1. ‘Number prefixes bi, tri, quad, pent, hex, hept, oct, non, dec’
Year Six
Week 8
Focus
‘Number prefixes bi, tri, quad, pent, hex, hept, oct, non, dec’

2. The Rule number prefixes –
Number prefixes are morphographs that begin at the start of a word.
All morphographs have meaning. These prefixes represent numbers.
bi, tri, quad, pent, hex, hept, oct, non, dec

3. bicycle
biceps

4. bikini
bilingual

5. triangle
triplets

6. trilingual
quadrangle

7. quadriceps
pentagon

8. pentathlon
hexagon

9. heptathlon
octagon

10. nonagon
decade

11. decagon

12. bicycle b-i-c-y-c-le Sounds: 6 Digraphs: le
(dot for graphs & underline for digraphs)
Digraphs: le
Syllables: bi / cy / cle = 3

13. biceps b-i-c-e-p-s Sounds: 6 Syllables: bi / cepts = 2
(dot for graphs & underline for digraphs)
Syllables: bi / cepts = 2

14. bikini b-i-k-i-n-i Sounds: 6 Syllables: bi / kin / i = 3
(dot for graphs & underline for digraphs)
Syllables: bi / kin / i = 3

15. bilingual b-i-l-i-ng-u-a-l Sounds: 8 Digraphs: ng
(dot for graphs & underline for digraphs)
Digraphs: ng
Syllables: bi / ling / ual = 3

16. triangle t-r-i-a-ng-le Sounds: 6 Digraphs: ng le
(dot for graphs & underline for digraphs)
Digraphs: ng le
Syllables: tri / ang / le= 3

17. triplets t-r-i-p-l-e-t-s Sounds: 8 Syllables: trip / lets = 2
(dot for graphs & underline for digraphs)
Syllables: trip / lets = 2

18. trilingual t-r-i-l-i-ng-u-a-l Sounds: 9 Digraphs: ng
(dot for graphs & underline for digraphs)
Digraphs: ng
Syllables: tri / ling / al = 3

19. quadrangle qu–a-d-r-a-ng-le Sounds: 7 Digraphs: qu, ng, le
(dot for graphs & underline for digraphs)
Digraphs: qu, ng, le
Syllables: quad / rang / le = 3

20. quadraceps qu–a-d-r-a-c-e-p-s Sounds: 9 Digraphs: qu
(dot for graphs & underline for digraphs)
Digraphs: qu
Syllables: quad / ra / ceps = 3

21. pentagon p-e-n-t-a-g-o-n Sounds: 8 Syllables: pent / a / gon = 3
(dot for graphs & underline for digraphs)
Syllables: pent / a / gon = 3

22. pentathlon p–e-n-t-a-th-l-o-n Sounds: 9 Digraphs: th
(dot for graphs & underline for digraphs)
Digraphs: th
Syllables: pent / ath / lon = 3

23. hexagon h-e-x-a-g-o-n Sounds: 7 Syllables: hex / a / gon = 3
(dot for graphs & underline for digraphs)
Syllables: hex / a / gon = 3

24. heptathlon h–e-p-t-a-th-l-o-n Sounds: 9 Digraphs: th
(dot for graphs & underline for digraphs)
Digraphs: th
Syllables: hept / ath / lon = 3

25. octagon o-c-t-a-g-o-n Sounds: 7 Syllables: oct / a / gon = 3
(dot for graphs & underline for digraphs)
Syllables: oct / a / gon = 3

26. nonagon n-o-n-a-g-o-n Sounds: 7 Syllables: non / a / gon = 3
(dot for graphs & underline for digraphs)
Syllables: non / a / gon = 3

27. decade d-e-c-a-d-e Sounds: 6 Syllables: dec / ade = 2
(dot for graphs & underline for digraphs)
Syllables: dec / ade = 2

28. decagon d-e-c-a-g-o-n Sounds: 7 Syllables: dec / a / gon = 3
(dot for graphs & underline for digraphs)
Syllables: dec / a / gon = 3

29. Bicycle

30. Biceps

31. Bikini

32. Bilingual

33. Triangle

34. Triplets

35. Trilingual

36. Quadrangle

37. Quadriceps

38. Pentagon

39. Pentathlon

40. Hexagon

41. Heptathlon

42. Octagon

43. Nonagon

44. Decade

45. Decagon

46. Number Prefixes – bi, tri, quad, pent, hex, hept, oct, non, dec
Bicycle
Pentathlon
Biceps
Hexagon
Bikini
Heptagon
Bilingual
Octagon
Triangle
Nonagon
Trilingual
Decade
Quadrangle
Decagon
Quadriceps
Pentagon

47. Meanings Bicycle Biceps Bikini Bilingual Triangle Trilingual
Quadrangle
Quadriceps
Pentagon
Pentathlon
Hexagon
Heptagon
Octagon
Nonagon
Decade
Decagon

48. Meanings match Meanings here
Words here so teachers can draw a line together as a class to match them up