Sensorial Materials allow for individual repetition and work. It allows children to clasify their sensorial impressions in an organized, orderly, and scientific manner.
Using the materials composed of pearls, children adds, subtracts, multiplies, and divides the concrete quantities. Beads materials range from a single unit to lines of tens, squares of hundreds, and blocks of thousands.
Language materials provide a step by step development of language for children. They experience the motor co-ordination used for writing and discover that words are composed of sounds, which can be made visible through symbols.