pre-requisites:**

Able to identify number place value

**Procedures:**

- Cups with the numbers written on them are to be placed randomly on the table.
- Given half a minute, the child/children in group has/have to stack the cups to find the missing number.

**Lesson extension:**

This activity can be proceeded to show children to mechanism of adding numbers (abstract representation of numbers).