scrapbookbuzz Posted December 12, 2012 Share Posted December 12, 2012 My daughter is stuck on decimals and percentages. I'd really like her to get this down before we move on to Pre-Algebra. If her math brain could keep up with her science brain, we could have made it to Chemistry by now. However, we are not there. She really wants to work in the science field so percentages ARE important to understand. It took her awhile to get multiplication down, too, but she DID get it, eventually. I'm hoping that's the case here. However, I'd also like to know how I might help her. We were in Life of Fred but have now gone back to TT7 just for help with review. I don't get percentages either, truthfully, unless they're even numbers! Any suggestions? Quote Link to comment Share on other sites More sharing options...
Trish Posted December 12, 2012 Share Posted December 12, 2012 Key to Decimals and Key to Percents series. Cheap, thorough, takes it step by step. You can do the booklets selectively depending on problem areas. Quote Link to comment Share on other sites More sharing options...
Freckles Posted December 12, 2012 Share Posted December 12, 2012 I don't know if I can explain this memory trick clearly or not, but I will try. Example: % changed to a decimal. I ask my student how many circles are in the percentage sign. 2 are in the sign... this is how many spaces we will move to the left to place the decimal. 190% becomes 1.9 2% becomes .02 Changing the decimal to percentage you remember the percentage sign has two circles and you move right towards the end of the number where the symbol will go. .435 becomes 43.5% 9.67 becomes 967% This probably doesn't help a bunch, but it helped me and my kids. Quote Link to comment Share on other sites More sharing options...
dbmamaz Posted December 12, 2012 Share Posted December 12, 2012 key to series is often recommended for specific topics like that. you could also try something like the murderous maths book on it, as a general conceptual introduction, or other 'living math' books from the library about them? Quote Link to comment Share on other sites More sharing options...
Crimson Wife Posted December 12, 2012 Share Posted December 12, 2012 What about the Math Mammoth "blue" worktexts Percents and Decimals 2? I really like Maria Miller's explanations. Quote Link to comment Share on other sites More sharing options...
scrapbookbuzz Posted December 12, 2012 Author Share Posted December 12, 2012 Thank you all for your great suggestions! Freckles73, that just helped ME! :) Quote Link to comment Share on other sites More sharing options...
letsplaymath Posted December 12, 2012 Share Posted December 12, 2012 I have a couple of blog posts in my archive that you might find helpful: Percents: Key Concepts and Connections Percents: The Search for 100% Quote Link to comment Share on other sites More sharing options...
Janice in NJ Posted December 13, 2012 Share Posted December 13, 2012 http://www.khanacademy.org Peace, Janice Enjoy your little people Enjoy your journey Quote Link to comment Share on other sites More sharing options...
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