On this interactive site students learn how to show measurments in decimal notation, subtract decimal numbers, and divide or multiply decimal numbers by 10, 100 or 1000.

Activities and factsheets exploring ratios and proportions in everyday life. Interactive, colorful, and fun.

A good explanation and short history of scientific notation. Includes some examples.

[Free Registration/Login Required] Teachers will find a variety of worksheets, booklets, conversion charts, warm-up activities and more on measurements. There is even one activity that could be used in a French language class which...

This site gives a description of a multiplicative inverse, along with examples. There are links to related terms, everyday examples, challenging problems, more information, and the interactive check point involving multiplicative inverse...

This site provides details about histograms. The site contains a link on the step by step procedure of creating a histogram. There are links to related terms, everyday examples, challenging problems, more information, and the interactive...

This site gives the general definition of an N-gon polygon with examples. There are links to related terms, everyday examples, challenging problems, more information, and the interactive check point involving N-gon polygons located in...

This site describes the concept of oblique, expressing both triangles and three dimensional solids. Be sure to use the links to related terms, everyday examples, challenging problems, more information, and the interactive check point...

This site gives the general definition of a parallelogram with examples and questions for the reader to ponder about characteristics of parallelograms. There are also links to related terms, everyday examples, challenging problems, more...

The octahedron is defined and illustrated. Links access related terms, everyday examples, challenging problems, and an interactive checkpoint involving octahedrons and other platonic solids.

This site from InterMath gives a description of the orthocenter of a triangle along with a visual representation. Be sure to follow the links to related terms, everyday examples, challenging problems, more information, and the...

This site discusses coordinates in the Cartesian plane. The site gives some fundamental terms involving Cartesian coordinates and a graph with the origin and a point labeled. Be sure to follow the links to related terms, everyday...

This site defines dilation and gives an example with a diagram. There is also an interactive activity involving a JavaSketchPad page in which you can explore dilations. In addition, be sure to follow the links to related terms, more...

This site defines transformation and lists several different examples of transformations. Be sure to follow the links to related terms, everyday examples, challenging problems, more information, and the interactive check point involving...

This site gives a definition of angle of rotation and provides some examples. There is also an interactive activity in which a JavaSketchPad page is provided for you to explore rotations. In addition, be sure to follow the links to...

This site gives a description of parallel planes along with a visual representation. Be sure to use the links to related terms, everyday examples, more information, and the interactive check point involving parallel planes located in the...

This site gives a description and picture of intersecting planes. Be sure to follow the "More Information," and "Interactive Challenge," links located in the left-hand column for more information about intersecting planes.

[Free Registration/Login Required] This flipchart is designed to accompany fourth grade's Everyday Math (version 3) lesson 1.3, this flipchart explores different types of angles, triangles and quadrangles through engaging presentation...

[Free Registration/Login Required] This flipchart involves investigating various lengths in Metric and US Customary. Students will work on finding lengths to the sixteenths. The flipchart can be used with Everyday Math, Unit 10.

Use your counting skills to try to beat the computer in this simple interactive board game. This activity engages young learners in practicing basic counting with numbers from one to ten. Directions are presented orally.

How much water do you use everyday? Find out in this engaging investigation, where you compare your water usage with your classmates and other people around the world. An exploration filled with lots of math and science that students are...

Create a series of shadow boxes to form a complete silhouette of a dinosaur with this challenge. To complete this challenge, students will use everyday materials and this site to document their process.

Can you generate electricity from the flow of water by designing a waterwheel? In this challenge, students will be using everyday objects to create their waterwheel. This site contains a lesson plan, tips, and a place for students to...

A challenge for students to design and build a circuit using conductive everyday objects. This site also includes a lesson plan, tips, and a place for students to document their engineering design process.