Thursday, March 27, 2014

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

Two-digit multiplication problems in 4th grade Investigations vs. Singapore Math:

I. From the Investigations 4th Grade Investigations Student Activity Book, Unit 8: How Many Packages? How Many Groups?, Section 1.2 (about 4/5 of the way through the entire curriculum) [click to enlarge]:




II. From the 4th grade Singapore Math Primary Mathematics 4B Workbook, Unit 2: The Four Operations of Whole Numbers, Exercise 12 (about 1/5 of the way through the entire curriculum) [click to enlarge]:




III. Extra Credit:

Which problem set do you think is preferred by the Common Core authors, who emphasize verbal communication across the curriculum over mere calculation?

No comments: