Arithmetic by design /
Jacobs, Russell F.
Phoenix, Ariz. : Jacobs Pub. Co.,
©1996.
Employs a "search and shade" geometric concept that lets the student both create an artistic design and receive reinforcement for correct answers.
Employs a "search and shade" geometric concept that lets the student both create an artistic design and receive reinforcement for correct answers.
Arithmetic
Arithmetic
Arithmetic
Mathematics
Arithmetic.
Arithmetic
Arithmetic
Mathematics.