Maths- Symmetry

In maths our new focus it symmetry. When we began maths Edie gave us some toothpicks and blue tack. We had to make 3 Dimensional(3D) shapes out of the toothpicks and we had to count how many faces it had and on our second lesson we had to make one or more of these shapes (the numbers next to them are how many faces the shape had.

tetrahedron= 4
Pentagon= 5
Hexagon = 6
Heptagon = 7
Octagon = 8
Decahedron = 10
Dodecahedron = 12
Here are some/a couple of photos I took on the iPad during maths of some of the shapes I made, I only took photos on the first lesson so they are not exactly my best shapes I have made but they are still pretty good.

On Wednesday the 6th we learnt about vertex, faces and the edges and we learnt that if we have the vertex and face we can guess the edges with this simple equation...

so say we used the Octahedron it has 8 faces and 6 vertex and if you do V(vertex) + F(face) -2 then you get the answer so in case it would be 6 + 8 = 14 - 2 =12 and 12 is your answer so and Octagon has 8 faces 6 vertex and 12 edges.