Using dimes to make change is another way to work with subtracting tens within 100.

This lesson begins with students visiting one web resource that gives them practice in counting money. The second resource goes one step further in that students are given opportunities to make change for make-believe purchases.

Learners will make predictions and conduct an experiment using marbles to figure out what types of things can cause a moving object to change direction. Included is a video of the instructional activity in action, pictures, discussion...

Lesson with multimedia resources for students learning about political change in Egypt and the Middle East, second in the series. Lesson includes videos, handouts and primary source material from which students make their analysis in...

If you like playing electric guitar, this could be a cool project for you. In this project you'll wind one or more of your own electric guitar pickups and test them out in an inexpensive electric guitar to understand just how electric...

Current and relevant learning resource from Brown University in which students explore the changing relationship between the U.S. and Cuba, interpret political cartoons and monitor news media coverage of U.S.-Cuba relations over time....

Throughout the activities in this investigation, students may have wondered how a boat made out of steel, which is more dense than water, can float. This activity addresses that question. Students will see that changing the shape of an...

Students explain that carbon dioxide from any source reacts chemically with water to form carbonic acid. They will also be able to use the color changes of universal indicator to monitor the changing pH of a solution during a chemical...

In this activity, students see that a can of regular cola sinks while a can of diet cola floats. As a demonstration, bubble wrap is taped to the can of regular cola to make it float. This high-volume but light-weight material increases...

The goal of this activity is for students to learn how to tell a story in order to make a complex topic (such as global warming or ozone holes) easier for a reader to grasp. Students realize that the narrative impulse underlies even...

Through hands-on activities, this instructional activity will show students that a force is a push or a pull and forces cause changes in motion. Included are a minute-by-minute lesson plan, activities, and teacher discussion points and...

In this interactive site, students practice various skills including finding the total, odd and even numbers, making change, and fractions by helping a farmer pick and sell his oranges and olives.

If you don't know that the incandescent light was a failure before it was a success, it's easy to write off some modern energy innovations like solar panels because they haven't hit the big time fast enough. Worse, the fairy-tale view of...

This lesson plan is based on two narrative picture books that can be compared and contrasted: When I was Five by Arthur Howard and Jamie Lee Curtis' When I Was Little: A Four-Year-Old's Memoir of her Youth. Students will need to think...

A 2006 first-hand account that analyzes how the finishing of the Three Gorges Dam will create a new mega-city where a small village now exists. This article also explains how this could create an economic boom in China, making it an...

This is a straightforward, fun project to measure the rate of the chemical reaction that occurs when Alka-Seltzer tablets are plopped into water. You'll track the volume of carbon dioxide gas produced at regular intervals after the...

This lesson explains how to change a sentence from the passive voice to the active voice.

Read and fill in the blanks of this passage properties and changes. Each blank has a dropdown menu with choices. When you finish, click CHECK MY ANSWERS. If you pick a wrong answer, the right answer will be displayed along with your choice.

Chances are, you have several materials around your house made of gelatinized materials. Gels are used in all kinds of products and materials: pudding, diapers, insoles, packaging, ice cream, toothpaste, and much more. In this project,...

Lesson in which learners construct timeline of at least five historical events with sections on activities, assessment, self-assessment, follow-up activities, and more.

The wealth of information and tools available on this site will assist students and teachers to develop and promote active awareness of the impact human beings have on the environment. Resources are provided to guide them in how to lead...

Just find out that you're going to be moving? Here are some ideas to help make the move easier for you.

The American Geological Institute has done an excellent job of defining and explaining evolution in this online booklet. Darwin, fossils, natural selection, and change over time are some of the concepts that are covered. Make sure to see...

In World War II pennies were made of steel and zinc instead of copper and women were working at jobs that men had always been hired to do. Why? Because during war times, scarcity forces many things to change!