He needs to get those learning gaps filled in ASAP, and that requires either very good self-teachinh skills and the time to do it, or the institutional support to take remedial courses and/or tutoring (which also takes time, of course).
You're completely correct that without these foundations, his current coursework is going to be more difficult and some of it will be impossible. If he can't do core arithmeric, at minimum it means he will need the option of a calculator and probably more time during tests, but he will still find it impossible to answer new questions if he lacks the conceptual basis of what the math is about.
The suggestions of math munchers and so on are good ones, but I fear the bigger issue is not being comfortable with the concepts of division or multiplication, so while memorization is useful it still might only be a memorization skill. These are ideas taught in grades 3-5, so it's important to see how much remedy is still needed and to make a realistic plan to get him up to speed.
I think the most important question is whether he is intetested in and comfortable with this remedial work, because if he is you can give him books and other resources.
PS common core math was designed for exactly this kind of learning gap. You might find that to be a good direction because it will feel like a new thing and aproach rather than remedial.
He needs to get those learning gaps filled in ASAP, and that requires either very good self-teachinh skills and the time to do it, or the institutional support to take remedial courses and/or tutoring (which also takes time, of course).
You're completely correct that without these foundations, his current coursework is going to be more difficult and some of it will be impossible. If he can't do core arithmeric, at minimum it means he will need the option of a calculator and probably more time during tests, but he will still find it impossible to answer new questions if he lacks the conceptual basis of what the math is about.
The suggestions of math munchers and so on are good ones, but I fear the bigger issue is not being comfortable with the concepts of division or multiplication, so while memorization is useful it still might only be a memorization skill. These are ideas taught in grades 3-5, so it's important to see how much remedy is still needed and to make a realistic plan to get him up to speed.
I think the most important question is whether he is intetested in and comfortable with this remedial work, because if he is you can give him books and other resources.
PS common core math was designed for exactly this kind of learning gap. You might find that to be a good direction because it will feel like a new thing and aproach rather than remedial.
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