National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Interval Notation
"Dr. Math" provides an explanation on how to express the solution of a conjunction inequality using interval notation.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Fraction Basics
Gives a very basic overview of fractions and their parts. Discusses adding, multiplying, and finding a common denominator.
National Council of Teachers of Mathematics
The Math Forum: Why Does 0! = 1?
Dr. Math describes the reasoning behind 0! = 1.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Age Word Problems
Dr. Math walks you through the necessary steps to solve age problems. Additional examples are included.
National Council of Teachers of Mathematics
The Math Forum: The Birthday Problem
Dr. Math demonstrates how the birthday problem - what are the odds that two people in a room have the same birthday - works. Several links are available for extended investigations of the problem.
National Council of Teachers of Mathematics
The Math Forum: Drexel University: Boy or Girl?
Dr. Math explores the probability of the children in families being boys or girls. A look at the mathematics involved in each situation is included.
National Council of Teachers of Mathematics
The Math Forum: Geometer's Sketch Pad: An Introductory Lesson
This site is a five part tutorial to get started using Geometer's Sketch Pad. The tutorial goes through things such as setting up to install GSP, the tool box, other functions, graphing,and more.
National Council of Teachers of Mathematics
The Math Forum: Pi Day
Need some ideas for Pi Day on March 14th? You can get some great resources at this location. There are all kinds of links available.
National Council of Teachers of Mathematics
The Math Forum: Calculation Tips & Tricks: Multiplication Tips
Find tips for multiplying by 5, 9, and 11, and learn how to solve math problems without a calculator. This site includes explanations and examples for gifted children and teachers wanting to challenge their students.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Building Two Column Proofs
Use this site to find details of how to construct a two column proof. Dr. Math responds to a question posed by a student and details the reasons for the order of steps and shows two different ways to do the same proof.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Order of a Proof
The site gives a diagram of steps to a proof. Dr. Math explains why the step order of a proof is important.
National Council of Teachers of Mathematics
The Math Forum: Fractions in Everyday Life, a Recipe
Math Forum offers this exciting instructional activity to help students with multiplying and dividing fractions through a recipe made in the classroom.
National Council of Teachers of Mathematics
The Math Forum: Pascal's Triangle and the Ice Cream Cones
Dr. Math explains how Pascal's triangle can be used to determine the possible combinations of ice cream cones that can be made with different numbers of flavors. His response also includes an explanation using combination functions.
National Council of Teachers of Mathematics
The Math Forum: Teacher 2 Teacher
This site allows users to search or browse the archives of discussions, ask a question, and discuss math education with colleagues in the Teachers' Lounge. This site has numerous inputs to all types of math education related insights.
National Council of Teachers of Mathematics
The Math Forum: Math Ideas for Science Fair Projects
Math Forum provides a list of possible math science fair topics with links to each topic to get an idea of what will be studied and suggested questions to answer. This site also contains links to teacher discussions on Math Fairs.
National Council of Teachers of Mathematics
The Math Forum: Crystals: Crystallography & Systems
This is an exploration of polyhedron and may be used as a lesson plan. The site contains links to various crystals that are formed as polyhedron, and links to creating your own paper polyhedron. Other exciting related links on polyhedral...
National Council of Teachers of Mathematics
The Math Forum: Math Magic
Comprehensive site of MS Word files that are easy to download which increase problem solving skills using technology in the classroom.
National Council of Teachers of Mathematics
The Math Forum: Math Magic
Comprehensive site of MS Word files that are easy to download which increase problem solving skills using technology in the classroom.
National Council of Teachers of Mathematics
The Math Forum: Exploring Pascal's Triangle
Contains lessons and activities on Pascal's Triangle at three levels: elementary, intermediate, and advanced.
National Council of Teachers of Mathematics
The Math Forum: Fermi Questions
This tutorial from the Math Forum provides the approach to problem solving made famous by Enrico Fermi. Fermi, a brilliant Italian physicist, used estimation frequently in problem-solving.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Pascal's Triangle and Binomial Expansions
This Math Forum author shows how combinations can be used to identify the pattern in Pascal's Triangle.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: 3 D Distance
"Ask Dr. Math" is posed with a question of finding the distance between a point and line in space. Read about the solution.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Long Division of Polynomials
This site is a help letter from a student asking how to divide polynomials. The response to this e-mail also discusses factoring as a method for doing the division.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Solving a Ratio With & Without a Diagram
A student is searching for a solution to a ratio question without using a diagram. Dr. Math helps to break it down both with and without a diagram. An understanding of fractions, multiplication, and basic algebra is necessary to get this...