National Council of Teachers of Mathematics
Nctm: Figure This: Thirteen? Oh No! (Pdf)
If you're superstitious you may want to try this math challenge. Test your reasoning and number sense skills by finding out if there is a Friday the 13th every year. Discover how understanding number patterns and reasoning can be helpful...
National Council of Teachers of Mathematics
Nctm: Figure This: Double or Not
Is "time money"? See if you can figure out exactly how much your time is worth. Explore the concepts of number patterns, time, and money in this one-page activity from the NCTM Math Challenge for Families series. Find out why mastering...
National Council of Teachers of Mathematics
Nctm: Figure This: Upside Down (Pdf)
What lowercase letters read the same both upside down and right side up? If you have the answer, then you can handle this geometric symmetry math challenge. A one-page activity from the NTCM Math Challenge for Families collection....
National Council of Teachers of Mathematics
Nctm: Figure This: Don't Fall In
Have you ever wondered why manhole covers are round? Believe it or not, there is a logical, mathematical reason. See if you can figure it out in this NCTM Math Challenge for Families activity. A one-page activity with suggested life...
National Council of Teachers of Mathematics
Nctm: Figure This: Popcorn (Pdf)
If you're a popcorn lover, you might want to take this math challenge. A real-world challenge on visually estimating volume of popcorn containers. A one page activity from the NCTM Math for Families collection. Life skill applications...
National Council of Teachers of Mathematics
Nctm: Figure This: Beating Heart
Do you know how long it takes your heart to beat 100 times? Test your estimation and number sense skills with this problem-solving challenge. A one-page activity taken from the NCTM Math Challenges for Families Collection. Hints and...
National Council of Teachers of Mathematics
Nctm: Figure This: Line Up!
Take the math challenge. Can you figure out how long you have to wait in line to buy a ticket? An estimation and time measurement challenge from the NCTM Math Challenges for Families collection. Based on real-world themes and...
National Council of Teachers of Mathematics
Nctm: Illuminations: Scale Factor
The interactive applet allows learners to explore the relationships between side length, area, and perimeter. Students see how changes in the scale factor influence the ratio of areas and perimeters. [Requires Java.]
National Council of Teachers of Mathematics
Nctm: Illuminations: Proof Without Words Completing the Square
Students use this computer applet to visualize the concept of completing the square.
National Council of Teachers of Mathematics
Nctm: Illuminations: Mirror Tool
This interactive tool helps student visualize symmetry. The exploration provided by the site helps students explore reflective symmetry. [Requires Java.]
Other
Wisconsin Mathematics Council, Inc.
Open to "anyone interested in mathematics education in Wisconsin," the organization's site provides information on the goals, board of directors, membership, jobs, scholarships and awards available, and resources (e.g., videos and...
Other
Association of Math Teachers of New York State (Amtnys)
The AMTNYS includes information about the organization, its membership and publications, regional and summer meetings, and scholarships and awards. Its e-mail discussion lists allows members to talk about their concerns.
National Council of Teachers of Mathematics
Nctm: Illuminations: Circle Area
Explore what the relationship the radius has to the area of a circle. Click the instructions to learn how to use this interactive resource and select"Exploration" for more ideas.
National Council of Teachers of Mathematics
Nctm: Figure This: Does Drinking Soda Affect Your Health?
Try this "Real world," challenge taken directly from the today's health journals. Use your problem solving, data analysis, and number sense skills to figure out if soda intake among teenage girls is related to incidences of broken bones....
National Council of Teachers of Mathematics
Nctm: Illuminations: Pan Balance
A pan balance helps students visualize what value for x will make two expressions equivalent. The computer applet graphs the lines and shows the intersection point.
National Council of Teachers of Mathematics
Nctm: Illuminations: Geometric Solids
The instructional tool explores various geometric solids and their properties. Student can manipulate and color the different shapes. Learners examine the edges, faces, and vertices of the different solid figures.
National Council of Teachers of Mathematics
Nctm: Illuminations: Pan Balance Shapes
Use this virtual, double pan balance and explore what shapes and amounts of shape balance each other. Great introduction to beginning algebra concepts.
National Council of Teachers of Mathematics
Nctm: Illuminations: Volume of a Cube
"The volume of a cube can be developed by considering unit cubes, a single row (longs) of unit cubes or a single layer (flats) of cubes using this applet." This easy software makes it possible to easily construct a cube and take it...
National Council of Teachers of Mathematics
Nctm: Illuminations: Mars Earth Orbit Computer Activity
Students will use this applet to form and test hypothesis of what the orbit of Mars will look like relative to Earth. [Requires Java.]
National Council of Teachers of Mathematics
Nctm: Illuminations: Shape Cutter
This computer tool allows students to compose and decompose shapes by making cuts and rearranging the pieces. The tool has an exploration section for learning exercises.
National Council of Teachers of Mathematics
Nctm: Illuminations: Line of Best Fit
Use this applet to learn about a line of best fit for a set of data points. Some example data in this site include statistics from the 2004-2005 LA Lakers season. Students can guess the equation for a set of data points before the applet...
National Council of Teachers of Mathematics
Nctm: Figure This: Misaddressed Mail
Try this probability challenge from the NCTM Math Challenges for Families series. See if you can figure out the probability of putting three checks in the correct envelopes without looking. Also, discover how probability skills are used...
National Council of Teachers of Mathematics
Nctm: Figure This: Census
Try this real world challenge that focuses on data collection, data analysis, and problem solving with information from the U.S. Census Bureau. Discover how these skills are applied in real life situations in this one page activity from...
National Council of Teachers of Mathematics
Nctm: Figure This: Body Mass What's Your Index? (Pdf)
If you like tackling formulas, then this math challenge is for you. See if you can calculate Helix's BMI (body mass index) and find out if his health is at risk. A one page NCTM Math Challenges for Families activity that engages learners...