 Helping Your Child Learn Math  U.S. Dept of Education
A second, revised edition of Helping Your Child Learn Math for parents of children in kindergarten through fifth grade. The book includes a variety of activities that will help children learn and apply mathematical concepts such as geometry, algebra,
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 Histogram Explorer  Eric Scheide, University of San Francisco
Histogram Explorer is a tool for understanding histograms and their statistics. Drag the bars of the applet's histogram to see their effect on the mean, median, mode, range, standard deviation, and IQ, which recalculate after each change; select normal,
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 Hogwarts Express to Improved Problem Solving and Mathematical Communication  Judy Ann Brown
Download PDFs of problems based on the Harry Potter books by J.K. Rowling: Eight Digit Puzzle; House Flags; Secret Passageway; Wizard Cards Front; Wizard Cards Back; Coins; Bertie Beans; and Hogwarts Express Problem Solving Set.
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 Homework Relief Center  Family Education Network
Homework Relief Packs to purchase, for parents with kids in 3rd, 4th, and 5th grades. Stepbystep instructions walk parents through the homework first, so they can help their children. Each lesson includes troubleshooting tips and practice sheets.
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 How do You Stack Up? Revisited (SMILE)  Robert Foote, Walt Disney Magnet School
A lesson designed to teach students to estimate the number of pennies, nickels, dimes and quarters in plastic bags; build stacks of each type of coin; find the thickness of a penny, nickel, dime and quarter after measuring their stacks; measure to the
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 How to Lace Like an Ace (MatheMUSEments!)  Ivars Peterson (Math Muse for Kids)
One of your sneakers has a broken shoelace. You want to replace it, but the only laces you have around are much shorter. Is there a way to lace your shoes so that you can use the shorter laces? There are three common ways to lace shoes: American (or standard)
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 The Huexotzinco Codex  Library of Congress
In this lesson, students analyze a set of pictograph documents created by native peoples of Puebla, Mexico in 1531. Then they take on the role of historians, studying the documents, decoding images, tabulating quantities of goods paid to the local government,
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 Hypermedia Textbook for Elementary School Kids (MathMol)  Sheila M. Estacio
For Grades 35. Grade 3  Water (What is Water? Solid, Liquid, Gas, Water in the Air); Grade 4  Matter and Energy (What is Matter?, States of Matter, Fun Stuff with Matter, Energy, Measuring Energy); Grade 5  Atoms and Molecules (Atoms  Elements. Compounds,
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 IcoachMath
A platform for elementary and middle school math students to practice and improve their skills. The site has content for 300+ lessons in basic and advanced topics in math. Create worksheets with number, word problems and multiple choice questions; track
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 Identification of Equivalent Fractions (SMILE)  Bette B. Jarrow, Gaudy School
A modified rummy card game designed to teach students the meaning of a fraction; to identify the fractional representation for "one whole"; and to recognize the renamed fraction after it has been increased or reduced. From the Arithmetic section of a
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 Illusions of Depth (Elementary Art Lessons, Arts Wire)  Michael Delahunt
A 3rd grade lesson plan on "Seeing Near and Far": students learn how overlapping and size differences show perspective, and that on a level surface, the lowest part of a near subject is lower in a picture than the lowest part of a farther subject, recognizing
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 InfoMath
Online K12 math, following the premise that learning mathematics the traditional way is more effective than by playing games. Webbased courses: Math Tutor, PreAlgebra Tutor, Algebra Tutor, PreCalculus.
