• 3 MERIT Library

• 3 3-D Objects, Models, Sculpture

• 1 Block building (Children's activity)
• 1 Dice in mathematics education
• 1 Fractals
• 1 Pattern perception
• 1 Symmetry (Mathematics)

• 1 Cuisenaire Company of America
• 1 Johnson, Beverly, 1952-
• 1 Pelletier, Marc
• 1 Sherman, Sheldon G

• 2 English
• 1 Unknown

• 3 Manipulatives (Education)
• 1 Dice
• 1 Educational toys
• 1 Juvenile literature
• 1 Puzzles and games

Limit year range