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 Selected Sites by Level High School Student Center (ages 14-18) Selected Internet links for high school students: projects, activities, sites, and software to help make math fun! High School Teachers' Place Selected Internet resources for high school teachers: lessons, activities, sites, and software for your classroom. Adult Education Selected Internet resources for adult education teachers: GED information, organizations, and adult numeracy sites to help in your classroom. Because there are so many items at this level, we also recommend a search within the high school level, using the math topic or grade level menus to narrow down your results.

All Sites - 6997 items found, showing 1 to 50
 0! = 1 - Math Forum, Ask Dr. Math FAQ Why does 0! = 1 ? ...more>> '05 Annual Performance Review: Albert Einstein - Peter Norvig This parody of human resources formalities imagines how Albert Einstein's supervisor at the Bern Patent Office might evaluate his on-the-job performance. "This is a patent office, Albert.... Where does it say that your priorities are rewriting the rules ...more>> 0.9999 = 1 - Math Forum, Ask Dr. Math FAQ Why does 0.9999... = 1 ? An answer adapted from the sci.math FAQ. ...more>> 0 to 0 power - Math Forum, Ask Dr. Math FAQ In calculus, 0^0 is an "indeterminate form"; in some cases we think about it as having one value, and in other cases as having another... ...more>> \$1000 High School Calculus Student Award (Math Chat) - Frank Morgan, MAA Online Solution to the challenge: Justin Smith calls 5939 a "right" prime because it remains prime after dropping any number of digits from the right: 5939, 593, 59, and 5 are all prime. How many right primes are there less than 1000? Is there a largest right ...more>> \$1000 Math Chat Book Quest (Math Chat) - Frank Morgan, MAA Online Solution to the challenge: On a beach in Oregon, at a certain moment, the very last bit of the Sun disappears below the horizon. The question is: Can I make that last bit of Sun reappear by jumping up quickly to my full height, or perhaps by very quickly ...more>> 100s and 1000s - Horsham Primary School; WimmeraNet An Internet project from Horsham, Victoria, Australia. Activities about 100s and 1000s, a Wimmera Global Classroom project coordinated by Ian Clough at Horsham 298 to recognize the beginning and end of a century and a millennium. Contributions are added ...more>> The 101questions Blog - Dan Meyer A blog "to perplex my students, to put them in a position to wonder a question so intensely they'll commit to the hard work of getting an answer, whether that's through modeling, experimenting, reading, taking notes, or listening to an explanation." Look ...more>> 101 Uses for the Quadratic Equation - Chris Budd, Chris Sangwin Article on the value of the quadratic equation, in response to critics calling it a torture inflicted on schoolchildren. ...more>> 10 Lessons in Fractals, Complex Patterns, and Chaos - Jon Lee; Math Forum Teacher Exchange From the Wright-Connection 8-week summer program, in which Dayton, Ohio, middle and high school math and science teachers participated in the real-world applications of math and science at Wright-Patterson Air Force Base. The lessons, which emphasize ...more>> 10th Grade Math Assignments - Richard Briston A math teacher designs Web pages to serve as monthly math assignments, and as an introduction to the Internet and e-mail for his students at St.Mildred's-Lightbourn School in Oakville, Ontario, Canada. Student solutions are included for some assignments. ...more>> 10ticks.co.uk - Fisher Educational Ltd Games, puzzles, and help aimed at the National Numeracy Strategy of the United Kingdom. National Curriculum Compliant maths worksheets for teachers. Registration required. ...more>> 1-1tutor - Synergy Education International Pvt. Ltd This online tutoring service engages students with VoIP communication and an interactive whiteboard. 1-1tutor also offers "overnite solution" homework help; certification programs for pre-primary and primary teachers; school adoption programs; and more. ...more>> 125 Questions: What Don't We Know? - Science Magazine Science celebrated its 125th anniversary with a look forward at the most compelling puzzles and questions facing scientists today. Accompanied by reader's forums and other online extras, this free news feature explores 125 big questions that face scientific ...more>> 12 coins problem - Frans Faase A classic math puzzle: given a balance scale and 12 coins, one of which is counterfeit and weighs less or more than the other coins, determine the counterfeit in 3 weightings, and tell if it is heavier or lighter. Extensions to other cases and the general ...more>> The 14 Different Types of Convex Pentagons that Tile the Plane - Ed Pegg, Jr. Diagrams of the 14 types, sources, and links to related pages on the Web. ...more>> The 15 Most Famous Transcendental Numbers - Cliff Pickover