There was a time in the United States when voting was only for white men who owned property. This Library of Congress site tells you about the days when American women fought for their right to vote. Includes high quality historic images.

A huge collection of teacher resources in basic multiplication and division. Information on multiplication as repeated addition and division as repeated subtraction. Includes worksheets, games, PowerPoint presentations, smartboard...

Molly organizes her clothes in a pattern using functions.

A nonprofit trade association of software industry professionals defines the risks associated with the use of unlicensed software.

Young scholars are introduced to chemical engineering and learn about its many different applications. They are provided with a basic introduction to matter and its different properties and states. An associated hands-on activity gives...

This site introduces the iteration of circle inversions and describes the associated properties.

The basic identities and properties of addition and multiplication are listed. No explanation, simply the identities.

An easy to do activity that investigates the simple observable properties of sound waves. The activity is presented in lesson plan format that meets NSES standards.

Here at The Math Forum, Dr. Math offers interesting properties of orthocenters. Links are provided at the bottom of the page for information on associated topics.

Sixth graders are presented with a completed multiplication equation and are asked to use it to find the answers to seven other equations. To do this, they must use their reasoning and estimation skills. Aligns with 6.NS.B.3.

By now, students have learned that fact families include both addition and subtraction facts. They have also learned that by reversing the order of the addends, they can form related addition facts with the same sum. The students will...

A guide to support parents as they work with their students in multi-digit multiplication and division.

Students play a variety of learning games to explore number patterns by finding missing terms, using a calculator, and studying tables and a hundreds chart.

In this lesson on addition and subtraction within 20, 1st graders learn how to solve addition and subtraction story problems by finding clue words. Adding three addends is also taught in this lesson.

[Free Registration/Login may be required to access all resource tools.] This Concept expands upon the previous by discussing further the normal distribution and the probabilities associated with it by looking at the normal density curve.

Through two classroom demos, students are introduced to the basic properties of lasers through various mediums. In the Making an Electric Pickle demonstration, students see how cellular tissue is able to conduct electricity, and how this...

Students experience firsthand one of the most common water treatment types in the industry today, flocculants. They learn how the amount of suspended solids in water is measured using the basic properties of matter and light. In...

Students apply everything they have learned about light properties and laser technologies to designing, constructing and presenting laser-based security systems that protect the school's mummified troll. In the associated activity,...

This very thorough site examines the physical characteristics, adaptations and current research associated with the Green Sea Turtle. A quick quiz is also a part of this site.

Students explore the response of springs to forces as a way to begin to understand elastic solid behavior. They gain experience in data collection, spring constant calculation, and comparison and interpretation of graphs and material...

To get a better understanding of complex networks, students create their own, real social network example by interacting with their peers in the classroom and documenting the interactions. They represent the interaction data as a graph,...

Students complete this Beer's Law activity in class. Students examine the attenuation of various thicknesses of transparencies. From this activity, students will understand that different substances absorb light differently. This can...

Students are introduced to various types of energy with a focus on thermal energy and types of heat transfer as they are challenged to design a better travel thermos that is cost efficient, aesthetically pleasing and meets the design...

Surface tension accounts for many of the interesting properties we associate with water. By learning about surface tension and adhesive forces, students learn why liquid jets of water break into droplets rather than staying in a...