 Teaching methods that emphasize "basic skills" tend to be compatible with traditional education rather than student-centered standards based education reform.Materials that are primarily marketed to homeschoolers such as Saxon math and Modern Curriculum Press are based on emphasis on basic skills.Such curricula typically require much less teacher training, less expensive and smaller books, and do not require purchasing expensive expendable materials such as scissors, paste, paint, beads as is required by reform mathematics curricula such as Investigations in Number, Data, and Space.