Can you disprove the law of conservation of mass? Pupils observe the teacher weigh each part of a reaction. Then, the teacher weighs the result of the reaction and everyone sees that the products do not equal the reactants. Then they...

Everyone enjoys combining baking soda and water. Here is a lesson that challenges scholars to analyze the reaction three different ways — the real substances, the chemical equation, and the molecular models. Class...

What happens if Mexico decreases tariffs on imported cars? Learners consider the question and others using authentic College Board materials. Other questions include evaluating the effects of government spending on a fictional country...

Learners consider production possibilities using an authentic test question from College Board. Other questions include practicing supply and demand curves and examining the effects of inflation, employment, and other variables on a...

A country experiences inflation. What options does the government have to control the problem? Using authentic materials from College Board, learners consider the problem. Additional questions explore supply and demand curves, as well as...

How could consumer confidence affect an economy otherwise operating smoothly? A prompt from College Board examines the topic. Other questions include exploring the production possibilities of two fictional nations and evaluating a...

To increase awareness and launch a discussion of consumerism, class members view What Would It Look Like, a 25 minute film of images that capture the global effects of the consumption of goods. Viewers make a list of the images that...

Nitrogen is an essential element for productive farming. An interactive lesson explores the chemical makeup of different fertilizers and their corresponding nitrogen content. The interactive challenges individuals to complete...

Bubble, bubble, boil and trouble! What causes common substances like baking soda and vinegar to react the way they do? Welcome your junior chemists to the wonders of acid-base chemistry using a comprehensive and fun...

Long before modern labor unions, guilds worked to ensure that workers had a fair wage. But, in medieval Europe, they also cooperated with the government. Using a simulation and primary source analysis, young scholars become hatters in...

Here is a tasty challenge, especially for middle school engineers: design a container that meets mass and volume criteria, and will safely transport a tortilla or potato chip through the mail without damaging it! Mostly, this is a crisp...

As physics masters view this presentation, they learn how nuclear power is used in submarines. They use Google Maps to plot a course through the ocean and calculate the time required for surfacing and traveling. They learn about fission,...

Agribusiness, human capital, productivity. Find out what your class members know about economic systems and terminology with this two-page economics worksheet that that asks kids to identify terms and concepts.

Is there a correlation between a country's wealth and the extent of its ecological footprint? What exactly constitutes an ecological footprint, and how does one country stack up against the rest? This is a unique lesson to incorporate...

The set for a play combines design elements (style, line, shape, mass, measure, position, color, and texture) and principles of composition (unity, harmony, contrast, variation, balance, proportion, and emphasis) to create a particular...

Once I told a chemistry joke, but there was no reaction. Get young chemists involved in changes and reactions with a presentation that begins with physical and chemical changes and chemical reactions. It moves on to chemical...

Substances with the same empirical and molecular formula must be differentiated by their structural formula. Part two in a series of 36 has pupils using chemical formulas to calculate how much of a compound is present in a given...

The Great Pacific Garbage Patch is one of several garbage patches around the world where garbage accumulates naturally. As part of a GIS unit that combines oceanography, environmental science, and life science, class members investigate...

A one-stop resource for exponents, square and cube roots, scientific notation, and volume formulas guides learners through properties of exponents. As they learn to apply these properties to operations with scientific notation,...

Newton's Laws get the rocket to work, but do they serve any other functions? A six-page resource classifies rockets by the type of propellant they use. It then describes applications of Newton's Laws of Motion, both in the...

What are fibersheds and what what do they have to do with environmental protections? A photo essay and audio recordings about Mimi Luebbermann, and her sheep, cause consumers to reflect on how their clothing choices can support local...

Experiment with 3-D glasses to learn about stereo images and virtual reality. Scholars look at various images to determine if green/red or red/cyan glasses are preferable. They determine distances between images using the 3-D glasses and...

Here's a presentation that not only covers momentum, impulse, conservation of momentum in both one and two dimensions, angular momentum, torque, and the moment of inertia, but offers many applied guided practice problems as well.

Not only do future engineers learn the difference between accuracy and precision, they also get some hands-on experience using different measuring tools.