Shapes that tessellate

This task is about identifying if some different shapes will tessellate.
A shape that tessellates can fit together to cover a surface without any gaps.
For example the following pattern show the tessellation of an arrow shape.
tesellating-arrows-red-blue.png

Question Change answer

Put the eight shapes into the correct columns of the table.
Image counting main image

Question 1Change answer

Explain how you worked out if a shape tessellated or not.