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...

Direct and to the point (the slope at a point that is) describes this one-page proof of the derivative of the sin(x). The definition of a derivative using a limit is the first step in this sequential, algebraic, explanation of how...

What happened in the Supreme Court case of McCulloch v. Maryland? The resource teaches the specifics of the case with a video and provided discussion questions covering issues such as precedent and the Supreme Court as an equal branch of...

Extensive background material, clear objectives, and more are provided to help you teach an introduction to nuclear power. Learners will be able to explain how nuclear power is generated and how it compares to coal-created power. Provide...

Your learners will appreciate the complete picture of linear inequalities presented in this lesson plan. Starting simply with definitions and moving all the way to solving linear inequality word problems this activity is simple to...

Are learners heavy sighing at the idea of reading a primary source, written in a language that is difficult to understand and in cursive? Look no further, because the resource breaks down the Declaration of Independence in an...

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

Did you know strong bases can feel slippery and slimy? Lesson allows scholars to practice using the pH scale to identify acids and bases and their strengths. By changing the concentration of an acid and a base, they create the entire...

Administer a learning activity that challenges your class to use a number line in the form of lily pads. Learners are instructed to display the number of hops that Toad and Frog take during their journey on a number line. Young...

How do the laws of motion work in space? Learners explore Newton's laws of motion in different experiments as part of the Christa's Lost Lessons series. They rotate around the room in three stations to experience each law in action using...

Sweet and savory muffins, yum. Young bakers bake batches of these tasty treats to demonstrate their competence in the kitchen. A real recipe for success.

Use simulations to determine the probabilities of events to make decisions. Class members are presented with several scenarios, some with known probabilities and others without. Groups run simulations to gather data that they then...

Mathematicians need to know that not all numbers are rational. We approximate irrational number with rational numbers. That is why a calculator may be misleading. This task give learners an opportunity to see how rounding a number and...

Middle school scientists construct a working water wheel from an aluminum pie pan. Because of the sharp edges on the cut aluminum, this activity is for mature learners only. You could have your class compete to see whose wheel can lift...

The best part of learning about equilibrium is that nothing changes. Young chemists observe four demonstrations during this lesson: equilibrium in a saturated solution, equilibrium with an acid-base indicator, equilibrium with cobalt...

Are these two light sources the same? Groups use a white card and a little cooking oil to create a photometer that allows for the comparison of two lights. The Inverse Square Law provides a way to calculate the actual difference in...

Why is it so difficult to make two solid compounds react? Investigate the concepts of particle collisions and rate of reaction using a quick demonstration. The colorful experiment features two plain, white solids combining to form a...

Is it possible to change the color of clouds? A three-part activity explores the scattering of light by the water droplets that make up clouds. After observing a demonstration, curious scholars conduct their own investigations of the...

Without wind, the weather man wouldn't have much to talk about! Blow away your junior meteorologists with a creative demonstration of how wind works. The activity uses an empty soda bottle and compressible Styrofoam peanuts to illustrate...

What was it like to fit into a certain class with no choice in the matter? Learners experience the caste system in a role-play activity, work individually on handouts to enhance their learning, and participate in an evaluation activity...

Most Americans profess their love for the US Constitution, but this was not always the case. An informative lesson overviews the debate between the Federalists and Anti-Federalists by summarizing the main arguments of each side. It...

A two-part lesson asks young scientists to research the contributions of African American scientists at Bell Laboratories. After presenting their findings, class members watch two demonstrations that introduce them to total internal...

How do you balance a set of data? Using a ruler and some coins, learners determine whether the balance point is always in the middle. Through class and small group discussions, they find that the mean is the the best estimate of the...

Writing a number is all in the notation. The resource introduces the class to scientific notation. Pupils learn the process of taking a very large or small number in standard form and write it in scientific notation. To practice,...