### Teaching and Group Activities for Understanding

**Day 1 Teaching**

2 children hold a washing line. Mark 1 end 0 and the other end 1000. Children place 3-digit numbers on the line, discussing which numbers to mark first to help us.**Group Activities**

-- Ordering and placing 3-digit numbers on a number or washing line.**Day 2 Teaching**

Display a landmarked 0-10,000 line and ask children to place 6000, 4500, 1250 and 9999 on the line. Then use a washing line to represent numbers 0 to 10,000. Ask children to place numbers on this line.**Group Activities**Use the in-depth problem-solving investigation ‘The Thousands Game’ from NRICH as today’s group activity.

Or, use these activities:

-- Place 4-digit numbers on 0-10,000 number lines and find numbers in between two 4-digit numbers.