Triangular Pyramid

Students of class VI , Cambridge International DAV Pushpanjali  worked in pairs  to make straw sticks  by threading a piece of string through a straw leaving 10cm from either side and secured the string with a tape and then tied 5 sticks of the same length together to make two triangles.Students add 6 th stick of the same length to the two triangles to make four triangles.Students visualised it as  tetrahedron or triangular prism composed of four triangular faces, six straight edges and four vertex corners.This activity gave hand on experience  to the students.