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 The IntegerZone  Philip Dorrell
A Java applet which presents the integers as a scrollable rectangular grid of cells, each cell displaying one number. Different modes illustrate different mathematical topics by defining the user's interaction with the grid in terms of response to mouse
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 The International Study Center  Boston College
Dedicated to conducting comparative studies in educational achievement. Principally, it serves as the International Study Center for IEA's studies in math, science, and readingthe Trends in International Mathematics and Science Study (TIMSS) and the
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 Internet Lessons  Susan Boone; GirlTECH '95, CRPC, RUSMP
Lessons with an Internet component, developed for GirlTECH'95, a program funded by CRPC Rice University and the RUSMP. A Functional Housing Market asks students to search the Internet for housing prices and compare them to the area of a house, thus deriving
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 Introducing Powers And ModelsII (SMILE)  Sarah Barrett, Mars Hill School
A lesson designed to teach students powers and models using Multiplication Rummy, a card game that provides practice in rapid calculation to increase the acuity
of excellent students. From the Arithmetic section of a collection of almost 200 single
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 An Introduction to Data Reading and Computations (SMILE)  Christeen Brown, Robert Fulton Elementary School
A lesson for grades 35 designed to teach students to identify data on the horizontal (x) axis and vertical (y) axis; read numbered pounds on a weight scale; estimate pounds upon sight before being given a known weight; identify actual weight; understand
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 Introduction To Equivalent Fractions (SMILE)  Rose Cartwright, Lyman Trumbull School
A lesson designed to examine the partwhole relation of numbers and to compare one fraction to another in order to discover their equalities. From the Arithmetic section of a collection of almost 200 single concept lessons by the Science and Mathematics
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 An Introduction to Estimation and Measurements (SMILE)  Christeen Brown, Robert Fulton Elementary
A lesson for grades 35 designed to teach students to convert ounces to pounds; measure liquids; describe measurements in sizes; measure volumes; understand the importance of knowing and using the measurements; observe shapes and sizes in measurements;
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 An Introduction To Volume (SMILE)  Linda James Woods, Harold Washington Elementary School
A lesson for grades 35 designed to teach students about volume, using a variety of containers, potting soil, popcorn, etc. From the Geometry and Measurement section of a collection of almost 200 single concept lessons by the Science and Mathematics Initiative
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 Investing for Kids  Leung, Ngai, & Mirza, ThinkQuest 1998
A site designed by kids for kids. It examines stocks, bonds, mutual funds etc. to teach the principles of saving and investing to beginners and seasoned investors, and includes a stock market game for learning how to invest, with concepts of investing
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 Japanese Temari  Barb Seuss
Read about the history of this Asian needlework craft, find free patterns to stitch your own geometric designs on the sphere, browse online galleries of temari, and more.
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 Jayden's Rescue  Vladimir Tumanov; Scholastic Canada Ltd. (pub)
A novel whose plot revolves around mathematical puzzles roughly for grades 46. The puzzles are in verse, and the solutions are provided following each puzzle. The three child protagonists have to solve these puzzles in order to save an imprisoned queen.
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 Juggling by Number (MatheMUSEments!)  Ivars Peterson (Math Muse for Kids)
Mathematicians have invented a way to write down juggling patterns as sets of numbers. They look at the order in which balls are tossed into the air and then caught. Each toss or catch happens on a particular beat, as if the juggler were keeping time
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 Juniorszone
A provider of online primary school education offering literacy, numeracy keystage2 strategy based on the UK national curriculum. Areas include e learning, educational games, interactive learning, brain teasers, homework help, and free online tutorials.
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 K12 Teaching Materials (Mathematics Archives)  University of Tennessee, Knoxville (UTK)
An extensive list of Internet sites with significant collections of materials that can be used in the teaching of mathematics at the K12 level. Organized into categories: lesson plans, schools, software and other K12 Internet math sites.
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 Karismath  CLSO Learning Systems, Inc.
Math topics, including Algebra, are presented visually, through lessons (Flash animations that explain a target concept), demos (Flash animations that explain every exercise template to be used) and worksheets (PDF format) that can be downloaded. Each
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 KeyedIn Magazine  nelsonthornes.com
Weekly puzzles, quizzes, features of great mathematicians, fun with numbers, and strategy games. An Internet quest and "the serious stuff" offer selfscoring problems. Teacher resources provide links and ideas for each chapter of the Nelson Thornes Key
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 Kids' Place Brain Teasers  Houghton Mifflin Company
Math puzzles for grades 34, 56, and 7+. You don't need to be a math whiz to solve them, just to be patient and find different ways of looking at things. New puzzles and the answer to the previous week's puzzles are posted each Thursday. Helpful hints
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 Kids SyvumBook Series  Syvum Technologies, Inc.
Interactive educational software for English, Knowledge, and Math, targeted for kids ages 612. Each Kids SyvumBook offers multimedia strips and main activity frames. Four levels of Math SyvumBooks help improve arithmetic, algebra, and basic number skills
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 The Kids Zone Magazine
A magazine for kids, by kids, promoting interactive literacy by merging new technology with book reading and writing. For mazes to print and solve, see the Puzzle Zone.
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 Knot Magic Not Magic
(MatheMUSEments!)  Ivars Peterson (Math Muse for Kids)
Sometimes what looks like an impressive knot isn't a knot at all. Magicians and escape artists are experts at tying phony knots. Though magicians like knots that can fool people, mathematicians are mostly interested in real knots, especially knots that
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 The Knowledge Tree, Inc.
3D modelling and mathematics software, for a wide range of educational levels. Dealers for Aspex Software, Greygum Software, and the Math Circus programs.
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 Kognitia  Kognitia
Through games such as K Tycoons, Kognitia offers classrooms challenging competitions with other classrooms. Take a guided tour; register online.
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 Latitude/Longitude Position Finder  Juggling Information Service
Identify the latitude and longitude position of any point within the contiguous United States by clicking on the map to zoom in on the area.
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 Learning F. C.  Department for Education and Skills (UK)
Learning F.C. is a Key Stage 2 and 3 curriculum resource pack of literacy, numeracy, and Information and Communication Technology (ICT) exercises on the theme of football. It provides a range of soccerrelated curriculum materials for use in study support
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 LearnX.com  Learning Express
Practice tests (e.g. the New York State 4th Grade Math Test) to download in PDF format; search for math or mathematics to find books to buy; browse math skillbuilding books.
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 Les jeux de Lulu, le lutin malin  Regine
Jeux, écrits en JavaScript: jeux maternelle autour du nombre, orientation, déplacement, mémoire; jeux élémentaire et plus (logique, math, orientation). JavaScript games for children.
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 Lesson Plans  Chicago Lesson Study Group
This Lesson Plan Library organizes dozens of math lessons and units for grades 39, all aligned to the Common Core Standards. The Chicago Lesson Study Group invites teachers to rate and comment on these resources; and to join its forum to learn about,
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 Let's Do Math!  Cynthia Lanius
Maria and Cassie love doing math. The first problem they solve together is counting all the squares on a checkerboard  not just the individual squares, but all the differentsized squares that could be counted. Other Do Math problems include probability
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 Lizard Game (MatheMUSEments!)  Ivars Peterson (Math Muse for Kids)
The rocky Coast Range of California is the setting for an unusual game played by a brightly colored sideblotched lizard. Each male of the species has one of three throat colors, and each color of lizard has a different mating behavior. The lizards play
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 Locating IIT Using Ordered Pairs (SMILE)  Diane Yvette Branch, Harold Washington Elementary School
A lesson designed to teach students to plot and locate ordered pairs in a coordinate plane; and to understand how to read and create a map. From the Graphs and Visuals section of a collection of almost 200 single concept lessons by the Science and Mathematics
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 Locating Rational Numbers On the Number Line (SMILE)  William Winebrenner, Dunbar Vocational School
A lesson designed to teach students about rational numbers using the number line; to write rational numbers as the ratio of two integers; to convert each rational number to a mixed number; and to divide any given length into n equal parts. From the Arithmetic
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 Locker Problem  Suzanne Alejandre
A classroom activity (also called 1000 Lockers) aligned to the NCTM and California Standards, to be explored through the use of manipulatives and a ClarisWorks spreadsheet. Students then look for patterns and write the answer algebraically. The problem:
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 A Look at LOGO: MicroWorlds Pro  Jordan, Alex, Josh, Rex; ThinkQuest 2003
Sixth grade students Jordan, Alex, Jonah, and Rex draw on MicroWorlds Pro to learn to solve problems, use geometry, and think critically. Their site includes two lesson plans and several activities using MicroWorlds Pro, and some information on real turtles
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 Magic Squares: Math, History, Geography  Suzanne Alejandre
Designed primarily for middle school and older elementary school students, this Math Forum Web unit includes classroom activities for four different squares: Lo Shu, Sator, Dürer, and Franklin, three of them demonstrating increasing complexity using
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 Magische Quadrate  Holger Danielsson
History, definitions, magic sums, transformations, properties, and more. Danielsson provides Flash that uses Hendricks' method to construct your own magic squares: odd, even, doubleeven, singleeven, composite, concentric, mostperfect, bimagic, pandiagonals,
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 Make It Real Learning Company  Frank Wilson
The Make It Real Learning library features more than 100 math worksheets focused specifically on answering the question, "When am I ever going to use this?" The site addresses math topics ranging from fraction addition to partial derivatives. Their free
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 Mass and Weight in the Metric System (SMILE)  Janet L. Powe, Harold Washington Elementary School
A lesson designed to teach students to choose the most reasonable metric unit of mass; work in a group to weigh objects in the metric system; and solve problems using milligrams, grams, and kilograms. From the Practical and Applied Math section of a collection
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 Matemática Sem Palavras  Jorge Picado et al.
Diagramas visuais (Java) que conduzem à descoberta de áreas, multiplicação, equações completas de segundo grau, somas com um numero finito de parcelas, somas com um numero infinito de parcelas, desigualdades,
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