3. Demonstrating Understanding of Congruence

Students will demonstrate their understanding by creating images that illustrates congruence. They will also need to 'explain' why the images they created are congruent.

Part (I): Using Photo Booth to demonstrate understanding

By selecting the relevant effects in Photo Booth, students take photos of their faces or objects that they think would illustrate "Congruence".

For example: The original object


Using Photo Booth, students take pictures that illustrates congruence through various effects:

Example 1: Using the "Mirror" effect

Example 2: Using the "Pop Art" effect



Part (II): Using Number to explain their understanding

Using the square grids (created with Number), students 'explain' why the pictures they take illustrate "Congruence".

1. Students will insert the images into a Number template.

2. Using the gridlines (in Print View), they show the congruence within each image by positioning the image such that the grid line divides into into 2 equal halves (reflection) or into 4 quadrants where all the images are exactly the same (identical replicates).


3. Using the grid, students are able to count and describe that the corresponding sides of the image are of the same shape and size.

4. Students could choose one of the images to be posted in the class blog (coupled with illustrations) to share with their peers.

  • Riding on the same platform, students could questions to clarify if they do not agree with the images and explanations submitted by their peers.