How to write 3
Three is two bumps in a single stroke: start at the top left, curve round to the middle, then curve round again to the bottom and finish on the left. Saying "around and around" helps.
Number facts for three
One more than three is 4, and one less is 2. 3 is odd, so 3 socks make 1 pair with one left over. You can make three as 2 + 1. On a ten-frame it leaves 2 empty boxes in the top row. Count on from 3: 4, 5, 6. Count back: 2, 1, 0.
Three in real life
Tell the story of the three little pigs with three paper cups as the houses. Count to three before the wolf huffs and puffs, then draw three pigs or three houses in the empty row.
On this page
A solid 3 with a numbered arrow comes first, then dotted copies, the word "three" and an empty row to write alone. When it feels easy, try 4.