G.U.M.

Grammar, Usage, and Mechanics That Really Stick!

G.U.M. offers a fresh new way to teach students the grammar, usage, and mechanics skills important for successful writing. Short, 2-page lessons focus on one skill at a pop. Lots of practice helps you make sure that instruction really sticks. The program offers:

  • Self-directed instruction and practice
  • Concise, easy-to-follow lessons
  • Flexibility—complements any curriculum


     Grade 2

     Grade 3

     Grade 4

     Grade 5

     Grade 6

     Grade 7

     Grade 8