EdithW
SP reliably produces fewer than 5% who struggle
That is what SP evangelists claim, but nobody has been able to find any objective evidence for this.
I agree that
There really is no reason to accept a 20% failure rate when there is a better alternative.
The problem is that the only way of reducing it reliably is to improve English spelling. But as this option is unacceptable to the majority of vociferous speakers of English, it will not happen, at least not any time soon and the 20% failure rate will remain.
Roughly 1 in 5 children fail to learn to read proficiently because of the following phonic inconsistencies:
a: and ? apron, any, father
a-e: came ? camel
ai: wait ? said, plait
al: always ? algebra
-all: tall - shall
are: care - are
au: autumn - laugh, mauve
-ate: to deliberate - a deliberate act
ay: stays - says
cc: success - soccer
ce: centre - celtic
ch: chop ?chorus, choir, chute
cqu: acquire - lacquer 19
e: end ? English
-e: he - the
ea: mean - meant, break
ear: ear ? early, heart, bear
-ee: tree - matinee
e-e: even ? seven, fete
ei: veil - ceiling, eider, their, leisure
eigh: weight - height
eo: people - leopard, leotard
ere: here ? there, were
-et: tablet - chalet
eau: beauty ? beau
- ew: few - sew
- ey: they - monkey
ge: gem - get
gi: ginger - girl
gy: gym ? gynaecologist
ho: house - hour
i: wind ? wind down ski hi-fi
- ine: define ?engine, machine
ie: field - friend, sieve
imb: limb ? climb
ign: signature - sign
mn: amnesia - mnemonic
ost: lost - post
-o: go - do
oa: road - broad
o-e: bone ? done, gone
-oes: toes ? does, shoes
-oll: roll - doll
omb: tombola - bomb, comb, tomb
oo: boot - foot, brooch
-ot: despot - depot
ou: sound - soup, couple
ough: bough - rough, through, trough, though
ought: bought - drought
oul: should - shoulder, mould
our: sour - four, journey
ow: how - low
qu: queen ? bouquet
s: sun ? sure
sc: scent - luscious, molusc
-se: rose - dose
ss: possible - possession
th: this - thing
-ture: picture - mature
u: cup ? push
ui: build ? fruit, ruin
wa: was ? wag
wh: what - who
wo: won - woman, women, womb
wor: word ? worn
x: box - xylophone, anxious
- y-: type - typical
- -y: daddy - apply
z: zip ? azure