The importance of repitition in maths

[confusedinlondon]

My year 2 son is struggling with addition by going through ten. Adding by column addition even carrying over the one he is fine with.
The class has moved onto money and other stuff now. But my son and others still haven't master addition or subtraction.
I thought that teachers would continue to teach this until students had mastered it rather than moving onto something else.
I have started doing 3 sums with him 3 days a week and he is still confused about what to add. I want to continue as I think this is a fundamental part of maths.
I have read that children might get bored of doing the same sums but I thought that repitition was important so he can fully understand things.
Not sure if i should continue until he gets it or continue over Xmas and then stop. Any advice.

Repetition yes, but also approach it in different ways, explaining it differently, or try and get someone else to explain it as they may word it in a way he understands and take breaks. Daily failure will only break his confidence.

Have you used visual tools, like abacus, counters, legos, numicons, etc?

Give him a break for a couple of weeks, and play games that have a practical use for numbers instead. Card games, dominoes etc. Logic puzzles are good too, noughts and crosses, draughts, connect-4, that sort of thing. He needs to train his brain to think logically and to use numbers without realising what he's doing, so don't tell him why you are playing these games!

Play lots of board games and card games. It's all about providing more opportunity to add and subtract. Sum swamp is a very simple addition and subtraction game. Haba secret code is a fun game with a theme which most kids love. Rat a tat Cat is an excellent card game for addition and simple strategy. Sleeping queens is also amazing for maths practice. Join the group 'little board gamers' on facebook. It is an excellent group where you can get lot of suggestions. There are lots of games and most under 10£. Don't stress about doing the three sums. Instead play a lot of games.
The schools will need to move on since they can't be doing the same thing until all children have mastered it, else they won't be able to cover much syllabus at all.

Addition and subtraction is normally covered in the autumn term, then repeated as part of measures, money etc throughout the year. They will be going over it constantly. It is impossible to keep on one unit until all children have mastered it though - children within a KS1 class might range from working at a pre-reception level to Y4 level or above, they will simply not pick everything up at the same time and rate.

Personally I wouldn't even consider column methods until he is secure on place value of tens and hundreds.

Place value counters are incredibly helpful as well as magnets on baking trays. Google base 10 magnet baking trays, they're great for repetitive practice of basic addition and subtraction facts up to 20. They offer a quick visual that can be supported with written calculations.

Also, as PP said, it is impossible to stay on one maths unit until everyone has secured it. You reach a point where you just have to move on but follow up with those who are less strong.

Look on the white rose website if you want good examples of visual representations.

have you discussed his difficulties with his teacher?

I have a child with learning difficulties who struggled too and if the teacher would have waited for her to master it, it would have held up the whole class. Maybe your DS needs some extra support in maths in school?

Just to say that maths is taught in a spiral all the way to year 11.
they focus on different things eg Number, Data handling, Shapes and then come back. Each time they come back the review what has 'stuck' from before and then build on from there.

I agree with the others re visual aids, especially number lines.
(Money also helps a lot when doing column addition an subtraction).

Repetition definitely helps, but you need the understanding, not just doing something by rote.

My DS discovered numberjacks on the PC years ago and it really helped him with his maths