Browse Books! Montessori spoke of children having “explosions” into reading and writing. After children in a Montessori classroom learn all the sounds of letters with the Sandpaper Letters, and have extensive practice making words with the Movable Alphabet, they will spontaneously synthesize what they know, and—to their own delight!—they can read. With books that pique their interests, children will become fluent readers almost effortlessly.