- SUMS Online Mathematics - SUMS ONLINE Limited
Eighty core activities in handling data, shape and space, calculations, and numbers. Trial sample activities in the playground: Fraction Monkeys, Bracket Basics, Fruit Picker (angle rotation), Place Value Darts, Hidden Craft (grid positioning), Division
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- SumTree Order of Operations Calculator - Martin Bradley
SumTree is a shareware program designed for parents and teachers as an educational tool which will interest children in arithmetic and illustrate the correct order to work out sums.
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- Suntex First in Math - Suntex International Inc.
Play sample games of 24 online for free, or purchase a site subscription and register for access to a full range of interactive 24 games. Learn more about First in Math classroom kits, school kits, and the McDonald's restaurants First in Math League.
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- SuperKids Educational Software Review - Knowledge Share LLC
Reviews of educational software in many categories, including math (see Math Software For Young Students and Math Software II). Reviews are comprehensive, including information about price and product support as well as general usability issues. A Math
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- SuperKids Math Worksheet Creator - SuperKids Educational Software Review
Make your own math drill worksheets: select the type of problem (addition, subtractions, multiplication, division, fractions, greater/less than), the maximum and minimum numbers to be used in the problems, click on the button, and a worksheet will be
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- SuperKids Review of Educational Algebra Software - Knowledge Share LLC
Reviews of the educational algebra programs: Astro Algebra, Grade Builder Algebra 1, Math Blaster Algebra, and Mathpert Algebra Assistant. Ratings based on educational value, kid appeal, ease of use, hardware requirements, and a buyer's guide (price comparison).
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- Super Maths World - P. and R. May
Topic-based multiple choice assessment with a video-game feel. Year-long subscriptions available for schools/districts, with a reduced rate for small schools and individual customers. Some activities are free to guests.
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- Supporting Sense-Making and Perseverance - Suzanne Alejandre
Article about how the Math Forum's noticing and wondering not only values each learner, it "also works to engage all learners in finding their mathematical voice." Originally published in the March, 2013, issue of the CMC ComMuniCator, journal of the
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- Surface Area of a Cone - NASA Lewis Learning Technologies Project
What is the approximate surface area of a cone whose slant height is 6 inches and whose radius is 3 inches? A detailed answer is provided. From NASA's 9th Grade Math Proficiency Test.
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- The Surface Area of a Cylinder (SMILE) - Edwina R. Justice, Gunsaulus Academy
A lesson designed to teach students to relate the areas of one rectangle and two circles to the total surface area of a cylinder; relate the circumference of a circle to the base of the rectangular section of a cylinder; and to review the area of a circle.
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- Surface Area of a Rectangular Solid - NASA Lewis Learning Technologies Project
What is the surface area of a rectangular solid whose length is 6 centimeters, depth is 5 centimeters, and height is 4 centimeters? A detailed answer is provided. From NASA's 9th Grade Math Proficiency Test.
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- Surface Distance Between Two Points of Latitude and Longitude - John A. Byers, United States Department of Agriculture - Agricultural Research Service
Enter the latitude and longitude of two points on Earth, and this JavaScript program returns the distance between the locations in kilometers, miles, and nautical miles. Similarly, calculate the great circle distances between over 300 cities. Download
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- Surfaces (Geometry and the Imagination) - Conway, Doyle, Gilman, Thurston; The Geometry Center
A surface, or 2-manifold, is a shape any small enough neighborhood of which is topologically equivalent to a neighborhood of a point in the plane. For instance, a the surface of a cube is a surface topologically equivalent to the surface of a sphere.
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- Surfing The Net with Kids: Math - Barbara J. Feldman
The author is a newspaper columnist who collects, reviews, and rates, and sorts by subject internet sites for kids. The site is searchable, and includes various subject areas, a weekly email newsletter, and items for parents and teachers.
