2D shape worksheet for any age group, I used this with kindergarten students.
It would be good to have as a spare worksheet if you were called in for a substitute.
It matches the australian curriculum outcomes
MAe-2WM (uses objects, actions, technology and/or trial and error to explore mathematical problems) &
MAe-15MG (Manipulates, sorts and describes representations of two dimensional shapes including circles triangles squares and rectangles, using everyday language).