Thursday, March 15, 2012

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

I. From 5th grade Math Trailblazers Student Guide, Unit 9, lesson 6: Calculator Strategies: Addition and Subtraction of Fractions, final problem set (p. 321) [click to enlarge]:

II. From the 5th grade Singapore Math, Primary Mathematics 5B, Fractions chapter, about half-way through (pp. 58-59)  [click to enlarge]:

III. Extra Credit:

What are Singapore Math students missing out on by never receiving direct instruction in "calculator strategies"?

When it comes to calculator strategies, which is better: direct instruction, or child-centered discovery?

1 comment:

Anonymous said...

Would you mind sending me email so I can correspond with out about something to do with Singapore math?