Every day when we begin our math's lesson, we always look at the numbers on our washing line. The numbers go from 0 - 20. See if you can count up to 20 and then challenge yourself and see if you can count backwards. If that's a little tricky start by counting backwards from 10.
What you need: 5 small objects like buttons/conkers/lego etc and 2 plates
Explore how you can arrange your objects between the 2 plates. Keep having a go with different amount of objects up to 5.
Say what you can see, for example 'I can see there are 2 buttons on this plate and 3 buttons on that plate and altogether I have got 5 buttons.