The present invention generally relates to a set of blocks and casings that have various features which provide multi-sensory (e.g., visual, auditory, kinesthetic and tactile) input to the user so as to aid the user in learning mathematics, reading, phonetics, matching and other basic skills. Each block includes a number projections on a first face which are equal in number to recesses on second face. The number of recesses or projections on a particular face block signifies to the user a digit corresponding to that block. Additionally, each block is assigned a color which phonetically cues the user to the number corresponding to the block. Similarly, a casing corresponding in size, shape and color is provided for each block. The casings serve similar functions as the blocks. Preferably, both the casings and the blocks have a textured surface to provide tactile input to the user, thereby encouraging the user to use the blocks and take advantage of its multi-sensory features.