• 21 MERIT Library

• 19 3-D Objects, Models, Sculpture
• 1 Books

• 11 Mathematics
• 11 Study and teaching (Elementary)
• 4 Study and teaching
• 3 Arithmetic
• 3 Geometry
• 3 Study and teaching (Early childhood)
• 2 Activity programs
• 2 Games in mathematics education
• 2 Metric system
• 2 Study and teaching (Secondary)
• 1 Abacus
• 1 Algebra
• 1 Balances (Weighing instruments)
• 1 Block building (Children's activity)
• 1 Blocks (Toys) in mathematics education
• 1 Color vision in children
• 1 Counting
• 1 Dice in mathematics education
• 1 English language
• 1 Equilibrium
• 1 Exponents (Algebra)
• 1 Foreign speakers
• 1 Form perception in children
• 1 Fractals

• 5 Learning Resources (Firm)
• 2 Suntex International, Inc
• 1 Blue Orange Games Co
• 1 Chou, Chun-Yen (David)
• 1 Chou, Tu-Chuan
• 1 Cuisenaire Company of America
• 1 Delta Education (Firm)
• 1 Denoual, Thierry
• 1 Didax, Inc
• 1 Everyday Learning Corporation
• 1 Fat Brain Toy Company
• 1 Guidecraft (Firm)
• 1 Hawley, Mary K., 1957-
• 1 Johnson, Beverly, 1952-
• 1 Pelletier, Marc
• 1 Philograph Publications
• 1 SI Manufacturing
• 1 Sales, Christie
• 1 Sales, Jeffry
• 1 Sherman, Sheldon G
• 1 ThinkFun Inc
• 1 University of Chicago. School Mathematics Project
• 1 World Class Learning Materials, Inc

• 19 English
• 1 No linguistic content
• 1 Unknown

• 5 Educational games
• 1 Blocks (Building materials)
• 1 Dice
• 1 Dominoes
• 1 Educational toys
• 1 Juvenile literature
• 1 Puzzles and games

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