Tenth graders investigate the Pythagorean Theorem. Then they type up a formal paragraph proof of a proof of their choice.

Students write numbers in word form. For this writing numbers in word form lesson, students are shown examples of numbers written out in word form. Then they independently complete a 20-problem worksheet.

Students perform computer simulations on air dispersion. In this chemistry lesson plan, students calculate energy transfer based on specific heat and temperature change. They explain the causes of smog.

This page discusses sets and set theory in mathematics and probability, and it discusses the notation and properties of sets.

This page provides extensive information about sets and bags. Includes descriptive set notation and examples.

Conceptual explanation of set theory and the logical foundations of mathematics. Written clearly and avoids technical notation.

This page gives a brief discussion of the intersection of sets in mathematics and probability.

This page provides a good explanation of unions of sets in mathematics. It discusses the union of disjoint sets and the probabilities of unions, incorporating probabilities of the two independent sets and their intersection. Discusses...