Folding to create symmetrical patterns is a popular past-time in schools, but understanding reflective symmetry can be quite tricky. These maths worksheets for year 2 ask children to colour the correct spots on the other side of the line of symmetry to make sure that the shape is symmetrical.
Pegboards are a useful aid to this work, as is a mirror, which can be laid along the line, or axis of symmetry to see how the pattern continues. Watch out for children who just copy the image rather than show the reflection.
More can be found in our year 2, Understanding shape section.