This activity unit provides an example of how the construction and interpretation of graphs can be incorporated into elementary classroom activities. (MP)

An activity unit is described that helps children recognize the inside and outside of closed curves. (MP)

A seven-day unit on probability used an experimental game-oriented approach, which allowed students the opportunity to draw conclusions from experiments in which interest was high. (MP)

This activity unit leads students to discover facts related to the maximum area enclosed by figures with given perimeters. Three worksheets are included. (MP)

Some practical, hands-on ways in which ideas about geodesic domes can be used in secondary school mathematics are described. Instructions for constructing a one-frequency geodesic sphere are given. (MP)

One student's project involved a contest of guessing how many peanuts were in a 100-pound bag. His teacher briefly reflects on the wide range of guesses and students' concept of large numbers. (MP)

Ways that elementary teachers with no background in computers can begin to deal with them are detailed. High school mathematics teachers and parents who work with computers are viewed as invaluable resource people. Samples of activity cards that introduce computers to students and/or teachers are included. (Author/MP)

Five activity lessons are proposed to present applications of probability and to exhibit its use in conjunction with statistics as a major decision-making and problem-solving tool. (MP)

Support of the need for more emphasis on mental arithmetic in the classroom is given. Classroom methods and activities for developing skill in mental arithmetic are included. (MN)