### Steven E. Landsburg

Communication over quantum channels would allow superposition of messages, so games in which players use such channels would allow superposition of strategies. The author looks at a game theory whose strategy spaces allow such quantum moves.

(pp. 394)

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### Anthony Ralston

The author reviews the contributions of research mathematicians in K-12 mathematics over the past decade and gives his assessment of positives and negatives.

(pp. 403)

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