Reply to Did anyone else learn "Dot Math" growing up? If not, how were you taught to add and subtract?

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Reply to "Did anyone else learn "Dot Math" growing up? If not, how were you taught to add and subtract? "

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[quote=Anonymous][quote=Anonymous]Op here -- Ok, sounds like pure memorization is the way to go.

Yes, "Touch Math" sounds identical to "Dot Math" -- would've been 1982/83 for me too!  I was terrible in math (still am) and I still rely on the damn dots. I never thought to blame dot math, just thought it was me. I will officially stay away from teaching them to my kids! [/quote]

OMG me too!  I would have been in 1st grade in 1983 and I remember those dots!

I was great in math but could never do mental math accurately.

I think the way to teach addition/subtraction is to start with "what makes 10".  You want kids to totally internalize the number pairs that make 10.  1 and 9, 2 and 8 and so on.   They should have these rock solid -- totally automatic.   There are lots of ways to drill the associations down -- using 10 frames, using dominoes, using manipulatives and counting, using an abacus, etc.

Once they have those facts down, you do doubles.   2+2 3+3 and so on.   Of course each time they learn a number fact, you practice it many ways:   2+ ___ = 4       2+2 = _____

After they have all the 10 facts and the doubles facts you teach +1 fcts and +2 facts... called "counting on".  Usually pretty easy.

Then you teach double plus 1 facts.   If you know 6+6 = 12, then 6+7=13.

That gets you most of the facts to 20 and then you just use the 9s trick for the 9 facts and then you are almost done.

Except for the tough ones:   7+5, 8+4, 6+8,  7+4[/quote]

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