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...
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: The Distributive Property
Dr. Math responds to a letter written by an eight grader concerning the Distributive Property. He uses good examples to strengthen his explanation.
National Council of Teachers of Mathematics
Nctm: Illuminations: Fraction Models
Numerator values can be set for 0-20. Denominator values restricted to 1, 2, 4, 5, 8, 10 and 20. Use this interactive tool to show a fraction. Adjust both the denominator and numerator and see a visual representation as a part of a...
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Determining Triangle Similarity
Dr. Math responds to a question about how to determine if two triangles are similar. The Dr. goes into detail about the process and gives several examples that are worked out for you.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: The Value of Two Column Proofs
This site explains why we prove things. The explanation gives real world scenarios and an everyday example of why we should learn how to prove things.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Graph of Circle as a Function
Dr. Math, in a reply to a student question, describes how a circle can be a function.
National Council of Teachers of Mathematics
The Math Forum: Changing Equations to Slope Intercept Form
This takes you through a step-by-step example of how to change a linear equation into the slope-intercept form.
National Council of Teachers of Mathematics
The Math Forum: Graphing Linear Functions
Use this guide to practice graphing linear functions using Claris Works with your students. The lesson walks you through the process of setting up Claris Works step-by-step.
National Council of Teachers of Mathematics
The Math Forum: Nctm: Ask Dr. Math: Stem and Leaf and Scatter Plots
This site is a question/response page which focuses on stem-and-leaf representation and how to construct scatter plots. Dr. Math works through an example and gives commentary notes. Site also contains links for more help.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Solving Inequalities
This site goes through steps to graph an inequality posed by a student.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Solving Linear Inequalities: Picture a Number Line
Dr. Math presents a visual (graphical) approach to solving a conjunction inequality.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Squaring Pennies
A cute story about exponential growth.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Partial Fractions
Math Forum offers a description of remainder and factor theorem and gives and example of their uses.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Expanding Binomials and Pascal's Triangle
This Math Forum site explains how expanding binomials relates to Pascal's Triangle.
National Council of Teachers of Mathematics
The Math Forum: An Introduction to Parabolas
"Dr. Math" wonderfully discusses the basics of parabolas. He identifies where in our lives we would see parabolas as well as mentioning some of the terminology associated with them. A link is provided for information on conic sections.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Parabola Equation
Dr. Math, in a reply to a student's question, describes how to obtain the equation of a parabola.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Graphing Parabolas
Dr. Math helps a student with the plotting and with finding the vertex and line of symmetry of a parabola.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Parabola
Dr. Math, in a reply to a student's question, explains how to find the location of the vertex and focus, calculate the distance between the focus and vertex, as well as identify the axis of symmetry and the directix.
National Council of Teachers of Mathematics
The Math Forum: Golden Ratio, Fibonacci Sequence Faq
This site contains questions and answers regarding the Golden Ration and how the Fibonacci numbers relate to the ratio of lengths of golden rectangles. Related links are available at the end of the site.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Cake Recipe Ratio
Dr. Math has to go into the kitchen to solve this real-world problem. A student is looking for a solution to a ratio problem about baking a cake. You'll need to stir up your knowledge of ratios, fractions, decimals, proportions, and...
National Council of Teachers of Mathematics
The Math Forum: Introduction to Odd and Even Numbers
The question is asked about how to introduce the concept of odd and even numbers to young learners. Math Forum experts help out by suggesting a teacher-tried overhead activity that culminates with an odd and even party where students...
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Direct and Indirect Variation
Dr. Math addresses the difference between direct and indirect variation. The Dr. gives several examples through his explanation, using real-world scenarios. The Dr. describes how problems are typically stated for indirect variation and...
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Teaching Composition of Functions
Dr. Math gives several suggestions for teachers when helping students understand the concept of composition of functions.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Composite Functions
Dr. Math explains a common mistake made by students with compostion of functions. Dr. Math goes through an example problem of function composition with a short explanation.