National Council of Teachers of Mathematics
Nctm: Figure This: Bowl Em 'Over
Does he have a chance? In this math challenge, estimate Helix's chances of winning the bowling tournament.
National Council of Teachers of Mathematics
Nctm: Figure This: Glide Ratio
How far can you fly a paper airplane? Math challenge provides practice in comparing quantities.
National Council of Teachers of Mathematics
Nctm: Figure This: Japanese Floors
How do I cover thee? Let me count the ways. The challenge is to figure out in how many ways can the Tatami mats be arranged to cover the floor.
National Council of Teachers of Mathematics
Nctm: Figure This: Statue of Liberty
Is the Statue of Liberty's nose too long? Challenge is to figure out the length of the Statue of Liberty's nose by knowing the length of her arm.
National Council of Teachers of Mathematics
Nctm: Figure This: Salaries
Use the information from the U.S. Census to determine if women will ever earn as much money as men.
National Council of Teachers of Mathematics
Nctm: Figure This: Tern Turn
Math activity challenges you to figure out how fast an Arctic tern can fly around the world. How long would it take to fly from the Arctic to the Antarctic and back?
National Council of Teachers of Mathematics
Nctm: Figure This: Play Ball
Make a table to figure out if a baseball valued at $3000 in 1927 is worth more than a baseball valued at $3 million in 1999. Which is a better investment?
National Council of Teachers of Mathematics
Nctm: Figure This: Which Way?
Math activity challenges you to determine how many different ways there are to get to your destination.
National Council of Teachers of Mathematics
Nctm: Figure This: Decorating Boxes
How do you print a ribbon on a box? The challenge is to figure out which of the patterns can be folded into a box with an orange ribbon printed all the way around it?
National Council of Teachers of Mathematics
Nctm: Illuminations: Drug Filtering
This lesson plan from Illuminations looks at exponential decay using the example of how kidneys filter blood.
National Council of Teachers of Mathematics
Nctm: Illuminations: One Grain of Rice
A lesson plan to use with the book One Grain of Rice by Demi including an activity sheet to help learners work the math Rani used to trick the raja into giving rice to the village.
National Council of Teachers of Mathematics
Nctm: Thats Interesting
Read this word problem and solve the questions that follow. An extra challenge and an answer check are also provided.
National Council of Teachers of Mathematics
Nctm: Illuminations: Proof Without Words: Completing the Square
Use this interactive geometric proof to complete the square using geometry.
National Council of Teachers of Mathematics
Nctm: Illuminations: Pan Balance Expressions
Using this interactive tool, you can practice arithmetic and algebraic skills, and investigate the important concept of equivalence.
National Council of Teachers of Mathematics
Nctm: Illuminations: Okta's Rescue
Count the correct number of Oktas (a cartoon octopus) and send them down the chute in this fun game that lets you practice counting and grouping on three different levels of difficulty.
National Council of Teachers of Mathematics
Nctm: Comparing Properties of the Mean and Median
Through the use of technology, students can investigate how the mean and median of a set of date compares when values the data changes.
National Council of Teachers of Mathematics
Nctm: Illuminations: Mean and Median Box and Whisker Plotter
A computer applet that will draw any box and whisker plot with student's data input.
National Council of Teachers of Mathematics
Nctm: Figure This: Movie Money
Do movie theaters make lots of money? You can find out when you try this math challenge that explores profit and loss in the theater industry. Discover why understanding problem solving, percent, and basic calculations are essential in...
National Council of Teachers of Mathematics
Nctm: Figure This: Visualizing
Is seeing believing? Explore visualizing and spatial reasoning with three dimensional shapes in this challenge from the NCTM Math Challenge for Families collection. Discover why visualization is essential skill in real world situations.
National Council of Teachers of Mathematics
Nctm: Figure This: The Race [Pdf]
A challenge that combines skills in problem solving and logical reasoning. See if you can figure out who will win the race by determining the rate of speed of each runner. A one page activity from NCTM Math Challenges for Families...
National Council of Teachers of Mathematics
Nctm: Figure This: A Shard or Two
Archaeologists have just uncovered an ancient plate. They need your help to determine the original size of the plate. Try this challenge where you use concepts of symmetry and estimation to uncover the solution. An activity from the NCTM...
National Council of Teachers of Mathematics
Nctm: Figure This: Does It Make a Difference Where You Shop?
A math investigation that uses scatter plots to compare prices of favorite soft drinks. Discover how valuable your skills in organizing and displaying data can be in real life scenarios.
National Council of Teachers of Mathematics
Nctm: Illuminations: Bar Grapher
A computer applet that will draw any bar graph with student's data input.
National Council of Teachers of Mathematics
The Math Forum: Multicultural Math Fair: Sonya's Symmetry
Straightforward lesson designed to introduce students to symmetry and reflection using MIRA mirrors. Includes two worksheets--instructions and activities are available in English and Spanish.