Teaching and Group Activities for Understanding
Day 1 Teaching
Count reliably up to 20 objects and write the numbers in numerals.
-- Making cube snakes and re-ordering muddled numbers on a number line.
Day 2 Teaching
Place numbers up to 20 on a washing line or a bead bar using the landmarks of 5, 10, 15, 20.
-- Estimate the length of Plasticine worms and measure against bead strings.
Day 3 Teaching
Recognise and estimate numbers more and less than 20, making sensible guesses within a range (e.g. more than 5, less than 5, etc.)
Use the in-depth problem-solving investigation 'Count the Crayon' from NRICH as today's group activity.
Or, use these activities:
-- Estimate objects in pots then arrange and count.