Learning Resources In the Garden Critter Counters (Set of 72). These modern, colourful counters are a great way to liven up maths activities. Ideal for developing counting skills, sorting and patterning, these soft rubber counters are wipe clean – perfect for hands-on use. Counters feature six different insects in six different colours (green, purple, red, orange, blue and yellow). Set of 72 bug themed counters comes in a handy storage tub and includes an activity guide. Counters measure 6cm L. Suitable for ages 3+