James Schultz, Michael Waters
Representation is discussed in the context of solving a system of linear equations. Five representations [concrete, tables, graphs, algebraic, matrices] are viewed from perspectives of understanding, technology, generalization, exact vs approximate solution, and learning style.
Stephen Maurer
In the September 1984 MT, the author made eight Year 2000 predictions about three issues: the role of the computer, the quality of math education, and curricular change. Here's what actually happened!
Annette Leitze, Nancy Kitt
Using homemade tiles, sketches, and the box method to reach a broader group of students for successful algebra learning. A list of concepts appropriate for such an approach is provided.
Alan Lipp
The angles-of-a-star problem [Find the sums of the measures of the angles at the vertices of a five pointed star] is used to show that a good problem may have many correct solutions.
Emeric Noone
State lotto games as a source of problems and exercises for classroom activities, as well as applications of basic probability concepts in a practical setting lead to much greater understanding of the remote chance anyone has of winning a lotto game.