Learning Resources Sensory Leaves Math Activity SetThe Sensory Leaves maths Activity Set from Learning Resources is a hands on, tactile way to learn early maths skills. Use our 100% recycled plastic leaf counters to count, sort, and classify leaves by size, number of bugs, leaf texture, and more. The 10 teacher developed, double sized Activity Cards included guide children through basic maths concepts and incorporate activities such as identifying the characteristics of real leaves.