What type of program is Alpha Byte Critters© Letter Sizing?

Alpha Byte Critters Letter Sizing is a perceptual-motor strategy that correlates letter size with corresponding animals: a giraffe for tall letters, a turtle for short letters, and a monkey tail for long letters that go under the line. Students, such as some with autism, who have difficulty with concepts related to perceptual sizing for letter formation, can increase success forming their letters when given a visual, familiar reference.