In the figure below, lines l and m are parallel lines. What can you say about the areas of triangle ABC and triangle ADC? The distance between two parallel lines is equal at any point, so the two triangles have the same altitude (can you see why?). Further, the two triangles have a common base, […]

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# Yearly Archives: 2017

## Online Peer Review with Canvas

I’ve been really busy in the past months due to my studies. In this post, I am going to share to you one platform that I have learned in one of my courses. One of the platforms that we used in one of my courses this trimester that might interest teachers is Canvas. Canvas is an […]

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## An Alternative Algorithm for Subtraction

In the previous posts, I have shared to you an alternative algorithm for multiplication and division. In this post, I am going to share with you a different algorithm for performing subtraction. This algorithm does not involve “borrowing” from a higher place value but subtracts individual digits. To illustrate this algorithm, let’s consider some examples. […]

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