This video explains lines of symmetry of 2D shapes including triangles, quadrilaterals and regular polygons. Practice questions are at the end of the video.

This video explains what pentominoes are and provides four pentominoes puzzles and solutions. A great activity to develop your problem solving skills!

This video explains what area is and how to calculate the area of a rectangle or square. The video uses a reversed task style of teaching. Practice questions are at the end of the video.