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 Semple Math - Stevenson Learning Skills Do you count on your fingers to add and subtract? Using a sequence of images, songs, rhymes, stories, associational clues, and other mnemonics to teach and build learning, Semple Math is a mathematics program for beginning, high-risk and/or remedial students ...more>> Sheppard Software Software for SAT, GRE, math, and more, including: Algebra - One On One (covers 21 functions), License Plate Math (puzzles for ages 9 and up), Brain Builder - Math Edition (over 500 million puzzles), Math Function Mania (a multimedia game for grades 7-12 ...more>> Significant Figures/Digits - Math Forum, Ask Dr. Math Common Question A selection of answers to questions about scientific figures and scientific digits, such as "When are zeros significant and when are they not significant?" ...more>> Sine of the Times: Dividing the Universe by Zero - Colin Graham A collection of thoughts on math by an "eternal student" with an "eclectic educational background." Posts, which date back to June, 2010, have included "Creative ways of integrating more water in the body," "My first online manipulative -- virtual origami," ...more>> Sketchpad Activities for Young Learners: Grades 3-5 - Nathalie Sinclair This collection of activities for grades 3-5 offers examples of the ways in which Sketchpad can be used across the range of mathematical subject areas in the elementary curriculum. ...more>> Slope, Slope-Intercept, Standard Form - Math Forum, Ask Dr. Math Common Question A selection of answers to questions about the slope of a line, and about the slope-intercept and standard forms of the equation of a line, such as "Why are the slopes of perpendicular lines negative reciprocals?" and "How would I draw the line y = (2/3)x ...more>> Softmath - Neven Jurkovic Developers of Algebrator, an automated tutor based on Maxima CAS that provides step-by-step solutions to algebra, trigonometry, and statistics problems, and exports answers to MathML. Demo and purchase Algebrator; use Softmath's free online software to ...more>> The Solar System and Space Technology - Eddie B. Rose Jr. - Yale-New Haven Teachers Institute A unit that presents a modularized, individualized problem-solving scientific/mathematics packet that can be adapted for grades K-12. The contents focus on space exploration and its relation to science and mathematics. The curriculum is design to integrate ...more>> SolveMe Mobiles - Education Development Center, Inc. (EDC) Colorful interactive hanging sculpture puzzles that challenge pre-algebra and algebra students to balance equations by solving for unknown values. Freely solve over a hundred pre-hung mobiles or build your own and then contribute them to the SolveMe community. ...more>> Solving Simple Linear Equations - Math Forum, Ask Dr. Math Common Question A selection of answers to questions about solving simple linear equations by inspection, elimination, substitution, intersection, and graphing. ...more>> Solving Word Problems (SMILE) - Barbara Trotter, O. A. Thorp Scholastic Academy A lesson for intermediate and upper grades designed to teach students several different techniques for solving word problems. From the Practical and Applied Math section of a collection of almost 200 single concept lessons by the Science and Mathematics ...more>> Sometimes We Learn Some Math Too - Jacqueline Sheppet Blog by a high school teacher in British Columbia. Posts, which date back to September, 2014, have included "Purple is the new math," "Forming a formative mindset," "A formula to understand," and "Do the ends justify the means?" ...more>> square root of negative one teach math - Amy Gruen Blog by a high school math teacher in Kansas. Posts, which date back to December, 2010, have included "Stations Review and Practice," "The Loop for Logs," "My Thoughts On Homework," "Everyone Failed (and What's Up With Probability?)," "Visualizing Volumes," ...more>> Square Roots without a Calculator - Math Forum, Ask Dr. Math Common Question A selection of answers to questions about square roots without a calculator, from the divide-and-average technique to Newton's method to the continued fraction algorithm (CFA). ...more>> Squares and Square Roots, 1-100 - Math Forum, Ask Dr. Math Common Question A table of squares and square roots, 1-100. ...more>> Squares in a Checkerboard - Math Forum, Ask Dr. Math Common Question A selection of answers to questions about how many squares or rectangles there are in a checkerboard or in an NxN square. ...more>> Statistics Glossaries - Math Forum, Ask Dr. Math Common Question A selection of statistics glossaries on the web. ...more>> Strategies for Finding Sequences - Math