You're only 10 minutes late? Do you know how much the universe has expanded in those 10 minutes? Scholars graph supernovae based on their redshift and see if the results verify Hubble's Law. If it does confirm it, the universe is...

Cut it in half with a compass and straightedge! Using construction tools, a video shows how to create an angle bisector. The presenter points out what it means to bisect an angle in terms of the measure and distances from the sides of...

Learners discover a method for determining the slope of a line by creating and comparing similar triangles. They fold coordinate grids to make three similar triangles then measure the sides to compare the relationships between the...

Students explore aerodynamics and Bernoulli's principle by devising ways to keep bubbles aloft.

Students describe and compare the layers of the atmosphere. They explain how to measure the temperature of the atmosphere and discover what causes the atmosphere to heat up in some places more than in others.

Youngsters are introduced to the basic principles and uses of the wheel and the axle. They come up with every day examples of simple machines and look into why the wheel and the axle are best-used as a paired machine instead of used...

Here is a simple, yet clever lesson on how to teach the important concepts of greater than, less than, and equal to. Pupils write their names down on grid paper - one letter per box. They compare their names and find a name that is...

Your pupil's pet dog and bird are racing down the city streets. In order to know who is going to win, they better know something about calculating rates, the Pythagorean Theorem, and applying those topics to the map of the city. 

Upper graders solve problems involving measurement of squares and rectangles to practice multiplication skills, finding area, and calculating prices and percentages. A performance assessment is included.

Playing with matches (unlit, of course) becomes an engaging learning experience in this fun instructional unit. Teach pupils how to apply properties of exponential functions to solve problems. They differentiate between quadratic and...

Tenth graders distinguish between acids and bases. In this pH lesson, 10th graders view a PowerPoint and discuss the characteristics of an acid and a base. They investigate natural substances to determine the pH level of each.

By engaging in real life examples, learners practice measurement and conversion skills. They review a chart comparing pints, quarts, and gallons. Then, they complete a worksheet involving prices per unit. For example, they calculate how...

Students measure and apply their knowledge of proportion to solve problems. In this geometry lesson, students measure using a meter stick, small mirror and measuring tape. They compare and contrast their measurements to objects outside...

Students explore the physical properties of eggs. In this scientific observation lesson, students define characteristics of eggs, measure eggs vertically and horizontally, and use the scientific method to perform simple experiments using...

Students determine the height of objects using shadows. In this math lesson, students discus methods of finding the height of items without directly measuring. Students measure shadows and figure the actual height of the object.

Students participate in a review of diffusion and the basic properties of the cell membrane before exploring the process of osmosis in a lab activity. Using shell-less eggs that have soaked in various solutions, students make...

Middle schoolers investigate the different materials in their environment.  In this geology lesson, students collaborate in groups to examine the differences in sand, soil and gravel.  Middle schoolers utilize a magnifying...

Analyze data using technology. Middle schoolers design data investigations, describe data, and draw their own conclusions. Then they select the best type of graph, graph and interpret the data, and look for patterns in trends. They also...

Sixth graders engage in problem solving, communicating, reasoning, and connecting to represent and solve problems, using geometric models.

Fourth graders investigate the units of measurement used by various Native American tribes before they had contact with the Europeans. They write research questions, conduct research using a variety of resources, in small groups write a...

Students develop an understanding of measurable attributes of circles; develop a formula to determine the circumference of circles. They approximate the value of pi.

Students investigate density using film canisters filled with different density materials and larger objects of varying density. In this density lesson plan, students discuss the concept of density and rank film containers from dense to...

Students examine the four forces of flight. In this flight lesson, students test to see which types of items will fly. Students make predictions on whether the item will fly or not. Students gain knowledge about lift, gravity, thrust and...

Fourth graders experiment to find the effects of exercise on the heart rate.  In this exercise and heart rate lesson, 4th graders create questions about exercise and heart rate. Students use the scientific method to test and analyze...