Well I think its how the school runs its self and systems in place that determine how easy/sucessful it is.
Dd attended 2schools both mixed classes and prefer way school b does it to school a.
Im not not keen on mixed reception/year 1 and old school has a
rception class and r1 class.
I also think 2/3class hard as 2diffrent keystages but both schools have mixed.
Old school had no pure class /year 5 had a 4/5, 5,6 then year 6 some junior parents moaned about it including a teacher and said wasent ideal.
I think year 6 is so pressured in state school can be beneficail to have pure year 6class.
old school have 45per year intake so 30 /15split 15 being in mixed class which alteranted and changed every year.
So dd had no lessons or anything to do with older children in year year in mixed 2/3 clsss sad as they were in her year 1 class last year and she missed them.
Old school 10classes new school 5.
but new school mixed things like handwriting /phonics groups by ability so her phonics group has year 2, 3 and couple year 4s prividing they all same ability imagine easier to teach.
They also teach who year group combined for science but theres only 20per year so shes 1 /9 in mixed year 1/2 clasa nd combines with 10older ones in her year in 2/3class so better intergration and they rotate subjects and residentail trips every other year 2,
So far we still at infants but feel impressed even though she has to spend 2years in 1 class I think she will do fine.
I think tas play bigger part in split classes.
Also smaller numbers more managable
strength of teacher
how varied the ability groups are.
I know one local junior school that everyones quite high achieving they not selective but in nice postcode.
I have mixed opinions as think split classes not benefited my child in infants due to her birthday and way the year were split she was always in pure class of her year and ones who had been mixed did better. shes now oldest in mixed class year 1/2 and really boosted her self esteem and confidence she was in pure year 2 where she was behind the younger ones in year who has been in split class in year 1.
That could just be her school.
I think theres some studies online about mixed classes and remember one parent whinging but with shortages of school places and bulge classes i forsee more mixed in future.