Singapore Math Source

Denise at Let’s Play Math has written up a some fourth grade level multi-step word problems (and provided bar model solutions) based on C. S. Lewis’  The Lion, the Witch and the Wardrobe. She concludes:
…as word problems become more complex, the bar diagrams offer significant help for students who struggle with the question, “What do [...]

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These word problems come from  Practice A in the 5B Standards Edition Textbook (p. 68). This particular practice follows 6 lessons on “Percentage” and “Writing Fractions as Percentages”.  Notice how the challenge  progresses through the 7 problems.

Let’s look at the underlying concepts of each problem:
5.  No computation is needed. “15 out of 100”
6. Variation in [...]

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From Accelerated Learning Primary Mathematics 3 by Ching Kheng Huat published in 1999 in Singapore. Have fun!
1. For both piles to have the same weight, which item belonging to the pile on the left should be exchanged with another item belonging to the pile on the right?

2. Replace the letters with numbers.
TEAR
+EAR
TALE
3. Fill in the [...]

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Rate problems provide some of the biggest challenges to students and adults. These come from Problem-Solving Processes in Mathematics -6 B by Fabian Ng.

At 10:15 am, a car left Town X for Town Y at an average speed of 86 km/h, while a truck left Town Y for Town X at an average speed of [...]

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I had coffee with another fan of Singapore Math this week and he loaned me some supplemental materials from his travels to Popular Books in Singapore. These two problems come from Accelerated Learning Primary Mathematics 3 by Ching Kheng Huat published in 1999.
The front page states:
In this book, “Accelerated Learning” fosters in pupils the ability [...]

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