Math Discoveries with Pattern Blocks, Grades 2 to 3Shirley Hoogeboom · First published 1999Open the Tome
Math Discoveries with Pattern Blocks, Grades K to 1Shirley Hoogeboom · First published 1999Open the Tome
Beginning algebra thinking for grades 3-4Shirley Hoogeboom, Judy Goodnow · First published 1994Open the Tome
Primary cooperative problem solving with base ten blocksShirley Hoogeboom · First published 1991Open the Tome