Includes sample diagrams. (SP)

The author presents a variation of a tiling problem where each row or column contains a complete set of elements, each diagonal is free of contiguous like elements, and at least one partition exists. These restrictions limit the number of solutions considerably, and methods of solution are subsequently discussed. (CT)

Describes a variety of methods for enlivening biology teaching, including games, simulations, puzzles, debates, and unusual assignments. (EB)

Presented are several word and sentence puzzles, both simple and complex, for student use. All involve various-shaped grids made up of squares for letter or word fill-ins. (Author/SJL)

Supports and give examples of adding visual aids to problem-solving activities in language classroom through which teacher will inject a recreational element into learning process, foster verbal learning, and stimulate communicative interaction. (Author/BK)

Describes a calculus review game based on the popular game show "Wheel of Fortune." (Author/NB)

Describes how using the familiar "Magic Triangle" puzzle with a class of 4th grade students contributed to the development of a supportive mathematical community. (Author/NB)

Provides a crossword puzzle for social studies students. Offers clues based upon early Canadian history. Invites teachers to submit their own puzzles. (SG)

Presents four puzzles for mathematics classrooms. Recommends that recreational mathematics should be incorporated into the standard curriculum as a way to interest young students in the wonders of mathematics. (ASK)

Four activities consisting of puzzles are introduced, which help students to recognize the strength of algebraic generalizations. They also assist them to comprehend algebraic concepts, and enable them to develop their individual puzzles and games.

CAPTCHAs are images used on the internet by companies that want to block computer programs from their site. This article presents a method for solving some of these puzzles.