Thursday, May 2, 2013

Math problems of the week: 6th grade Connected Math vs. Singapore Math

A continuation of last week's problems-- the next pages in the chapters on circles sections of 6th grade Connected Math and Singapore Math:

I. From Connected Math "Going Around in Circles" section [click to enlarge]:



II. From Singapore Math Primary Mathematics 6 Workbook "Circles" chapter [click to enlarge]:



III. Extra Credit

Which problem set better prepares students for algebra and higher-level geometry?

1 comment:

Auntie Ann said...

I think this is probably how I would have answered the Connected question:

1) The radius is 7, squared is 49. Using pi as 3, I estimate: 49 * 3 = 147

2) If pi is 3.1: 49 * 3.1 = 151.9

3) If pi is 3.14: 49 * 3.14 = 153.86

4) If pi is 3.142: 49 * 3.142 = 153.958

5) If pi is 3.1416: 49 * 3.1416 = 151.9384

6) etc. ad infinitum...