Math - Brighter Child Workbooks Author:Vincent Douglas Grades 1–8 • If you've been looking for a math book that combines math skills practice and fun, this is it! Guaranteed to motivate even the least excited math student. Organized by the NCTM Content Standards. Reproducible. 8 1/2 x 11 (25.1cm x 28cm). 48 pages.128 pp.