Suggests using literature to study geometry and presents activities on the book "Sitting in My Box." (Author/NB)

Presents a variety of activities in which 4th grade students investigate prisms and pyramids by building models from folded paper and drinking straws. (Author/NB)

Presents the Shape Search problem to develop student visualization. Focuses attention on the National Council of Teachers of Mathematics (NCTM) Geometry Standard. (Author/NB)

Presents mathematics activities focusing on explorations in the environment that include visual or geometric components. (ASK)

Discusses possible solutions for the problem of determining how many sandwiches were made with specific ingredients that appeared in the March 1998 issue of this journal. (ASK)

Discusses the importance of communicating ideas in teaching any subject. Presents a story about an elementary-level mathematics lesson having to do with space and shape. Suggests that examining the assumptions held by teachers about the content of mathematics and how to communicate mathematics to students is very beneficial. (ASK)

Presents a problem that uses the design show and asks students to find a series of moves to take the design from the top-left corner of a piece of paper to the bottom-right corner while remaining in its original orientation. (ASK)

Presents a problem on counting squares that emphasizes the computation and identification of squares. (ASK)

Uses instructional practices based on the van Hiele model to help students better conceptualize perimeter and area. (ASK)

Uses tangrams and a seven-piece mosaic puzzle to construct triangles, investigate relationships among them, and compare the results from the two puzzles. (ASK)

Emphasizes the importance of children exploring hands-on and minds-on mathematics. Presents a midpoint shape activity for students to explore the midpoint shape of familiar quadrilaterals, such as squares and rectangles. (KHR)

Identifies common misconceptions about polygons. Discusses current practices used to teach geometry to search for the source of misconceptions, and describes ways to help students avoid these misconceptions. (ASK)

Describes an activity in which students use geometry, measurement, estimation, and graphs to create mathematical jack-o'-lanterns using pumpkins carved in the shapes of polygons. (ASK)

Presents a mathematician's reflections on his experiences as a young mathematician in elementary school and at home, including some mathematical moments that sparked his interest in dimensions and mathematical thinking. Also describes his experiences working with K-6 teachers and students. (Contains 17 references.) (ASK)

Presents responses to a question that appeared in the February 1999 Problem Solvers section of this journal about using four isosceles triangles to make different figures. (ASK)