Teaching and Group Activities for Understanding
Day 1 Teaching
Discuss how we mark 2-digit numbers on a line 0–100. Then mark 275 on a line 200–300. Discuss halfway, and where 275 goes. Repeat, marking numbers on a 400–500 line.
-- Create a game placing hidden 3-digit numbers between hundreds on a landmarked line.
-- Mark 3-digit numbers on landmarked lines.
Day 2 Teaching
Review the top tips written yesterday. Model how to think about half and quarter to help place 3-digit numbers on a 0–1000 line.
-- Place 3-digit numbers on 0–1000 landmarked lines.
-- Make and use a 0–1000 number line.
-- Play a game to find mystery numbers string ‘number line’.
Day 3 Teaching
Play the Nasty Game. Show a place value grid (100s, 10s and 1s). Write different numbers on the grid, discussing their place value.
-- Play the ‘Nasty Game’ to make and compare 3-digit numbers.
Day 4 Teaching
Compare and order numbers using the place value grid. Discuss which digit to look at when the hundreds digit is the same. Find 3-digit numbers which fall between two given 3-digit numbers.
-- Order numbers using number lines and place value.
-- Find numbers between pairs of 3-digit numbers.
-- Ask questions to determine a mystery 3-digit number.
Day 5 Teaching
Challenge children to write the largest 3-digit number using digits 0–9 only once each. Repeat for other target numbers.
Use the in-depth problem-solving investigation ‘Counter Place Value’ as today’s group activity.
Or, use this activity.
-- Investigate making 3-digit numbers with given criteria.