National Council of Teachers of Mathematics
Nctm: Figure This: Radar Bills
Have you seen a radar bill lately? Explore number patterns, number combinations, and probability in this math challenge that examines serial numbers on U.S. bills. A one page activity from the NCTM Math Challenges for Families series.
National Council of Teachers of Mathematics
Nctm: Figure This: Pigeonhole Principle
What is the possibility that another student in your school will have your exact same initials? Try this math challenge using logical reasoning and the "Pigeonhole principle," to discover how this could actually happen. An engaging...
Other
Estadistica
In Spanish. Overview of statistics and related concepts. Gives explanations, sample formulas and examples, as well as exercises for students to try (with link to solutions.)
Oswego City School District
Regents Exam Prep Center: Set Builder and Interval Notation
Use this lesson, practice exercise, and teacher resource when planning instruction on sets and interval notation. Offers simple definitions and examples, an eleven-question online quiz, and a .pdf worksheet for students to complete while...
Other
Utah St. Univ.: Coin Tossing Applet
An interesting Applet that simulates the toss of a coin 100 times. A quick count of the results and an accompanying graph make this site useful for both teacher and student.