Thursday, September 3, 2009

Math problems of the week: 2nd grade Investigations vs. Singapore Math

1. From the 2nd grade Investigations (TERC) Stickers, "Number Strings and Story Problems" unit, (assigned in late January):

Assessment: Number Strings

Use combinations that you know to solve these problems.
Show your work.

1.
6 + 3 + 4 + 6 =


2.
7 + 5 + 9 + 3 + 5 =


3.
9 + 6 + 7 + 1 =


4.
6 + 8 + 6 + 7 =


2. From the beginning of the 2nd grade Singapore Math workbook, volume 2 (of 2), Primary Mathematics 2B (Standards Edition), p. 17:

1. Add.

(a) 183 + 99 =
(b) 246 + 98 =
(c) 199 + 99 =
(d) 206 + 98 =
(e) 99 + 556 =
(f) 98 + 235 =
(g) 99 + 408 =
(h) 98 + 399 =

3. Extra Credit

Which problem set gives students more freedom and promotes more discovery learning?

No comments: