This 342-page guide outlines and illustrates effective strategies for number sense and numeration to children in kindergarten through grade 3.

Do you want to know how to pronounce really big numbers? Paul can teach you!

MathWorld provides a huge mathematics encyclopedia detailing the concepts of geometry, algebra, calculus, discrete math, number theory, and other math topics--complete with formulas, diagrams, examples, and references for thorough...

An interactive for working with ten frames or a variation of one. Choose characters or shapes for counters and lay them out in your frame. There are tools for duplicating, rotating, drawing, and deleting, as well as for typing an...

Use this interactive math crossword puzzle to build number sense skills. Simply fill in the missing numbers based on the operation. Immediate feedback given to responses.

Identify every number from 0 up to 20 with this interactive lesson. Click the how to do it button for instructions.

This is an excellent resource for teaching and learning about decimals. Three different interactive number lines help students visualize units in tenths and hundredths and decimals.

[Free Registration/Login may be required to access all resource tools.] For this learning module, students use their number sense when looking at different combinations of decimals being divided and, without calculating, state which...

[Free Registration/Login may be required to access all resource tools.] For this learning module, students use their number sense when looking at equations where decimals are being divided and, without calculating, state which quotient...

[Free Registration/Login Required] A collection of teacher created activities that focus on basic addition practice. Includes frog counters that can be printed and laminated, a dot-to-dot activity, and ready-to-use math worksheets that...

Explore primes, prime factors, and composites using this collection of worksheets. Lots of detailed examples, interesting math facts, and colorful visuals. Acrobat Reader required.

[Free Registration/Login may be required to access all resource tools.] A video and practice questions where students are shown how to put a set of numbers up to 1000 into numerical order, which they then try on their own. [2:18]

Students work in groups to plan a flight around the country. The activity explores estimation, number sense, measurement, and patterns. The resource consists of a lesson plan, group activity instructions, lesson overview, and an expert...

An engaging lesson used to review math concepts and facts. Students are certain to "Stay alert," in this card game where each solution is related to the next solution. Sample questions provided. Great problem solving and skill building...

Volume 1 in an eworkshop Guide to Effective Instruction in Math outlines and illustrates instructional strategies for explaining five big ideas of number sense and numeration to students in grades 4 through 6: quantity, operational...

A concise tool for assessing a variety of math concepts including measurement, algebra, number sense, and data. Assessment is scored online immediately. An excellent tool for quick assessment.

Can you guess the correct number between 1 and 99 in less than 30 tries? Play this fast paced, interactive game that tests your number sense and reasoning skills. If your are a great guesser, your name will be posted.

Pat Tern has been buying items all around town using counterfeit money. Help Math Maven identify a pattern to catch her before she deposits fake money into the Cashflow Bank.

This site has two lesson plans are presented by Marilyn Burns and associates that use children's literature to help assess math sense. One lesson plan is for use with primary students while the other is for use with intermediate students.

Answer only 15 questions to become a Math Millionaire when you play this interactive game that focuses on a variety of math skills. An engaging, fast paced, and fun way for learners to review math concepts. Answers are checked immediately.

Let's play Jeopardy! Modeled after the popular TV game show, this interactive game focuses on addition number skills. Immediate feedback given to responses. Top winners have their scores posted daily.

Get the definition for Absolute Value. Then, move the slider along the interactive number to see examples. Click on the link, "here's more" for more information.

Practice counting down from ten with this interactive game.

This lesson is about counting by fives from AAAmath.com. There are separate sections for learning, practice, playing a game, and exploring more about skip counting.