If your pupils have been learning to count sides on 2D shapes, we have the ideal challenge to extend their knowledge! This Year 2 Count Sides on 2D Shapes extension worksheet requires children to count and compare the sides of a variety of 2D shapes and complete a comparison statement. Designed to encourage children to work in pairs or small groups, this extension challenge will promote problem solving and reasoning skills, whilst deepening children's understanding of 2D shapes. There are multiple answers to this challenge, but we have included a sample answer as an example.