Forum, Ask Dr. Math Common Question A selection of answers to questions about strategies for finding sequences, such as "Write an expression to find the nth term of the following sequence: 3, 9, 18, 30, 45..." and "Find the following 2 terms and a formula for the nth term." ...more>> Strawberry Macaw's Puzzle Page Although simple, this collection of four logic puzzles provides a challenge for students of any age. The interactive puzzles are: The Fox, the Duck, and the Bag of Corn; The Three Gallon and Five Gallon Cans; The Twenty-Three Matches Game; and The Game ...more>> SuccessMaker mathematics courses - Pearson Education, Inc. A learning environment combining a management system, assessment, and curriculum resources to provide administrators, teachers, and students with tools to improve academic performance. Also available from http://www.pearsonschool.com/index.cfm?locator=PSZk99. ...more>> Sudoku Widget - Brian DeBoer Macintosh OS X users familiar with Dashboard use its mini-applications to perform common tasks and get fast access to information. The Sudoku Widget by Brian DeBoer generates random puzzles with four different levels of difficulty, has the option to show ...more>> Teaching Mathematics - Daniel Pearcy Pearcy has used this blog, subtitled "Questions, Ideas and Reflections on the Teaching of Mathematics," as a "journal of ideas, lessons, resources and reflections." Posts, which date back to October, 2011, have included "New Sunflower Applet: Fibonacci ...more>> Teaching Pets - Andy Davis See the math resources section of this collection of worksheets and related resources for the primary and middle grades teachers. ...more>> Test-Prep Mathematics Table of Contents - Pamela Cohen, Walter Antoniotti Free practice problems worksheets in whole numbers; fractions; decimals, ratios, rates, proportions, and percentages; exponents, roots, algebra, and geometry; using formulas to solve problems; multi-step word problems; and graphs, signed numbers, statistics, ...more>> themathlab.com Playful, interactive student-made problems, games, drills, lesson ideas, tools, "magic," and more. Lessons include practice problems which, when solved correctly, generate passwords that grant access to "treasure rooms." Lesson ideas include Algebachee ...more>> Think3d! - Allyson Hutton, Director Inspired by an architect's visit to a 4th grade classroom, this elementary school curriculum develops spatial reasoning and visuospatial thinking through 2-D to 3-D transformation challenges in origami and pop-up paper engineering. Collaboration with ...more>> ThinkFun - ThinkFun, Inc. The makers of Spin Out and Rush Hour seek to "push [you] farther, probe deeper and think more creatively through game play." Brainteaser games include Math Dice, which challenges you to use addition, subtraction, multiplication, division, and exponents ...more>> thnik again! - Jan Nordgreen "Silly mathematical dialogues aimed to confuse." Nordgreen's daily blog of brain teasers and quotes dates back to November, 2007. ...more>> Three Common Graphs - Math Forum, Ask Dr. Math Common Question A selection of answers to questions about three common graphs: bar graphs, histograms, and pictograms. ...more>> Through the Glass Wall: Computer Games for Mathematical Empowerment (TERC) - Testbed for Collaboration, Eisenhower Regional Consortia An NSF-funded research project that has spent two years looking at how girls and boys play mathematical computer games in order to consider and describe what makes a good mathematical and equitable computer game. The site provides descriptions of over ...more>> Time Engineers - Software Kids A CD-ROM game of interactive, open-ended engineering problems to solve by using math and science skills, designed to help middle and high school students explore and apply some of the fundamental principles of engineering. Time Engineers encourages trial-and-error ...more>> Time Zonese - Math Forum, Ask Dr. Math Common Question A selection of answers to questions about time zones, how they work, and why the former USSR have 11 time zones, while China has only one. ...more>> Toads And Frogs Puzzle - Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny An interactive exploration of the Toads and Frogs puzzle, also known as Hares and Tortoise; Sheep and Goats; Hop, Skip, Jump; and Traffic Jam. ...more>> Tournament of Towns - Math Net, University of Toronto A worldwide problem solving competition in mathematics. The contest attracts students of all mathematical interests and abilities with its inclusive rules and creative problems -- some as challenging as those of the International Mathematical Olympiad. ...more>> Tournament Scheduling - Math Forum, Ask Dr. Math Common Question A selection