Explore slopes of lines and see how slope is represented on the x-y axes. Graph a line with a given slope, use rise over run on the graph grid and determine slope when given the graph of a line. Ski Slope is the first of seven activities for teaching and learning linear equations in algebra: […]
Graph lines using a slope and a y-intercept. Identify the slope and y-intercept from the equation of a line in slope-intercept form. This activity is useful for algebra students learning to graph lines for the first time, or for students who may need extra help or review with this topic. y=mx+b is the second of […]
Focus on the basic structure and function of both lipids and carbohydrates, two of the four major macromolecule families in biological systems. It is recommended that you complete the “Introduction to Macromolecules” activity before doing this one.
Explore the structure and function of two of the four major macromolecules, lipids and carbohydrates. If you plan to do this activity then there is no need to do the “Introduction to Macromolecules” activity before this one.
This activity introduces the role of diffusion in supplying cells with nutrients and removing wastes.
Movement of ions in and out of cells is crucial to maintaining homeostasis within the body and ensuring that biological functions run properly. The natural movement of molecules due to collisions is called diffusion. Several factors affect diffusion rate: concentration, surface area, and molecular pumps. This activity demonstrates diffusion, osmosis, and active transport through 12 […]
In this activity, you will use a computer model to investigate the earthquakes and volcanic eruptions that have occurred around the world since 1960.
Explore how electric current works. Start at an atomic level and use interactive models to investigate how temperature can affect conductivity and resistivity in a substance by monitoring a virtual ammeter. Explore how factors such as resistivity and voltage affect the flow of electrons and learn about Ohm’s law. Students will be able to: Explain […]
How does electrical energy get from one place to another? In this unit, you will explore how electricity is moved around and transformed into other forms of energy.
What is electricity? Electricity is a part of modern life. Almost everyone has electricity in their house and uses it in dozens of ways all day long. But most people don’t know what electricity is or how it works! This unit will help you explore electricity.