Fun Math Problems for Grades 9-12
SITE | DESCRIPTION |
Critical Thinking Books and Software | Critical Thinking Books & Software Company has a variety of applications for problem solving . A free puzzle is offered for classroom teachers, so that they may preview some of the material that is offered. The current puzzle is a logic problem under the description "Mind Benders". |
Interactive Mathematics Miscellany and Puzzles | Offering a variety of math problems, this page - by Alexander Bogomolny - is a wonderful resource for educators. There are several different types of problems to choose from, including: games and puzzles, arithmetic and algebra, geometry, probability, and many more. |
Mrs. Hoffmann's Math Puzzles | Mrs. Hoffman has provided her visitors with selections of math puzzles that are categorized from easy to hard problems. The "easy" section contains a riddle that requires logical thinking. Under the "medium" category, she offers a more difficult logic problem, whereas the "hard" category contains a complex logic problem. In all three categories, there are options to receive help and check the answer. |
Problem of the Week Contest | This page offers a "problem of the week" to any level of student. The exercise on this page is a challenging geometry problem dealing with angles inside of a triangle. The University of Mississippi has created this contest page. |
The Casio Classroom - High School Challenge | Sponsored by Casio Calculators, this page - by the University of Central Florida - provides its visitors with a chance to win a calculator, if a correct answer is submitted. The exercise on this page is problem dealing with ratios, that is geared toward the high school level. |
Math Magic | The "puzzle of the month" on this page is a sequence problem that requires the visitor to study a pattern in a sequence, and then make conjectures about it. The problem then asks for a proof of the conjecture. A visitor then has the opportunity to submit an answer. Answers for current problems are posted the following month. This is a great site by Erich Friedman. |
DIJIT Consulting - Engineers for Life | Two brain teasers, created by a company called Dijit Consulting, require problem solving techniques in order to find the solutions, are offered on this page. The first is a cryptic multiplication problem and the second is math riddle dealing with mathematical operations. |
Weekend Edition Sunday Puzzle | The current challenge on this page, given by Will Shortz, is a problem in statistics and probability. Another challenge is offered on the same page which deals with pyramid words. There are also several links to connect to other puzzle tournaments and championships. |
Math Archive | This site, by Kirill Safarov, provides a variety of different math problems. The problems are categorized as: common sense, physics, numbers, knights & knaves, logic, probability, miscellaneous, geometry, solids in 3D, and very hard. Toward the middle of this page, there is also a link to find problems of the week. |
Math Puzzle | The math puzzle of the week on this page is a problem that focusses on prime numbers, maps and problem solving. Given only one puzzle on this page, there are links to other math puzzle pages for the visitor to explore. The puzzles on this site were created by Ed Pegg Jr. |