The Math Forum: Ask Dr. Math: Order of a Proof

This site provides links to questions sent in to Dr. Math about proofs. Topics covered include what proofs are, how to understand them, and how to build them, and much more. Be sure to click on the links which you believe may be helpful.

A student asks Dr. Math for help to understand the concept of direct and inverse variation. The Dr. begins with the very basics and gives a great discussion on variation. The Dr. includes the thinking process and examples.

A student asks Dr. Math how to evaluate a composite function. Dr. Math gives a systematic way to evaluate composite functions. Be sure to read the second response as well to findout how to evaluate functions of several compositions and...

Dr. Math gives an inspiring and clear discussion about equations of lines and lines as functions. The Dr. discusses the benefits of the standard form of a line and prompts the student with an equation which can not be written in the...

This site is an archive of questions posed by students and the general public about geometry which are responded to by "Dr. Math."

A response to an inquiry of how to prove a two column geometric proof problem at the Math Forum. This site gives a description of what a makes a proof and an example of a two column proof.

Dr. Math helps a student see the connection between fractions and ratios using the names of Flintstone characters. A clever approach that requires an understanding of basic algebra concepts.

Three geometric constructions students like to say are "impossible" are explained here. Trisecting an angle, squaring a circle, and doubling a cube are examined as being either possible or impossible, depending on the "rules" you use.

A detailed explanation on how long it will take two trains heading in opposite directions to meet.

This page brings you to a table of contents of three-dimensional figures. Selecting a figure will bring you to a page defining and illustrating the figure with applicable formulas listed.