Thursday, July 18, 2013

Math problems of the week: 4th grade Everyday Math vs. Singapore Math

I. The final decimals problem set in the 4th grade Everyday Math Student Math Journal "Decimals and Their Uses" chapter [click to enlarge]:


II. The final decimals problem set in the 4th grade Singapore Math Primary Mathematics Workbook "The Four Operations of Decimals Chapter" [click to enlarge]:



III. Extra Credit:

What higher-level thinking opportunities do Singapore Math students lose out on by not being prompted to reflect on their feelings about decimals?

4 comments:

Auntie Ann said...

How about this answer for EM Reflection problem #3:

"This question is the hardest, because I'm good at doing actual math--it's easy and fun! but I suck at writing and don't enjoy it at all. Can't we do more math in math class?"

Speculative Speculum said...

No kidding. lol SM any day.

Auntie Ann said...

From the rising-6th grader's summer math packet:

Find 65% of 100.

The question was so stupid, that the kid kept asking 65% of what?? Knowing that they couldn't possibly be asking for 65% of 100! That would be stupid!

That wasn't the end of the problem though, for the complete question was:

Find 65% of 100. Explain your answer.

He has no idea how to explain such a mind-bogglingly simple problem. "They give you a really easy question, and then make it impossible!" he said.

Katharine Beals said...

Astounding, Auntie Ann! And--"They give you a really easy question, and then make it impossible!"--very well said!

I will add this to my collection. Thanks for sharing.