Magic squares are used as exercises in mental calculation and motivated practice in mathematical problem-solving. As such, they can be especially effective teaching tools in the beginning of the school year. When used for addition review, paper-and-pencil media are perhaps most appropriate for magic square work. But if you would rather emphasize the problem-solving aspects of magic square work (play?), some simple Logo tools can assist your students' exploration of these ancient puzzles.
Harris, J. (1989). Mathematical magic on the turtle's BK. Logo Exchange, 8(1), 18-23.