What are constraints and how can they be represented mathematically? This instructional slideshow provides an explanation and an example of how to translate constraints into algebraic inequalities.

After displaying three diagrams showing 1, 1 1/2, and 2 wavelengths, the slide show presents more diagrams and expects pupils to determine the number of wavelengths in each. No labels or explanations are provided, so this would be useful...

Positioned inside the framework of linear and exponential functions, this lesson is more of an investigation into the effects of changing variables and constants inside an expression. The author takes familiar formulas, those for...