Thursday, August 14, 2008

Math problem of the week: 4th grade MathLand vs. Singapore Math

1. From the beginning of MathLand's Grade 4 Skill Power (p. 11):


Write the Answers

  19    17   20
+63   +63 +63
----- ----- -----


Which addition problems did you complete first?
Did you use that exercise to solve the others?  If so, how?

-----

True or False?

You can write a true equation using these 3 numbers.

36, 3, 12

----------

2. From the beginning of Singapore Math Primary Mathematics 4A (p. 18):

Find the number represented by each n.

(a) 29,000 + n = 41,000 (b) n + 24,000 = 70,000
(c) 54,000 - n = 33,000 (d) n - 16,000 = 24,000
(e) 40,000 x n = 3000  (f) n x 5 = 40,000
(g) 15,000 ÷ n = 3000   (h) n ÷ 8 = 7000

-----------

Extra Credit

Which problem set involves more higher level thinking, and which one more spoon feeding by authority figures?

No comments: