momsuz123 Posted January 2, 2012 Share Posted January 2, 2012 My dd is doing Math In Focus (Singapore) 3a. We got to the chapter on multiplication of 6,7,8,9. Instead of going through the whole "if 6x5=30, and 6x2=12 then 30+12=42 so 6x7=42", can't she just memorize her multi facts and be done with it? She is someone who just wants to get going. She doesn't like how singapore slows it down this way. Plus, she loves Timez Attack, and we just added Times Tales, so she already knows over half of multi facts anyways. Would it be okay to put the workbook on hold and do heavy math multi facts with Timez Attack, Times Tales, Right Start math games etc? Then come back and do the chapter review to make sure she got it all? Just a thought - what do you think? Thanks. Quote Link to comment Share on other sites More sharing options...
poetic license Posted January 2, 2012 Share Posted January 2, 2012 Well, I memorized my math facts in 3rd grade, but I don't have those Singapore strategies to help me out now that I have forgotten them all. It may be slower the SM way, but it will give a context to the facts and help her remember them when she forgets them. I'm planning to go through and relearn the multiplication tables myself using similar strategies. Quote Link to comment Share on other sites More sharing options...
boscopup Posted January 2, 2012 Share Posted January 2, 2012 I imagine the purpose is to show how multiplication can be done with facts you know if you run into one you don't know. Those examples are easy, but they lead to 6x12 is 72 and 6x3 is 18, so 6x15 is 90. Quote Link to comment Share on other sites More sharing options...
momsuz123 Posted January 3, 2012 Author Share Posted January 3, 2012 Okay, that all makes sense. I guess we will keep plowing through it. Maybe switch it up like was mentioned also. I like that she is actually making great progress and retaining it with her facts, but it makes sense to do it the "singapore way" also now that you wise hive people explained it to me. I knew I could count on you all! Thanks. Quote Link to comment Share on other sites More sharing options...
nansk Posted January 3, 2012 Share Posted January 3, 2012 Maybe you can get her to memorize upto times-12 and then show her how she can extend this using the Singapore strategies. (say) 6 X 19 = 6 X 12 + 6 X 7 Quote Link to comment Share on other sites More sharing options...
kiana Posted January 3, 2012 Share Posted January 3, 2012 Yeah, additionally this is introducing the concept of the distributive law -- i.e. 6(7) = 6(5+2) = 6*5 + 6*2 -- in more general form a(b+c) = ab + ac -- I think the exposure now is really good for later math. Quote Link to comment Share on other sites More sharing options...
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