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Search for activities by grade level and strand. Excellent math interactives for class instruction and individual/small group use for reinforcement/practice. Lesson plans, standards, and instructions available. \nMany specific activities are bookmarked but there are still lots to explore. This will be a favorite.

Serious Gaming from NCTM/ ILLUMINATIONS \n\nCalculation Nation™ uses the power of the Web to let students challenge opponents from anywhere in the world. (USA & CA for now) At the same time, students are able to challenge themselves by investigating significant mathematical content and practicing fundamental skills. The element of competition adds an extra layer of excitement.\n\n"The games on Calculation Nation™ provide an entertaining environment where students can explore rich mathematics," "Through these games, students are exposed to the same mathematical topics that they see in class as well as those that are recommended in Curriculum Focal Points."\n\nCan play against computer using a guest pass but must create an account to challenge other players. \n\nSquare Off--Perimeter and area, Factor Dazzle, Fraction-Feud, Times Square, Slam Ball.

Graph data sets in bar graphs. The color, thickness and scale of the graph are adjustable. You can input your own data, or you can use or alter pre-made data sets.

Use counting strategies to make as many outfits (combinations) for Bobbie Bear as you can, using different colored shirts and pants.

Information can be represented in many ways, and this applet allows the user to represent data about the states using colors. The state with the highest data value is darkest; other states are shaded proportionally. Investigate any of the data provided-or enter data of your own!

Create a pie chart using this tool

Quilters and other designers sometimes start by producing square patches with a pattern on them. These square patches are then repeated and connected to produce a larger pattern. Create your own patch using the shapes in the tool below.

Draw and cut shapes, then use slides, turns, and flips to move the cut pieces around. Explore how to decompose shapes and recompose them to make other shapes.

Fun problem-solving tool for arithmetic operations. Introduce whole class and then play in pairs or alone

After Okta hides some bubbles under a shell, he then either adds more bubbles or takes some away. Students have to determine how many bubbles are left under the shell.

Great math center activity once students understand how to use. Has audio narration. Thinking about numbers using frames of 5 can be a helpful way to learn basic number facts. The four games that can be played with this applet help to develop counting and addition skills.

This double pan balance provides an interesting environment in which to consider the concept of equivalence. Two other tools, Pan Balance - Numbers and Pan Balance - Expressions, are natural extensions.

Another math center activity once students understand how to play. Thinking about numbers using frames of 10 can be a helpful way to learn basic number facts. The four games that can be played with this applet help to develop counting and addition skills.

Play by yourself or against a friend to form pairs. Match numbers, shapes, fractions, or multiplication facts to equivalent representations. The game can be used to practice facts by using the clear pane mode, or for an added challenge, play the game with the windows closed.

Use this pre-algebra tool to find numerical expressions that are equivalent to one another. If equivalent expressions are placed in the blue and red pans, the scale will balance.

This tool allows you to practice multiplying numbers. Great for IWB

You walk into a restaurant with a large group of friends. To accommodate you, the restaurant will push a bunch of tables together-but how many tables will be needed to ensure that everyone has a seat? This applet will let you explore that question. Has two modes: Exploration and Guess. Great to present whole class and then allow for individual group use.

Create a different types of graphs online then print, download, or email results. Best to demonstrate to students first as there a number of options.

Math manipulatives perfect for the interactive whiteboard. Search by grade level and strand. Teacher instructions and standards match are available for each interactive.