Numbers like e = 2.718..., pi = 3.1415..., and 2^(sqrt 3) are transcendental. These numbers are not the solutions of polynomial expressions having rational coefficients. The digits of pi and e never end, nor has anyone detected an orderly pattern in their ...more>> 17Calculus Concepts, examples, videos, and practice problems to help students better understand the concepts of precalculus, single variable calculus, multi-variable calculus, and differential equations. Formerly known as MathZar. ...more>> 17GoldenFish - Nathaniel Highstein Blog by a high school math teacher and college art teacher. Posts, which date back to April, 2013, have included "Math, Art Education, and Risk-Taking," "Triangle Centers and Student Empowerment," "'First Past The Post' And The Dreaded Disease 'Z,'" "Mountain ...more>> 1996 Puzzle - Ruth Carver, Math Forum For students in grades 3-12 with a general knowledge of mathematics. Using the digits in 1996 and any operations, try to write equations that have the numbers from 0 to 100 as the answer. The answer for each number and the name of the first person to ...more>> 1997 Puzzle - Ruth Carver, Math Forum For students in grades 3-12 with a general knowledge of mathematics. Using the digits in 1997 and any operations, try to write equations that have the numbers from 0 to 100 as the answer. The answer for each number and the name of the first person to ...more>> 1998 Puzzle - Judy Brown, Math Forum For students in grades 3-12 with a general knowledge of mathematics. Use the digits in the year 1998 and the operations +, -, x, ÷, sqrt (square root), ^ (raise to a power), and ! (factorial), along with grouping symbols, to write expressions for ...more>> 1999 Laptop Learning Challenge (LLC) - Toshiba/NSTA This challenge rewarded 20 K–12 educators for their innovative uses of laptop computers. The 20 selected lessons may be browsed by subject (abstracts and downloadable PDF files are provided); they have science, mathematics, and technology components and ...more>> 1999 Puzzle - Judy Brown, Math Forum For students in grades 3-12 with a general knowledge of mathematics. Use the digits in the year 1999 and the operations +, -, x, ÷, sqrt (square root), ^ (raise to a power), and ! (factorial), along with grouping symbols, to write expressions for ...more>> 1ucasvb's lab - Lucas Vieira Diagrams and animations from a longtime contributor to Wikipedia's math and physics articles. Posts, which date back to February 2013 and feature graphics coded in POV-Ray and PHP, include "Experimenting with sound: the polygonal trigonometric functions ...more>> 2000 Puzzle - Judy Brown, Math Forum For students in grades 3-12 with a general knowledge of mathematics. Use the digits in the year 2000 and the operations +, -, x, ÷, sqrt (square root), ^ (raise to a power), and ! (factorial), along with grouping symbols, to write expressions for ...more>> 2001 Puzzle - Judy Brown, Math Forum For students in grades 3-12 with a general knowledge of mathematics. Use the digits in the year 2001 and the operations +, -, x, ÷, sqrt (square root), ^ (raise to a power), and ! (factorial), along with grouping symbols, to write expressions for ...more>> 2002 Puzzle - Judy Brown For students in grades 3-12 with a general knowledge of mathematics. Use the digits in the year 2002 and the operations +, -, x, ÷, sqrt (square root), ^ (raise to a power), and ! (factorial), along with grouping symbols, to write expressions for ...more>> 2003 Puzzle - Judy Brown For students in grades 3-12 with a general knowledge of mathematics. Use the digits in the year 2003 and the operations +, -, x, ÷, sqrt (square root), ^ (raise to a power), and ! (factorial), along with grouping symbols, to write expressions for ...more>> 2004 Mathematics Puzzle - Judy Ann Brown For students in grades 3-12 with a general knowledge of mathematics. Use the digits in the year 2004 and the operations +, -, x, ÷, sqrt (square root), ^ (raise to a power), and ! (factorial), along with grouping symbols, to write expressions for ...more>> 2005 Mathematics Puzzle - Judy Ann Brown For students in grades 3-12 with a general knowledge of mathematics. Use the digits in the year 2005 and the operations +, -, x, ÷, sqrt (square root), ^ (raise to a power), and ! (factorial), along with grouping symbols, to write expressions for the ...more>> 2006 Mathematics Puzzle - Judy Ann Brown For students in grades 3-12 with a general knowledge of mathematics. Use the digits in the year 2006 and the operations +, -, x, ÷, ^ (raised to a power), sqrt (square root), and ! (factorial), along with grouping symbols, to write expressions for the ...more>> 2007 Mathematics Puzzle - Judy Ann Brown For students in grades 3-12 with a general knowledge of mathematics. Use the digits in the year 2007 and the operations +, -, x, ÷, ^ (raised to a power), sqrt (square root), and ! (factorial), along with grouping symbols, to write expressions for the ...more>> 2009 Mathematics Puzzle