WERNER W. LIEDTKE
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Popsicle sticks as a manipulative device
THOMAS P, ATKINSON
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Numbo jumbo
SR. MARIE BENOIT
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Simple computing devices for children to build and use
JOAN E. KIRKPATRICK
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What can you do with thumbtacks?
W. GEORGE CATHCART
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Manipulative aids for developing concepts of three-dimensional space
MARY A. BEATON
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Anne Bernadene’s tile
BETH BLACKALL
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The use of attribute blocks: K – XII
JAMES H. VANCE
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Getting the ‘rect’-angle on mathematical activity
THOMAS E. KIEREN
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Toying with TAD
BILL HIGGINSON