Our guides are filled with activities to help children build math skills. These guides explain how to use Pattern Blocks, Percents and Pre-Algebra concepts. All written by mathematician/professor/authors. Information on how to place your order by fax or by telephone. Product Numbers: AM1152 (Grades K-3), AM1162 (Grades 4-6), SR0860 (Grades 5-8), AM1230 (Grades 4-7), AM1241 (Grades 6-9)