Key construct: Equal Stage

IN this article, we look at the Equal Stage key construct. This is introduced in P3, and is used across P4 to P5, and revised at P6.

As usual, our focus is to aid the pupil to get a conceptual understanding first, and only then proceed to decide on a suitable method to solving the problem, as indicated in the Introduction to ThinkingMath.

For the convenience of the parent or educator using Conquer Problem Sums (P3, P4, P5, P6), we have cross-referenced the key construct to sample associated units of the appropriate topics in the book where it is applied.

Equal Stage

The clue is the word "equal". It is important to note that "equal" can refer to the beginning or the end of the story in the problem. As you draw the model, start by reflecting the stage where both had an equal amount.

For further practice and more examples, click on the following:
More samples from Conquer Problem Sums series

Equal Stage Type 1

As in Type 1, begin drawing the model at the stage where both had an equal amount. Here, the equal stage happens at the beginning.

For further practice and more examples, click on the following:
More samples from Conquer Problem Sums series

Equal Stage Type 2

As in Type 1, begin drawing the model at the stage where both had an equal amount. However, here the equal stage takes place at the end.

For further practice and more examples, click on the following:
More samples from Conquer Problem Sums series

Equal stage Type 3

As in Type 1, begin drawing the model at the stage where both had an equal amount. But under Type 3, the transfer takes place between two individuals, whereby one gives to the other.