How can heat power an engine? Scholars observe a heat engine working and control variables to determine the most efficient setup. They change the amount of heat input as well as the stroke length. Energy efficiency numbers prove the...

High voltage power lines deliver electricity to homes, but each home requires low voltage. How does the energy get converted so it can be used safely? Pupils explore alternating current and transformers through a simulation. They control...

Why are there launch windows when traveling to outer space? Scholars explore the trajectory of traveling from one planet to another. By adjusting the departure and destination planets, as well as the launch date, they observe the ideal...

Did you know that you can find added sugars in three-quarters of the foods you find in grocery stores? Invite your learners to consider how much sugar exists in the food products we eat on a day-to-day basis, as well as to learn about...

You do not have to be whole to be important. Individuals watch a video on the importance of rational numbers on the number line. Scholars use their knowledge to rename numbers on the number line as well as place rationals on a number...

Are your students wild about horses? Then introduce them Sandra Olsen, a  zooarchaeologist, who has been studying horses and the people who herd them. Ms Olsen responds to 15 interview questions and details how she goes about her...

Create your own exotic aquarium, well, virtual aquarium. Fill it full of various fish and sea life, add animation, color, and interactivity using JavaScript. This task utilizes your classes' knowledge of functions, parameters, and local...

Zap! Ouch! That hurts! But why? And how come people don't experience or respond to pain in the same way? Take a journey on the sensing pathway, from your nociceptors, along your nerves, up your spinal cord, to neurons and glial, through...

Is the transfer of energy different in bumper cars with stable versus bouncy bumpers? One of the variables explored in the simulation is bumper type; other variables are the mass and velocity of each car. This allows pupils to see the...

Does a yo-yo descend at the speed of gravity? The simulation explores angular speed and torque as a yo-yo is moved through a standard rotation. Scholars control the size and style of the yo-yo as well as the throwing speed. Challenge...

What makes some elements stable and others radioactive? Scholars adjust the number of protons and neutrons in an element then observe its decay. The simulation includes a graphical representation and the chemical formula, as well as...

What determines which ball rolls the fastest — the weight, the radius, the material, or something else? Scholars select two balls to race down the inclined plane, determining their material and radius. As they race, the simulation graphs...

During his first few games as the first black player in Major League Baseball, Jackie Robinson proved that he could withstand the wily curveball of Johnny Sain as well as the racial epithets shouted from opposing teams' dugouts. A short...

The United States Civil War forced Northern and Southern societies, as well as the people who made up those societies, to reconstruct their vision of themselves and their identities. A series of video-based web lessons look at the great...

Differentiating inverse trigonometric functions is quite different from applying the skill inverse functions. Scholars learn how to differentiate inverse trigonometric functions in the fourth of seven video installments in Unit 3 -...

One solves inequalities just like equations ... well, almost. Pupils watch a video lecture on solving linear inequalities. They practice solving inequalities, check their answers with the video, and continue to practice the concept with...

Determine how close the line is to the scatter plot. Clear video instruction shows how to plot a scatter plot and find the best fit line using the linear regression function on a calculator. Pupils use the information from the calculator...

This is just radical, dude. Learners view a video to learn how to multiply and divide radical expressions as well as the rules for multiplying numbers within the radicand. They also see how to rationalize the denominator. Examples...

Make sure the conditions are right. Pupils watch a video introducing conditional statements and their related statements. Learners find out how to identify the hypothesis and conclusion as well as write the converse, inverse, and...

It's time to show what you know! Individuals first review finding the area of polygons using the formulas from parallelograms to regular polygons. They then brush up on finding the area and circumference of circles, as well as reviewing...

Got milk? Only two cultures have had it long enough to develop the tolerance of lactose as an adult. Learn how the responsible genes evolved along with the cultures that have been consuming milk. This rich film is supplied with a few...

How does an airboat move when there isn't a motor in the water? The simulation teaches the forces related to the thrust and drag on an airboat. Scholars vary the boat mass and thrust force in order to view graphs of the changing force...

Do you weigh slightly less when an elevator first starts its descent? The simulation teaches the change in the force based on the acceleration, constant speed, or deceleration of an elevator. Scholars control the mass and acceleration...

Can a mother who weighs five times more than her child really be held in the air on a see saw by the child? A simple simulation demonstrates how this is possible through altering the distance from the fulcrum. Scholars can adjust the...