danybug Posted November 30, 2009 Share Posted November 30, 2009 Can I ask your help on how you would explain this word problem to your child? Peter earned $2800. All his money was either spent or saved. He spent 4 times as much as he saved. How much did he save? It would help me to see the variations in how you can solve it. We use Singapore Math. Thanks guys! Quote Link to comment Share on other sites More sharing options...
Truscifi Posted November 30, 2009 Share Posted November 30, 2009 We just started with 1a this year, so I have no idea how SM would say to solve it, but I would divide by 5 (4 parts spent, 1 part saved). Hope that helps. :) Quote Link to comment Share on other sites More sharing options...
A.J. at J.A. Posted November 30, 2009 Share Posted November 30, 2009 We just started with 1a this year, so I have no idea how SM would say to solve it, but I would divide by 5 (4 parts spent, 1 part saved). Hope that helps. :) Singapore would probably use bars to demonstrate what you've mentioned above. Saved: ---- (1 bar) Spent: ---- ---- ---- ---- (4 bars) $2800 = 5 bars. $560 = 1 bar. He saved $560. Barring any mental mistakes, that is how we would approach it. Blessings, Angela Quote Link to comment Share on other sites More sharing options...
NicksMama-Zack's Mama Too Posted November 30, 2009 Share Posted November 30, 2009 We just started with 1a this year, so I have no idea how SM would say to solve it, but I would divide by 5 (4 parts spent, 1 part saved). Hope that helps. :) Early in our SM adventure, I would draw boxes illustrating what we know. Spent 4 times as saved... Spent |----||----||----||----| } total $2800 Saved |----| Then we underline the question and solve by dividing to find value of 1 unit. Quote Link to comment Share on other sites More sharing options...
forty-two Posted November 30, 2009 Share Posted November 30, 2009 Peter earned $2800. All his money was either spent or saved. He spent 4 times as much as he saved. How much did he save?|--Saved--|-------------------Spent----------------------------|[------------][------------][------------][------------][------------] We have one unit of money saved and four units of money spent, for a total of five units of money. The total amount of money is $2800, so five units equal $2800. This means that one unit equals $560. Since Peter saved one unit of money, he saved $560. Quote Link to comment Share on other sites More sharing options...
danybug Posted November 30, 2009 Author Share Posted November 30, 2009 Thanks for the responses. I think the bars will help my son. I kind of feel that some of the various word problem types in Challenging Word Problems were never really accurately explained to my ds prior in the work that he does in the textbook, etc. Thanks for taking the time! Quote Link to comment Share on other sites More sharing options...
calandalsmom Posted November 30, 2009 Share Posted November 30, 2009 I have found the homeschool teacher's guides essential now that my ds is in level 4. Quote Link to comment Share on other sites More sharing options...
Matryoshka Posted December 1, 2009 Share Posted December 1, 2009 I have to say that I have learned so much teaching Singapore math, and I always did very well in math at school. I'm sure that problem would have once had me scratching my head for a while, and now it seems obvious to me that you'd divide $2800 by 5 to get the answer, even without making a bar diagram (others have already drawn them for you :)). Love Singapore math!! Love the bar diagrams. :D Hang in there, it gets easier to figure them out once you get the hang of it! Quote Link to comment Share on other sites More sharing options...
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