National Council of Teachers of Mathematics
Nctm: Figure This: Gone Fishing (Pdf)
Use your algebraic reasoning to solve this math challenge that explores the relationship between quantities and weights. Try this math challenge from the NCTM Math Challenges for Families series. Also, discover how mastering this skill...
National Council of Teachers of Mathematics
Nctm: Figure This: Bar Codes
An exploration of the binary system using U.S. postal zip codes. Discover what numbers the long and short bars in a zip code represent in this one page activity from the NCTM Math Challenges for Families collection.
National Council of Teachers of Mathematics
Nctm: Figure This: Vcr
This resource presents an interesting challenge for the serious mathematician with strong reasoning skills. Explore proportional reasoning, probabilities, fractions, and ratios in this challenge to figure out if you always get six hours...
National Council of Teachers of Mathematics
Nctm: Figure This: Access Ramp
So, you're interested in becoming a civil engineer, builder, or landscaper? Then you'll need to sharpen your skills in measuring slope. Try this math challenge where you will discover how to measure the steepness of an incline.
National Council of Teachers of Mathematics
Nctm: Figure This: Which Is Worth More, a Smile or a Frown?
Solve for the value of the smiles and frowns to find out how much a smile is worth, in this activity. A challenge that focuses on number sense, number combinations, and unknowns. Included are examples of how this skill is applied in real...
National Council of Teachers of Mathematics
Nctm: Figure This: Do Women Live Longer Than Men?
Use this site to figure out if women really do live longer than men. A math challenge taken from today's health journals that explores data collection, data analysis, patterns, and graphing skills. Learn how mastering these skills can be...
National Council of Teachers of Mathematics
The Math Forum: Suzanne Alejandre: Pirate Diamond Activity
An interesting small-group activity that will engage middle schoolers in problem solving, reasoning, and communicating their mathematical thoughts with eachother. The materials needed for the project and the steps the teacher should...
National Council of Teachers of Mathematics
The Math Forum: Archive of Cabri Resources
This Math Forum site is a page that is linked to Cabri sites. Cabri is a geometry software package. The sites include lesson plans, lessons, and more.
National Council of Teachers of Mathematics
Nctm: Slam Ball
[Free Registration/Login Required] Angles and symmetry are reviewed in this learning game. Students try to identify high-scoring paths by slamming the ball off the sides of the game board and send it on a path that collects the most tokens.
National Council of Teachers of Mathematics
Nctm: Illuminations: Adjustable Spinner
An interactive game for learning theoretical vs experimental probability.
National Council of Teachers of Mathematics
Nctm: Illuminations: Coin Box
An interactive game involving coins to learn basic money skills such as counting money, making change and identifying coins of different denominations
National Council of Teachers of Mathematics
Nctm: Illuminations: Algebra Tiles
This resource is about factoring linear and quadratic expressions in one variable, evaluating them at a given value of the variable, multiplying factors to find the expanded form of the expression, and solving linear and quadratic...
National Council of Teachers of Mathematics
Nctm: Illuminations: Okta's Rescue
It is an interactive game to learn counting and graph a number on the number line
National Council of Teachers of Mathematics
Nctm: Illuminations: Fraction Models
An interactive game to learn fractions less than one, greater than or equal to 1, which are written as mixed numbers and their equivalent decimal and percentage forms
National Council of Teachers of Mathematics
Nctm: Illuminations: Geometric Solids
An interactive game to find number of edges, surfaces and vertices of different geometric shapes.
National Council of Teachers of Mathematics
The Math Forum: Paper Folding Activity
This is a lesson plan of paper folding as a method of proof. A Java applet version of the activity can be accessed, giving the actual lengths and angle sizes.
National Council of Teachers of Mathematics
The Math Forum: Intro to Fractions for Primary Students
This site from the Math Forum is a series of lesson plans with great ideas and an excellent Web site that uses virtual manipulatives with students.
National Council of Teachers of Mathematics
Nctm: Factor Game
Fun math game tests your factoring ability.
National Council of Teachers of Mathematics
Nctm: Bobbie Bear
Help Bobbie Bear make different outfits using different colored shirts and pants.
National Council of Teachers of Mathematics
Nctm: Ten Frame
Play these four games to practice counting and adding to twenty.
National Council of Teachers of Mathematics
Nctm: Illuminations: Isosceles Triangle Area
Explore when an isosceles triangle obtains its maximum area.
National Council of Teachers of Mathematics
Nctm: Illuminations: Area of Trapezoids
Investigate how changes in the base and height of a trapezoid affect its area.
National Council of Teachers of Mathematics
Nctm: Illuminations: Tessellation Creator
Interactive tool creates patterns to cover the screen using regular polygons.
National Council of Teachers of Mathematics
Nctm: Illuminations: Dynamic Paper
Need a pentagonal pyramid that's six inches tall? Or a number line that goes from -18 to 32 by 5's? You can create all those things and more.