### Teaching and Group Activities for Understanding

**Day 1 Teaching**

Model writing numbers dictated in words and show the place value of each digit using a place value chart. Write place value additions and subtractions, e.g. 43,561 – 3000.**Group Activities**

-- Work out what to add to a number with one zero, e.g. 50,555 to make all digits the same.

-- Identify numbers with digits of given value.

-- Create 5-digit numbers from given digits.**Day 2 Teaching**

Start with a 5-digit number and add/subtract 1s, 10s, 100s, 1000s, 10,000s to get a number with all the digits the same, e.g. 44,444. Discuss how to do this, letting children have a go first. Agree the place value of each digit.**Group Activities**Use the in-depth problem-solving investigation ‘Space Distances’ from NRICH as today’s group activity.

Or, use these activities:

-- Play a game adding 1s, 10s, 100s, 1000s, and 10,000s.

-- Work out what to add and subtract, one stage at a time to make the number 55,555.

**Day 3 Teaching**

Generate 5-digit numbers using cards, then place these on a line and compare pairs of numbers. Ensure children know which digits are most important when ordering or comparing numbers.

**Group Activities**

-- Play a game creating and comparing 5-digit numbers.