Wolfram Research
Wolfram Math World: World's Most Extensive Mathematics Resource
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...
AAA Math
Aaa Math: Counting by Fives
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.
Scholastic
Scholastic Lesson Plan: Simple Ways to Assess Math Sense
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.
Mr. Martini's Classroom
Mr. Martini's Classroom: Kids' Number Maker
Identify every number from 0 up to 20 with this interactive lesson. Click the how to do it button for instructions.
National Council of Teachers of Mathematics
Nctm: The Math Forum
This is a useful site with lesson plans, problems of the month, etc.
abcteach
Abcteach: Basic Math Addition Activities
[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...
![Wired Math: Primes and Prime Factors [Pdf] Unknown Type](https://d15y2dacu3jp90.cloudfront.net/images/attachment_defaults/resource/large/FPO-knovation.png "Wired Math: Primes and Prime Factors [Pdf] Unknown Type")
University of Waterloo (Canada)
Wired Math: Primes and Prime Factors [Pdf]
Explore primes, prime factors, and composites using this collection of worksheets. Lots of detailed examples, interesting math facts, and colorful visuals. Acrobat Reader required.
Other
Plane Math: Activities: Fill 'Er Up
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...
AAA Math
Aaa Math: Counting by Fours
This lesson is about counting by fours from AAAmath.com. There are separate sections for learning, practice, playing a game, and exploring more about skip counting.
AAA Math
Aaa Math: Counting by Twos
This lesson is about counting by twos from AAAmath.com. There are separate sections for learning, practice, playing a game, and exploring more about skip counting.
AAA Math
Aaa Math: Counting by Threes
This lesson is about counting by threes from AAAmath.com. There are separate sections for learning, practice, playing a game, and exploring more about skip counting.
Organization for Community Networks
Lesson Plan: I've Got Your Number (Number Sense)
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...
Scholastic
Scholastic: Max's Math Adventures: Max's Super Stars
Use this poem, teacher's guide, and various small manipulatives to make a great lesson on counting. There is a section for students to give their responses on the website.
AAA Math
Aaa Math: Even and Odd Numbers
At this lesson you can learn, practice, play a game and explore all about even and odd numbers. There are lots of resources to use to learn about even and odd numbers.
AAA Math
Aaa Math: Counting Even Numbers
At this lesson you can learn, practice, play a game and explore counting even numbers by 2. There are lots of resources to use to learn about even and odd numbers at this website.
ReadWriteThink
Read Write Think: Exploring Sets Through Math Related Book Pairs
After reading two math-related books, students investigate their home and school environments to find examples of objects that come in sets and then create their own books on sets.
E-learning for Kids
E Learning for Kids: Math: Street Orchestra: Odd and Even Numbers
Use these interactive lessons to explore counting forward.
TED Talks
Ted: Ted Ed: One Is One, or Is It?
This animated video explores the basic unit of one and its different meanings depending on place value. [3:55]
BBC
Bbc Schools: Bitesize Revision Math Addition
This interactive activity has students practice number bonds to 10, 20, and 100. In addition to the online activity, there are teacher lesson plans and an online quiz on the topic.
AAA Math
Aaa Math: Estimation
Improve your estimation and rounding skills with these interactive games that are challenging and fun. Excellent skills practice for rounding, estimating sums and differences, and front-end estimation. Links to lesson plans, teacher...
AAA Math
Aaa Math: Counting Even Numbers by Twos
Use this lesson to learn about adding two and skip counting to understanding the concepts of counting even numbers by twos. Play the interactive game "Counting Up By Twos," and get your score instantly.
Microsoft
Microsoft Education Lesson Plan: Making Money From Lemons
Simulation where learners apply mathematics and economics concepts in the lemonade business. Learners set up a virtual lemonade stand and must determine production costs, product variables, and profits. Students record data collected on...
Wyzant
Wyzant: Fraction Mixed Number Calculator
Are you struggling with comparing fractions? Then try the fraction inequality calculator. Simply key in your two fractions, press the calculate button, and in seconds youll have an answer. The perfect tool for algebra students who need...
University of Waterloo (Canada)
Wired Math: Exponents [Pdf]
The mathematics resource assesses students on number sense and numeration. The activity includes solving problems using the rules of exponents. The learning exercise has problems, challenge activities, and an extension activity.