of answers to questions about scheduling tournaments, from "Can you help me construct a schedule for a round robin style junior hockey tournament with two divisions using only four fields?" to "What are the odds of one person predicting the ...more>> Triangle Congruence - Math Forum, Ask Dr. Math Common Question A selection of answers to questions about triangle congruences, such as "Why can't the SSA Theorem be used to prove congruence?" and "When should we use Congruent Parts Congruent Triangles Congruent (CPCTC), and how does it prove anything?" ...more>> Twos Complement - Math Forum, Ask Dr. Math Common Question A selection of answers to questions about two's complement, a way to encode negative numbers into ordinary binary so that addition still works. ...more>> UBUYACAR - Maricopa Center for Learning and Instruction An online problem-based learning manual for students that poses the question: "You are interested in purchasing a new vehicle. What should your annual salary be to afford the car you want?" Students move through a problem-solving process. A Tutor's Manual ...more>> Unit Conversions, Unit Cancellation - Math Forum, Ask Dr. Math Common Question A selection of answers to questions about unit conversions and cancellations, from "Convert: 3.25 cm to millimeters...." to "If you can run 100 meters in 10 seconds, how long, in days, hours, and minutes, does it take you to run 12,800,000 meters?" ...more>> UVM High School Math Contest - Larry Kost, University of Vermont College of Engineering & Mathematics Tests, with solutions, from contests dating back to the forty-fifth annual high school prize examination, of 2002. The tests consist of about forty questions encompassing number theory, algebra, and geometry. Also, lists of statewide and regional winners, ...more>> Vectors - Math Forum, Ask Dr. Math Common Question A selection of answers to questions about vectors, sums of vectors, angles between vectors, and vector spaces, such as "A river flows westward at 8 m/s. A person wants to go directly across the river so that the resultant velocity is 12 m/s northward...." ...more>> Venn Diagrams - Math Forum, Ask Dr. Math Common Question A selection of answers to questions about Venn diagrams and using them to model sets, intersections, and unions. ...more>> Villainy, Inc.: Thwarting World Supremacy through Mathematics - Maryland Public Television To thwart the evil Dr. Wick, ID, middle grade students take on the role of an advisor to his company, Villainy, Inc. -- while secretly using their math skills to make sure Wick never succeeds. As undercover double agents for the Anti-Villainy Unit (the ...more>> The Virtual High School The Virtual High School project is a collaborative of high schools from around the country. In exchange for contributing a small amount of teaching time, a school in the collaborative can offer its students web-based courses ranging from advanced academic ...more>> Volume of a Tank - Math Forum, Ask Dr. Math Common Question A selection of answers to questions about finding the volume of cylinders, cones, oblate spheroids, and other tanks, such as "How can I calculate volume of liquid in a cylinder that's not full and lying horizontally?" ...more>> Was Math Invented or Discovered? - Math Forum, Ask Dr. Math Common Question A selection of answers to questions about whether math was invented or discovered. ...more>> Weighing a Counterfeit Coin - Math Forum, Ask Dr. Math Common Question A selection of answers to questions about using a balance beam to find a counterfeit coin, such as "If there are twelve coins in a bag, one of which is either lighter or heavier than the others, find the fake coin in exactly 3 weighings and determine ...more>> Weighted Averages - Math Forum, Ask Dr. Math Common Question A selection of answers to questions about weighted averages, where some data have greater value than others, such as determining a final grade from three tests worth a total of 45% of the final grade, a final exam worth 25%, a project worth 15%, and three ...more>> The West Point Bridge Design Contest - United States Military Academy, West Point, New York A challenge for U.S. students age 13 through grade 12. The purpose of the contest is to provide middle school and high school students with a realistic, engaging introduction to engineering. Learn about how engineers use the computer as a problem-solving ...more>> What Color Is My Hat? - Math Forum, Ask Dr. Math Common Question A selection of answers to questions about which person wears which hat, such as "Three students close their eyes, and the teacher puts a hat on each of their heads (hiding the other two hats)...." ...more>>
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