Friday, December 14, 2012

Math problems of the week: 5th grade Investigations vs. Singapore Math

I. The 6th problem set in the 5th grade TERC/Investigations Student Activity Book "Measuring Polygons" unit [click to enlarge]:

II. The 6th problem set in the Singapore Math Primary Mathematics 5A Workbook "Perimeter, Area and Surface Area" unit [click to enlarge]:

III. Extra Credit

What are Singapore Math 5th graders missing out on by not spending time classifying shapes?


Auntie Ann said...

They're missing out on nostalgia for 2nd grade.

Rivka said...

My daughter just had the square-rhombus-rectangle stuff at the beginning of third grade math.

(Can't help noticing, by the way, that whoever did that Singapore page got 1a wrong. The triangle has an area of 9 unit squares.)