Teaching Aids Risk J (1 results)

Condition: Nr Fine. 1st printing (presumed). 20 number 'flash' cards of white stiff-stock glossy paper which detail a classroom exercise useful for conveying a certain skill [e.g., Mechanical Drawing] or concept ["A Lucky Throw" - statistics & percentages, using dice throws]. A 21st card (on plain stock), "Suggestions for the Teacher", concludes the set. Cards are illustrated with a representative image [e.g., Dice on "A Lucky Throw"]. 6-7/8" x 5-7/8" Not found on OCLC. All housed in a plastic sleeve (original?).…