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- Sylvan Learning Center
Math help and tutoring, tailored to meet academic goals and needs. Sylvan's teachers create custom learning plans based on assessment, with ongoing evaluations and program updates to continue challenging students. Search by geography to find a center
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- Symbolab - EqsQuest
This semantic search engine for math and science considers the contextual meaning of equations and expressions. Query a mix of text and symbols with Symbolab's pad, which toggles among Greek letters, operators, differentials, and "accents" (vectors, hats,
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- SymmeToy - Hank Hufnagel
A Windows program for creating paint patterns, symmetry roses, tessellated art, and symmetrically decorated 3D polyhedron models. The program is easy to learn, fun to use and includes extensive online help. Appropriate for all ages, but especially for
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- Symmetric Patterns at the Alhambra, with Math Problems - Susan Addington, David Marshall
The Alhambra is a walled city and fortress in Granada, Spain, built during the last Islamic sultanate on the Iberian peninsula, the Nasrid Dynasty (1238-1492). The palace is lavishly decorated with stone and wood carvings and tile patterns on most of
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- Symmetrier, monstre & tesselationer med The Geometer's Sketchpad - Allan Bergmann Jensen, Kalundborg, Denmark
GSP Symmetries, Patterns and Tessellations. Contains a gallery of wallpaper designs constructed using the Geometer's Sketchpad with JavaSketchpad versions to explore, an illustrated paper on "The Math About Symmetries" (in Danish), a GSP guide, a links
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- Symmetries and the Millennium (Math Chat) - Frank Morgan; Christian Science Monitor
What are the symmetries of a cube in space? What about a hypercube in 4- dimensional space?
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- Symmetry and Group Theory (The Geometry Junkyard) - David Eppstein, Theory Group, ICS, UC Irvine
Computational and recreational geometry pointers to sites with information, problems, and lessons having to do with symmetry and group theory (tessellations, kaleidoscopes, origami, etc.).
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- Symmetry and Orbifolds (Geometry and the Imagination) - Conway, Doyle, Gilman, Thurston; The Geometry Center
Given a symmetric pattern, what happens when you identify equivalent points? You get an object with interesting topological and geometrical properties, called an orbifold... hearts, paper dolls, wave patterns, quotient orbifolds, Moebius bands.
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- Symmetry and Pattern: The Art of Oriental Carpets - The Textile Museum/Math Forum
In this online exhibit, the study of symmetry is used to analyze patterns in Oriental carpets. A joint project of The Textile Museum and The Math Forum.
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- Symmetry - Rick Engel
A lesson on the symmetry of the Platonic and Archimedean solids using Polymorf, a math manipulative product. Demonstrates inscription, truncation, sectioning, and space filling with polyhedra.
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- Systematic Mathematics - Paul Ziegler
This video-based home school math curriculum promises to "repair [the] essential foundation for your more experienced student, or create a solid math foundation for younger students." Each module consists of dozens of short lessons, delivered via DVD,
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- System Dynamics in Education Project (SDEP)
System dynamics is a method for studying the world around us. It deals with understanding how complex systems change over time. Internal feedback loops within the structure of the system influence the entire system behavior. Math materials are available
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- syzygy-matrix: solutions for small problems in the classroom - Jeff LeMieux
Generate cryptograms, division worksheets, fraction worksheets, and proportion problems. Select the length of dividend, denominators specified by the Washington State Standards for Grade 7, number of problems, and more. The worksheet maker prints solutions.
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- Syzygy Shareware - Thomas C. Bretl
A source of math freeware for both Mac and PC, appropriate for grades K-12. Includes games,
simulations, and skill-building programs. Explore, see in new ways, discover patterns, and solve
problems.
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- T3 Conferences - Texas Instruments, Inc.
The T³ program hosts the annual T³ International Conference each spring and two-day Regional Conferences throughout the year. T³ Virtual Conferences contain video recorded sessions from T³ events. T³ conferences are appropriate for K-college, mathematics
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- Tables of Roman Measurement - Mike Neill
Tables of Roman measurement on this site (Calender, Capacity, Length, Money, Surface, Weight) are taken from A Smaller Latin-English Dictionary, by William Smith LLD, a Classical Examiner in the University of London, John Murray, Albemarle Street, 1865.
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- Table-Top Earthquakes - John C. Lahr
A demonstration of seismology for middle-school teachers and students that can be used to augment lessons in earth science (faulting, elastic rebound, plate motions), physics (forms of energy, elasticity, friction, magnetism, waves), math (graphing, logarithms,
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- Take a Little Piece of PI with You Wherever You Go - Adam Zampino
Proudly display PI to 1000 decimal places in an attractive design, in various types of apparel and housewares (mugs, clocks, etc.). PI has fascinated people for centuries, and now you can have your own piece of PI to enjoy. This makes a great gift for
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- Taking 20 Percent Off - NASA Lewis Learning Technologies Project
If a $900 computer is on sale for 20 percent off, what is the sale price? A detailed answer is provided. From NASA's 9th Grade Math Proficiency Test.
