Although the nature of the research varies, as do concepts of angle, research in general supports the supposition that angle is a complex idea, best understood from a variety of perspectives. In fact, the concept of angle tends to be threefold, consisting of: (1) the traditional, static notion of two rays meeting at a common vertex; (2) the idea…

Presents an activity using base-10 blocks and the TI Explorer calculator to help fifth and sixth graders represent their ages in different numerical bases to appear older or younger than their real age. (MKR)

Describes how teachers can present their students with a variety of experiences that promote the thoughtful use of calculators and a positive attitude in students and parents. Discusses using classroom banks, problem solving, writing word problems, holiday catalog ordering, and parent education. Includes sample activity pages. (MKR)