National Council of Teachers of Mathematics
Nctm: Illuminations: Bobbie Bear's Vacation Outfits
Help Bobbie Bear figure out how many outfits he could make with his shirts and pants. He can have up to 5 shirts and 4 pants. Figure out all the possible combinations.
National Council of Teachers of Mathematics
Nctm: National Council of Teachers of Mathematics
The National Council of Teachers of Mathematics website contains a wealth of resources for teachers, students, and parents. NCTM standards, organizational information, conferences, publications, and online sources are highlighted.
National Council of Teachers of Mathematics
Nctm: Illuminations: Tube Viewer Simulation
A computer simulation of viewing through various lengths of tubes at different distances. The simulation also has an exploration of focus questions. [Requires Java.]
National Council of Teachers of Mathematics
Nctm: Illuminations: Pan Balance Numbers
Use this tool to find out if expressions are equal to each other. If the pan balance levels out then the expressions are equal.
National Council of Teachers of Mathematics
Nctm: Illuminations: Flowing Through Mathematics
Students will use this computer applet to simulate water running out of a tube. By varying the tube diameter and noting time changes and the height of the water in the tube students will create a formula to fit the curves of height...
National Council of Teachers of Mathematics
Nctm: Illuminations: Codes
This is a computer based program that allows students to understand basic cryptography which utilizes transformations of shifting and stretching. Students may encode their own message and see it graphically.
National Council of Teachers of Mathematics
Nctm: Illuminations: Cube Nets
Interactive site where students find which nets are able to form a cube.
National Council of Teachers of Mathematics
Nctm: Illuminations: Cutting Corners
Students will use their knowledge of plane figure attributes to create and view shapes by cutting and rotating shapes to stimulate discussions on names and attributes of various shapes they do not regularly encounter.
National Council of Teachers of Mathematics
Nctm: Illuminations: Fraction Game
Students use their knowledge equivalent fractions and their ability to compare fractions to play this computer based game.
National Council of Teachers of Mathematics
Nctm: Illuminations: Igd: Area of a Rectangle
Use this interactive tool to learn how to find the area of a rectangle. Click on "Instructions" for details on how to use this tool. Click on "Explore" for more ideas.
National Council of Teachers of Mathematics
Nctm: Illuminations: Adjustable Spinner
An adjustable spinner to provide random spins of a computer based spinner for any mathematical experiment requiring random spins.
National Council of Teachers of Mathematics
Nctm: Figure This: Math Challenges for Families
Students, teachers, and parents alike will enjoy this challenging math site. It contains a clever brain teaser section plus creative problems related to algebra, geometry, measurement, numbers, statistics, and probability. A Spanish...
National Council of Teachers of Mathematics
Nctm: Illuminations: State Data Map
Data can be displayed in a variety of ways. This interactive map of the United States shows data by degrees of color. Choose to display data such as: land area, population, population density, gas use, and much more.
National Council of Teachers of Mathematics
Nctm: Standards for School Mathematics
This standards-based NCTM website offers resources for teachers of mathematics for all grade levels, including interactive math tools, lesson plans, online resources, and the like.
National Council of Teachers of Mathematics
Nctm: Illuminations: The Product Game
In the Product Game, young scholars start with factors and multiply to find the product. There are four parts to this investigation.
National Council of Teachers of Mathematics
Nctm: Illuminations: Computing Pi
This resource investigates approximating the value of pi through the calculation of perimeters of inscribed or circumscribed polygons. The interactive tool allows learners to examine and compare both methods.
National Council of Teachers of Mathematics
Nctm: Illuminations: Shape Tool
This resource will help students better understand polygons. The shape tool allows users to create and manipulate different types of polygons.
National Council of Teachers of Mathematics
Nctm: Figure This: Math Challenges for Families
NCTM offers sections on Families & School, Families & Math, Families & Homework, and more. Has links to brain-teaser problems ranging in skill from very easy to challenging. Click Take a Challenge or Challenge Index for...
National Council of Teachers of Mathematics
Nctm: Illuminations: Volt Meter
As you put the different type of batteries on the volt meter pay attention to the voltage equations in the table. See how positive and negative numbers interact.
National Council of Teachers of Mathematics
The Math Forum: Nctm: Ask Dr. Math: Binomial Theorem by Induction
Question-and-answer page about a proof of the Binomial Theorem by induction.
National Council of Teachers of Mathematics
The Math Forum: Nctm: Ask Dr. Math: Zeros of Polynomials
Math Forum offers an example of how to find the zeros of a polynomial equation.
National Council of Teachers of Mathematics
Nctm: Illuminations: Diagonals to Quadrilaterals Ii
This resource explores the bisectors of quadrilaterals. The interactive tool allows learners to draw quadrilaterals with perpendicular bisectors, congruent perpendicular bisectors, and congruent bisectors.
National Council of Teachers of Mathematics
Nctm: Illuminations: Diagonals to Quadrilaterals I
This resource explores the diagonals of quadrilaterals. The interactive tool allows learners to examine intersecting line segments in a variety of ways. Topics discussed are perpendicular diagonals, congruent diagonals, and bisected...
National Council of Teachers of Mathematics
Ntcm: Math Challenge: Perplexing Percentages
Test your bargin shopping skills by figuring out which discount offers the greatest savings. A one page activity from the NCTM Math Challenges for Families series that focuses on understanding and calculating percentages. Connections...