Estimate the number that the pointer is pointing to, and then reveal the correct answer. You can choose whole numbers or decimals, and create your own number line if you wish. Click on [Begin] to start.

http://resources.oswego.org/games/Estimate/estimate.html

Click on the link below to download this flash activity, where students are asked to compare whole numbers, fractions or decimals. You can also create your own activities, including ordering measurements with different units.

http://www.topmarks.co.uk/r.aspx?sid=2452

Put either a "less than" symbol or a "greater than" symbol between the two numbers. You can choose the range (1 - 100, 1 - 1,000 or 1 - 10,000).

http://www.crickweb.co.uk/assets/resources/flash.php?&file=ncmenu

Concentration Memory Game

You can choose to play the game to revise number facts, fraction concepts or fraction-decimal-percent conversions. Very nice implementation!

http://illuminations.nctm.org/ActivityDetail.aspx?ID=73

You are shown the actual share price and trading information for an unknown company over a period of time. Use this information to try to choose the best times to buy and sell shares. How did you do over a year? Three thumbs up!

http://chartgame.com/

These are two excellent interactive sites for exploring correlation.

Exploring Correlation
A flash program. The student can move sliders to change the number of points and the correlation coefficient. Points on the scatterplot can be dragged to see how that affects the correlation coefficient. Three thumbs up!
http://www.bc.edu/research/intasc/library/correlation.shtml

Correlation Demo
A java applet. Students can change the number of points and the correlation coefficients, as well as add points. They can also plot the regression line and the residual plot. Three thumbs up!
http://stat-www.berkeley.edu/~stark/Java/Html/Correlation.htm

Random Student Name is a tool for randomly selecting students from your class. It will select in an unbiased fashion and without repetition until all members have been selected.

Typically Random Student Name is used for deciding 'who will answer the next question', or for dividing your class into random pairs or teams for group work.

At the beginning of the school year teachers can set their class list (up to 32 students). Random student name is easy to edit when students need to be added or taken from your class list. It is also easy to temporarily omit a student from the list in the case of students which may be absent on a particular day.
http://www.myinteractiveclassroom.com.au/products/random-student-name/ra...

This is one of many creative interactive activities available from John Short's wonderful website:
http://www.myinteractiveclassroom.com/

An interactive lesson from HippoCampus that introduces the concept of a limit.
http://tinyurl.com/6pfure

See all of the interactive lessons from HippoCampus at
http://www.hippocampus.org

An interactive lesson by HippoCampus on variables, expressions and equations.
http://tinyurl.com/5zwjvc

All of the HippoCampus interactive lessons can be found at
http://www.hippocampus.org/

An interactive multi-media lesson on real numbers, by Hippocampus
http://tinyurl.com/5zrjfy

You can view all of the interactive algebra, calculus and statistics lessons by Hippocampus at
http://www.hippocampus.org/