mothergooseof4 Posted September 5, 2012 Share Posted September 5, 2012 I just bought several levels for fun. Ds is not quite getting addition, subtraction, multiplying, and dividing with opposite signed integers. I have searched the TOCs of LOF Fractions, D&P, PreA 1, and PreA 2, but can't seem to find it. Could be my congested, fuzzy head right now, but my brain can't seem to locate this topic. I just want to see how he presents it so I can perhaps give ds a different perspective. I know it has to be there somewhere because I see negatives used in the PreA books. I just can't locate where it is introduced. Can someone help me? Quote Link to comment Share on other sites More sharing options...
Dmmetler Posted September 5, 2012 Share Posted September 5, 2012 It's really not in there much from what I've seen (DD is at chapter 17 in Pre-Algebra 1, having done Fractions and Decimals/Percents). I'm guessing it's in one of the elementary books and is expected to have been covered as part of the four operations requested as a prerequisite to LoF Fractions. Quote Link to comment Share on other sites More sharing options...
mcmama Posted September 5, 2012 Share Posted September 5, 2012 yeah, I'm betting the earlier books cover this. We've only done a few so far (A-D) but they integrate explanations of some more complicated things even in those, so I'm betting opposite signed integers is covered in these. Quote Link to comment Share on other sites More sharing options...
Chrysalis Academy Posted September 5, 2012 Share Posted September 5, 2012 I just checked the TOC of all the books, from Apples to Pre-Algebra with Biology. The only mention I found? Ch. 4 of Apples, where it talked about temperatures below zero. That's it. :001_huh: Then it's covered in Ch. 2 of Beginning Algebra. (I don't have Pre-A w/ E, so can't speak to that one). Quote Link to comment Share on other sites More sharing options...
mothergooseof4 Posted September 5, 2012 Author Share Posted September 5, 2012 Well at least I am not crazy. I have searched the TOC for all of the books that I have here (Apples, Butterflies, Cats, Fractions, Decimals, PreA 1, and PreA 2), but can't find it. I emailed Mr. Schimdt and will post what he says. Quote Link to comment Share on other sites More sharing options...
mothergooseof4 Posted September 5, 2012 Author Share Posted September 5, 2012 Well, here it is: Adding, subtracting, multiplying, and dividing using negatives numbers is a bit tricky. That's why we hold off doing them until Life of Fred; Beginning Algebra. There is no need to "back up." With my best wishes, Stan Quote Link to comment Share on other sites More sharing options...
Chrysalis Academy Posted September 5, 2012 Share Posted September 5, 2012 Alrighty then!! :D Thanks for posting. Quote Link to comment Share on other sites More sharing options...
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