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Line Fitting Using Only High School Algebra.
Peer reviewed Peer reviewed
Staib, John – Mathematics Teacher, 1982
An approach to using the method of least squares, a scheme for computing the best-fitting line directly from a set of points, is detailed. The material first looks at fitting a numerical value to a set of numbers. This provides tools for solving the line-fitting problem. (MP)
Descriptors: Algebra, Algorithms, Mathematical Applications, Mathematical Models
Activities: An Interest in Radioactivity.
Peer reviewed Peer reviewed
Kennedy, Jane B. – Mathematics Teacher, 1996
Presents activities in which students study exponential growth and decay by collecting data, constructing graphs, and discovering algebraic formulas. (MKR)
Descriptors: Algebra, Equations (Mathematics), Exponents (Mathematics), Graphs
Polydrons and Three-Dimensional Geometry.
Peer reviewed Peer reviewed
Woodwars, Ernest; Brown, Rebecca – Arithmetic Teacher, 1994
Presents three hands-on, discovery geometry lessons based on the use of special pieces called Polydrons by a fifth-grade class to build and investigate special properties of polyhedra and to stimulate students to think geometrically. Includes reproducible student worksheets. (MKR)
Descriptors: Algebra, Discovery Learning, Elementary Education, Elementary School Mathematics
A Conceptual Model for Solving Percent Problems.
Peer reviewed Peer reviewed
Bennett, Albert B., Jr.; Nelson, L. Ted – Mathematics Teaching in the Middle School, 1994
Presents an alternative method to teaching percent problems which uses a 10x10 grid to help students visualize percents. Offers a means of representing information and suggests different approaches for finding solutions. Includes reproducible student worksheet. (MKR)
Descriptors: Algebra, Area, Elementary School Mathematics, Elementary Secondary Education