Understanding the concept of equality is fundamental to the success of young mathematicians. To explore this basic idea, children compare the dots arranged in pairs of rectangles in order to determine whether or not they contain an equal...

With instructions to adapt the activities for any grade K-12, any teacher can incorporate the concept of scale into the classroom with a simple, yet effective lesson.

Intended to supplement your existing cell function and organelle lessons, pairs work together to develop a real-world analogy for cell structures. In addition to writing paragraphs about the comparison, each group will make a short...

You can create a camera with even the most unassuming materials. Learners view photographs and talk about the art. Some background information is included about the camera obscura for you to present before individuals make their own...

What can one learn about a planet based on a small surface sample? Learners will explore artifacts from a mystery planet and see what they can determine about the planet based on the evidence in front of them. 

Twelfth graders discuss the creation of the United States, the Articles of Confederation and the Constitution. Through a class debate, role-playing Federalists and Anti-federalists, they identify the reasons for and against ratification...

This lesson certainly will not be a drag! Little engineers design parachutes that make use of air resistance and, as a result, slow the descent of the payload as much as possible. It is an opportunity to teach about many motion concepts:...

How much time does it take to jump over three balloons? Pupils calculate the speed of tasks that require different motions. They determine motions for tasks such as walking, skipping, hopping, and jumping before creating a...

Word problems offer class members an opportunity to learn the concept of solving linear systems using graphs. Individuals choose a problem based upon preferences, break into groups to discuss solution methods and whether there...

The tension builds as learners experiment in your classroom. The 17th installment in a 24-part series has scholars investigate the concept of surface tension. After discovering characteristics of surface tension, they add a compound...

Why do rocks break down over time? Learners explore this concept by simulating physical and chemical weathering of different types of rocks. They use an abrasive to demonstrate physical weathering and acid to demonstrate chemical...

We know that sample data varies — it's time to quantify that variability! After calculating a sample mean, pupils calculate the margin of error. They repeat the process with a greater number of sample means and compare the results.

Is your class studying President George H.W. Bush? If so, they can learn how he became president and some of the economic problems he faced in office by reading this brief informational text. There are three questions to answer below the...

Students identify and recognize three dimensional objects that are utilitarian and used in the everyday life of the people of eastern and southern Africa. They examine the conception, planning, and skillful execution that went into each...

An engaging instructional activity delves into the effects of slavery on society. Young historians read text excerpts, complete handouts, and participate in group discussion to understand how slavery was a means to control society and...

Minerals on Mars are not that different than those on Earth. Using mineralogy concepts and satellite images, individuals use color to highlight the different surface minerals on Mars when creating a model of the planet. They enhance...

Your land is my land! Young historians investigate the concept of Manifest Destiny used by the United States government to justify western expansion. Jigsaw groups read primary source documents to gain an understanding of the movement...

Now that geometers know how to solve for square units, can they solve for cubed units? Explore this concept as scholars examine four cubes to solve for volume in each. A detailed example explains this process, but you may consider asking...

How can you show that an item is colder than something else? Or that it is more beautiful? Use a worksheet to reinforce the concept of comparative adjectives. With fill-in-the-blanks, word banks, and multiple choice questions, the...

Never forget how to add, subtract, multiply, or divide fractions with a two-page document detailing each operation. 

Exponents may have your pupils' heads spinning after an engaging lesson as they connect properties to tornadoes! Learners compare a distance between cities to the distance across a solar tornado. They use exponent properties to find the...

Catch a great resource! Individuals use an interactive that allows them to move players on a baseball field. They calculate distances between players using the Law of Cosines.

Baseball is all about math. Young baseball and mathematics enthusiasts determine the distance between players on a baseball field using the Law of Cosines. An interactive helps them find relevant distances and angles to use in their...

Zip this resource into your lesson plans. Here is an interactive that shows how angles and lengths change based on conditions for a zip line. Scholars use the Law of Cosines to solve problems in this context.