• 8 MERIT Library

• 5 3-D Objects, Models, Sculpture
• 1 Photos, Drawings, Prints

• 3 Audio-visual aids
• 2 Abacus
• 2 Logic
• 2 Pattern perception
• 1 Block building (Children's activity)
• 1 Dice in mathematics education
• 1 Fractals
• 1 Manipulatives (Education)
• 1 Study and teaching (Elementary)
• 1 Symmetry (Mathematics)

• 2 Invicta Plastics
• 1 Creative Publications, Inc
• 1 Cuisenaire Company of America
• 1 Educational Teaching Aids (Firm)
• 1 Johnson, Beverly, 1952-
• 1 McGraw-Hill Book Company
• 1 Minnesota Mining and Manufacturing Company
• 1 Pelletier, Marc
• 1 Sherman, Sheldon G

• 7 English
• 1 Unknown

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