In Sheeran and Glynne, we have been exploring properties of 3D shapes and ensured that we deepened our understanding of mathematical vocabulary by building ‘skeleton shapes’ from straws and white-tack.
We were able to reflect on the number of faces, edges and vertices that 3D shapes have through building shapes in pairs. We explored shapes such as a triangular prism, cuboids and hexagonal prisms. Many of us realised that the number of pieces of white-tack that we used to join the straws together were equal to the number of vertices on the shape .
We then recorded the information in a table and many of us were able to find a pattern between the number of faces, edges and vertices. We learned about Euler’s formula and noticed how the difference between the number of edges and the combined number of vertices and faces was equal to 2! Many of us were challenged by the problem solving aspect of the lesson, but enjoyed it nonetheless.