Interactive Math Websites for Interactive Whiteboards

Manipulatives

National Library of Virtual Manipulatives
Virtual manipulatives related to the NCTM standards.  This site has a lot of resources.
Base block addition and subtraction is great for teaching regrouping. 

Big Online Calculator
Use to teach students how to use a calculator.

eManipulatives
Base ten blocks, counters, number lines, etc...

Interactivate
Lots of resources for math lessons. 

Numbers

Wash Line
Put numbers in the correct order.

Number Recognition Launch the Spaceship
Students must click on the correct number to launch a spaceship/

Number Sequence
Students pick the correct number to complete a sequence.

Two Digit Numbers
Students match names of two digit numbers.

Numberlines
Students guess patterns on the numberline.

Odd or Even
Students sort numbers as odd or even.

Number Track
Place numbers in correct order.

Caterpillar Ordering and Sequencing
Students put number in the correct order to put a caterpillar back together.

Thinking of a Number
Students use clues to guess a mystery number.

Sequences
Students can learn patterns counting by different numbers.

Spooky Sequences Count by   2 ,       5 ,       10

Addition

Break the Wall
Students solve addition problems to destroy a wall.

Base Blocks Addition
Use base ten blocks to show regrouping in addition.

Subtraction

Break the Wall
Students solve subtraction problems to destroy a wall.

Base Blocks Subtraction
Use base ten blocks to show regrouping in subtraction.

Multiplication

Break the Wall
Students solve multiplication problems to destroy a wall.

Division

Break the Wall
Students solve division problems to destroy a wall.

Time

Bang on Time
Students stop the clock when it gets to the correct time

Stop the Clock    Half Hour  15 minutes 5 minutes 1 minutes
Students match times to the clock.

Time for Time
Students set the clock to the time displayed

Money

Money Powerpoints
Powerpoints that teach about money.

Shapes

Polygon Sort

Symmetry Sort

Triangle Sort

Virtual Geoboard

Virtual Geoboard 2

Shapes

Tangrams Puzzles

Interactive Math Sites With Multiple Resources

Math Playground   Grades 1-12   Free
This site has insructional material, flash cards, and games.

CoolMath4Kids   Grades 1-6  Free
This site has a lot of resources.  Each topic has lessons teach the skill, flash cards, and games to reinforce and practice skills.

CoolMath Grades 6-12  Free
Companion site to CoolMath4Kids but geared for grades 6-12.  Each topic has lessons to teach the skill, flash cards, and games to reinforce and practice skills.

CoolMathGames   Grades 1-12  Free
Another companion site to CoolMath4Kids.  This site has a lot of educational games to play.

Mr. Nussbaum's Math Lab   Grades 1-12  Free
This is part of a larger site with a lot of games in every subject.  It has math games, worksheet generators, calculators, and more.

Illuminations   Grades K-12   Free
102 online activities for grades k-12.

Count Us In   Grades prek-2   Free
This site has games to help children with basic number concepts.  You can also find lesson plans to teach each concept.  It also has the option to download games to run on your computer.

Math Advantage   Grades K-8   Free
This site is from Harcourt and supports their math series.  You can find games to practice math skills from K-8.

AmblesidePrimary    K-8    Free
This site has teaching tools, tests, and games to reinforce math skills.

FunBrain Math Arcade   Grades K-2   Free
Arcade-style games to reinforce math skills.

Ictgames   Grades K-2   Free
Interactive games for younger kids to practice basic math skills.

Bitesize   K-2   Free
BBC site that focuses on numbers, shapes, measurements, and data.  It has games to reinforce skills.

National Library of Virtual Manipulatives for Interactive Mathematics   Grades 1-12  Free
Interactive manipulatives to help you teach a skill.  Resources are intended to be used with or after direct instruction from a teacher.

I nteractivate   Grades 6-12  Free
Website is more appropriate for older grades.  Resources are intended to be used with direct instruction from teacher.  It does contain a lot of activities.

Crickweb Interactive Math Resources   Free
Lots of great interactive resources to teach and practice math skills.