• 23 Kits
• 1 Photos, Drawings, Prints

• 19 Study and teaching (Elementary)
• 14 Audio-visual aids
• 9 Study and teaching
• 7 Study and teaching (Primary)
• 4 Activity programs
• 4 Decimal system
• 4 Fractions
• 4 Mathematical recreations
• 3 Dice in mathematics education
• 3 Games in mathematics education
• 3 Logic
• 3 Numeration
• 2 Arithmetic
• 2 Counting
• 2 Metric system
• 2 Pattern perception
• 2 Place value (Mathematics)
• 2 Study and teaching (Preschool)
• 1 Abacus
• 1 Addition
• 1 Block building (Children's activity)
• 1 Blocks (Toys) in mathematics education
• 1 Charts, diagrams, etc
• 1 Decimal fractions

• 9 Learning Resources (Firm)
• 5 Creative Publications, Inc
• 4 Didax, Inc
• 3 Invicta Plastics
• 2 Suntex International, Inc
• 1 Chen, Sandra, 1981-
• 1 Crystal Springs Books (Firm)
• 1 Cuisenaire Company of America
• 1 Delta Education (Firm)
• 1 Johnson, Beverly, 1952-
• 1 Komarc, Marilyn
• 1 Pelletier, Marc
• 1 Philograph Publications
• 1 SI Manufacturing
• 1 Sales, Christie
• 1 Sales, Jeffry
• 1 Saskatchewan Internet News Ltd
• 1 Selchow & Righter
• 1 Sherman, Sheldon G
• 1 ThinkFun Inc

• 34 English
• 1 Unknown

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