If you need a place to practice applying the order of operations this is it. A nice feature here is that you can click on the answer and also see a step-by-step listing of how to correctly solve each problem.

Exercises are provided for practice with multiplying rational expressions containing variables.

Discussion of the farming styles of various Mesoamerican Indians, at the bottom of the page is a discussion of the Incan terrace farming system.

Formulas and illustrations show the different kinds of angles created by intersecting tangents, secants, radii, and in combination.

The lesson discusses sequences. Students learn about finite sequences, infinite sequences, and sequences with patterns. The resource consists of class notes, calculator tips, examples, and practice problems with solutions. The teacher...

The lesson discusses sigma notation and series. Students learn about strategies to find an expression for a sequence or series. The resource consists of class notes, calculator tips, examples, and practice problems with solutions. The...

Students learn about the binomial theorem. The tutorial includes class notes, calculator tips, examples, and practice problems with solutions. The teacher resource investigates the origins of the binomial theorem.

The mathematics tutorial explores exponential expressions and equations. The lesson consists of class notes, calculator tips, examples, and practice problems with solutions. The teacher resource includes an activity that discusses...

The mathematics tutorial explores quadratic inequalities. The lesson consists of class notes, calculator tips, examples, and practice problems with solutions. The teacher resource includes a worksheet on matching graphs with equations.

The assessment includes 20 multiple choice questions that investigate patterns and functions. Solutions with explanations are included.

This site explains the history of communism throughout the world. Looks at the principles of Marxism and communism, Karl Marx, and major communist political victories around the world.

Four examples (with increasing difficulty) of Venn diagrams are given. Solutions are provided along with explanations and diagrams showing how the answers were derived.

As a resource for teachers, an activity of how to connect Venn Diagrams with the five methods of proving triangles congruent - SSS, SAS, ASA, AAS, HL - is explained.

This tutorial on signed numbers features lesson plans, practice pages, examples, application problems, and interactive work. Teacher resources include overhead manipulatives, card games, a Bingo game, and graphing calculator downloads.

Please excuse my dear Aunt Sally. This sentence takes on greater meaning when students realize it will assist them in remembering the all-important order of mathematical operations. A lesson plan, several interactive practice pages, and...

The rules for how to simplify radicals and how to perform the operations of adding, subtracting, multiplying, and dividing radicals are explained. A multiple-choice interactive quiz is provided for the students to test their knowledge of...

Provides an easy to understand overview of the Biochemical processes, disease, and feedback mechanisms of homeostasis.

The practice exercises review scientific operations including converting to and from scientific notation, multiplication, and division.

A good resource offering lessons, animations, slide shows, example exams, and facts covering basic physics topics: mechanics, electricity & magnetism, energy, waves, and modern physics.

This site provides a small definition of Kirchhoff's Second Law as well as illustrations & animations that show how this law works.

Dealing with very small or very large numbers can be tedious. Scientific notation helps simplify the process and this tutorial teaches students scientific notation with multiple examples, practice problems, calculator tips, and two...

Resource for earth science review, with the following topics covered: composition of the Earth, mapping, rocks and minerals, weathering, and earthquakes. Includes a collection of online quizzes, review materials, old exams, and references.