‘Number prefixes

bi, tri, quad, pent, hex, hept, oct, non,

dec’

Year SixWeek 8Focus

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, dec2 3 4 5 6 7 8 9 10

The Rule number prefixes –

bicycle

biceps

bikini

bilingual

triangle

triplets

trilingual

quadrangle

quadriceps

pentagon

pentathlon

hexagon

heptathlon

octagon

nonagon

decade

decagon

b-i-c-y-c-leSounds: 6(dot for graphs & underline for digraphs)

Digraphs: le

Syllables: bi / cy / cle = 3

bicycle

b-i-c-e-p-sSounds: 6(dot for graphs & underline for digraphs)

Syllables: bi / cepts = 2

biceps

b-i-k-i-n-iSounds: 6(dot for graphs & underline for digraphs)

Syllables: bi / kin / i = 3

bikini

b-i-l-i-ng-u-a-lSounds: 8(dot for graphs & underline for digraphs)

Digraphs: ng

Syllables: bi / ling / ual = 3

bilingual

t-r-i-a-ng-leSounds: 6(dot for graphs & underline for digraphs)

Digraphs: ng le

Syllables: tri / ang / le= 3

triangle

t-r-i-p-l-e-t-sSounds: 8(dot for graphs & underline for digraphs)

Syllables: trip / lets = 2

triplets

t-r-i-l-i-ng-u-a-lSounds: 9(dot for graphs & underline for digraphs)

Digraphs: ng

Syllables: tri / ling / al = 3

trilingual

qu–a-d-r-a-ng-leSounds: 7(dot for graphs & underline for digraphs)

Digraphs: qu, ng, le

Syllables: quad / rang / le = 3

quadrangle

qu–a-d-r-a-c-e-p-sSounds: 9(dot for graphs & underline for digraphs)

Digraphs: qu

Syllables: quad / ra / ceps = 3

quadraceps

p-e-n-t-a-g-o-nSounds: 8(dot for graphs & underline for digraphs)

Syllables: pent / a / gon = 3

pentagon

p–e-n-t-a-th-l-o-nSounds: 9(dot for graphs & underline for digraphs)

Digraphs: th

Syllables: pent / ath / lon = 3

pentathlon

h-e-x-a-g-o-nSounds: 7(dot for graphs & underline for digraphs)

Syllables: hex / a / gon = 3

hexagon

h–e-p-t-a-th-l-o-nSounds: 9(dot for graphs & underline for digraphs)

Digraphs: th

Syllables: hept / ath / lon = 3

heptathlon

o-c-t-a-g-o-nSounds: 7(dot for graphs & underline for digraphs)

Syllables: oct / a / gon = 3

octagon

n-o-n-a-g-o-nSounds: 7(dot for graphs & underline for digraphs)

Syllables: non / a / gon = 3

nonagon

d-e-c-a-d-eSounds: 6(dot for graphs & underline for digraphs)

Syllables: dec / ade = 2

decade

d-e-c-a-g-o-nSounds: 7(dot for graphs & underline for digraphs)

Syllables: dec / a / gon = 3

decagon

Bicycle

Biceps

Bikini

Bilingual

Triangle

Triplets

Trilingual

Quadrangle

Quadriceps

Pentagon

Pentathlon

Hexagon

Heptathlon

Octagon

Nonagon

Decade

Decagon

Bicycle Biceps Bikini Bilingual Triangle Trilingual Quadrangle Quadriceps Pentagon

Pentathlon Hexagon Heptagon Octagon Nonagon Decade Decagon

Number Prefixes – bi, tri, quad, pent, hex, hept, oct, non, dec

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

Meanings match Meanings here Words here so

teachers can draw a line together as a class to match them up