Sensorial Bag 3 (ME031) is designed to extend stereognostic sense work in the Primary classroom, offering a curated set of objects for children to identify by touch alone without visual input. It supports the refinement of the tactile sense and the child's ability to form mental images of objects, a key developmental bridge to later abstraction. This bag is particularly useful for small group lessons or as a follow-up work after children have already been introduced to the Mystery Bag sequence.