1. Visualising Numbers
Counting, numbers and amounts to 20, with shapes and pictures
Click each time to count and see what happens

2. 1
one

3. 2
two

4. 3
triangle
three

5. 4
four
square

6. 5
five
pentagon

7. 6
six
hexagon

8. 7
seven
heptagon

9. 8
eight
octagon

10. 9
nonagon
nine

11. 10
ten
decagon

12. 11 10
10 + 1 +
hendecagon
eleven

13. 12 10 +
dodecagon
twelve

14. 13 10 +
baker’s dozen
thirteen

15. 14 fourteen 10 + two weeks : a fortnight monday monday tuesday tuesday
wednesday
wednesday
thursday
thursday +
friday
friday
saturday
saturday
sunday
sunday
two weeks : a fortnight
fourteen

16. 15 10 +
fifteen minutes
fifteen seconds
fifteen
¼ of an hour

17. 16 10 + +
sixteen

18. 17 10 +
seventeen

19. 18 10 +
eighteen

20. 19 10 +
nineteen
20 – 1

21. + 20 10 10 2 +
twenty