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- Taking America's Measure - National Institute of Standards and Technology (NIST)
Resources on this site for children include: Metric Pyramid (a pattern that can be printed, cut out, folded, and taped in the shape of a pyramid); Metric Fast Facts for Sports; Metric in the Kitchen; All You Will Need to Know About Metric; Metric Conversion
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- Taking a Workshop or Course - Annenberg Media
Workshops and courses appropriate for preservice and inservice teachers, administrators, reformers, and policymakers. Supplemental video programs called teaching practices libraries are also available--they give a "fly-on-the-wall" view of real teachers
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- Talking Math Ed with the Males - Josh and Lorraine Males
This blog "dedicated to all things math ed" includes lesson ideas, policies, curriculum, and research. Posts "for people to have a conversation about mathematics education," which date back to August, 2011, have included "CCSS from the Curriculum Writers
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- Tangoes - Rex Games, Inc.
Based on the ancient Chinese Tangram puzzle, Tangoes is a learning tool that combines artistic and mathematical elements to enhance visual perception ability, develop problem solving skills, and encourage creative thinking capacity and teamwork. Tangoes
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- Tangram Page - S. T. Han
All about tangrams, an ancient Oriental toy that has 7 pieces: 5 triangles in different sizes, 1 square, and 1 parallelogram. The object of the game is to form a given shape using all 7 pieces. Introduction, Puzzle of the Month, PC/Mac Software, Articles
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- Tangrams: History, Puzzles, Make It, and Links - Randy Crawford
Follow the "history" link to learn about tangrams through the ages; click on "puzzles" for over 100 silhouettes to reconstruct, with solutions. "Make it" provides instructions for building your own tangram set. With references to more sites, software,
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- Tangrams - J. L. Read; Enchanted Mind
A tangram applet that allows you to rearrange the seven forms to exactly reproduce the given image. To move the pieces, drag them with the mouse. To rotate pieces, click with the right mouse button or (on the Mac with a one-button mouse) click while holding
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- Tangrams - Tom Scavo
Tangrams, a puzzle that helps develop spatial-visualization skills, may also be used to introduce or reinforce geometric concepts such as congruence, similarity, symmetry, etc. This unit for grades 4 through 6 uses tangrams to compute the area of polygons
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- Taniyama-Shimura Conjecture Proved (Math Chat) - Frank Morgan, MAA Online
A proof of the full Taniyama-Shimura conjecture, partly included in Wiles's 1994 proof of Fermat's Last Theorem, was announced last week [June, 1999] at a conference in Park City, Utah, by Christophe Breuil, Brian Conrad, Fred Diamond, and Richard Taylor,
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- Tanzzle™ - Franco Cocchini
Software for exploring tangrams. View published patterns and/or submit one of your own. Request a free license for schools and educational programs. Free 30-day trial; free viewer download. Choose from four different sets of pieces: Tangram (traditional
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- TareasPlus
Videos de lecciones a frente de una pizarra digital, narrado en español. Variando en duración, los asuntos de matemática incluyen aritmética, álgebra, trigonometría, precálculo, cálculo diferencial,
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- The Tau Manifesto - Michael Hartl
"This manifesto is dedicated to one of the most important numbers in mathematics, perhaps the most important: the circle constant relating the circumference of a circle to its linear dimension... The traditional choice of circle constant is π -- but,
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- Taxicab Numbers - Simon Plouffe
A list of the smallest number that can be expressed as a sum of two positive cubes in n different ways, for n = 1 through 5.
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- TCWORLD: Online Resource for Technology Coordinators
A monthly publication of articles on exceptional uses of technology in schools, software reviews, technology policies, computer set-up tips and techniques, security methods, opinions on integration and access, purchasing tips, a newsletter, and more.
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- teachade - AP Ed Ventures
An online community for teachers to discuss issues relevant to teaching, share and author curriculum, access resources that support their professional development, and have an impact on commercial providers of educational services and products. Draft
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- Teach California Charter Schools
A consortium of charter schools and networks throughout California, organized to recruit and select outstanding teachers for positions in the Bay Area, Los Angeles, and the Sacramento and Central Valley areas of California.
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- TeachEngineering Digital Collection
The TeachEngineering digital library provides teacher-tested, standards-based engineering content for K-12 teachers to use in science and mathematics classrooms. Engineering lessons connect real-world experiences with curricular content already taught
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The Math Forum is a research and educational enterprise of the Drexel University School of Education.