![]() If you know the whole total and one of the parts, you subtract the part you know in order to find the other part. If you know the value of both parts, you can add them up to get the whole. It is a trick well worth learning, no matter what math program you use.Īll Singapore math bar models descend from one very basic diagram showing the inverse relationship between addition and subtraction. Instead, Singapore math teaches students to draw pictures (called bar models or math models or bar diagrams) that make the solution appear almost like magic. But this problem is for students who have not learned algebra yet. ![]() ![]() One might approach it with algebra, writing an equation like: How can we teach our students to solve complex, multi-step story problems? Depending on how one counts, the above problem would take four or five steps to solve, and it is relatively easy for a Singapore math word problem. If there were 48 magic swords, how many pieces of treasure did she sort in all? 60% of the remainder were potions, and the rest were magic swords. One fourth of the items she sorted was jewelry. Let’s play around with a middle-school/junior high word problem:Ĭimorene spent an afternoon cleaning and organizing the dragon’s treasure.
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