For students in grades 3-12 with a general knowledge of mathematics. Use the digits in the year 2009 and the operations +, -, x, ÷, ^ (raised to a power), sqrt (square root), and ! (factorial), along with grouping symbols, to write expressions for the ...more>> \$200 Double Bubble New Challenge (Math Chat) - Frank Morgan, MAA Online Challenge: This open problem appears as Conjecture 4.10 in "Component bounds for area-minimizing double bubbles," by Cory Heilmann, Yvonne Lai, Ben Reichardt, and Anita Spielman (NSF "SMALL" undergraduate research Geometry Group report, Williams College, ...more>> 2010 Mathematics Puzzle For students in grades 3-12 with a general knowledge of mathematics. Use the digits in the year 2010 and the operations +, -, x, ÷, ^ (raised to a power), sqrt (square root), and ! (factorial), along with grouping symbols, to write expressions for the ...more>> 21st Century Educator - David Wees Wees serves as the learning specialist for information technology at Stratford Hall (Vancouver, BC). His blog posts, which date back to November, 2008, have included "Creating a WiiMote interactive white board at my school for under \$50," "Eight Videos ...more>> 21st Century Problem Solving - Howard C. McAllister Examples of problems solved using reliable problem solving methods; discussion of the principles of reliable problem solving; a FAQ; and an evolving encyclopedia of solved problems in mathematics, physics, and chemistry. The main focus is on pre-college ...more>> 21st Century Teachers Network (21CT) - The McGuffey Project A joint undertaking by several leading education organizations to encourage, recognize, and support educators who are developing skills in new technologies and using them in innovative ways with students and colleagues. This initiative is in support of ...more>> 22nd Annual AMATYC Conference (Mathematics Archives) - John St. Clair, Editor Presentations and contributed papers on mathematics education, improving quantitative literacy, multimedia in the classroom, real-world activities and applications, and more, from the proceedings of the Twenty-Second Conference of the American Mathematical ...more>> The 24 Game - Suntex International Inc. A site showing all the editions, challenge rules, tips, hints, and more about the 24 Game. Designed for all ages, play proceeds by creating the number 24 from the four numbers on a game card using addition, subtraction, multiplication, or division. Watch ...more>> 24HourAnswers.com, Inc. - 24HourAnswers.com, Inc. Emailed answers to questions and homework problems, online tutoring, and a section of free SAT math prep packets: 30 highly-focused skill packets with answer keys and level of difficulty for each problem. ...more>> 24 Theory This "hobby website" offers JavaScript that calculates, enumerates, and displays all distinct solutions and solvable scenarios to the popular arithmetic card game, as well as interactive tables. 24theory.com also provides an online version of the 24 game ...more>> 2 Pi Productions - Jake Scott Instructional math rap includes the original songs "Triangle Experts," "Special Right Triangles," "Graphing Trig Functions," "Quadratic Formula," and "The Best Pythagorean Rap Ever." Lyrics include "The cosine is sine with a phase shift of pi/If you think ...more>> 30 Days of Problems for 30 Years of High School Math Competitions - Anne Arundel Community College Thirty problems and their answers from high school math competitions held at Anne Arundel Community College during the past 30 years. ...more>> 30 Second Challenge: The Fun Way to Learn Mathematics - Norman D. Lock e-Books (PDF format) that provide an entertaining approach to developing mental arithmetic skills. ...more>> 3.1415926... - TWO-N, INC. This visualization of the first four million decimal digits of π shows each of the digits 0-9 as a different colored pixel. Slide the navigator down to see the numeric "snow" representing the digits 500,001 through 4,000,000; search for any number ...more>> 360 Degree Math - Sean Kavanaugh "What if there was a way to make the thinking of each student visible to the teacher throughout the lesson?" 360 Degree Math classes begin with the teacher personally greeting each student as she enters the classroom ("The Exchange"); students solving ...more>> 39 ERIC Citations for Block Scheduling - Catholic University of America These citations are divided into the following categories: Research Reports for Block Scheduling; Identifiers (ERIC controlled vocabulary term); Title Phrase; Free Text Phrase; and Copernican Plan. Directions for ordering ERIC journals and documents cited ...more>> 3Blue1Brown - Grant Sanderson Video explanations that elucidate with computer animations, changes in perspective, humor, and — occasionally — rhyming voice-over: Euler's formula, circle division (disjoint regions obtained by joining n points around a circle), and complex ...more>>
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