Try out a resource using triangles to estimate radicals. An interactive app allows learners to approximate some irrational numbers involving square roots. They find the two consecutive numbers that an irrational number lies between...

Rubber ducky, you're the one ... to help solve equations. Young mathematicians use an interactive to set up a situation involving rubber ducks. This helps users visualize and solve an equation with variables on both sides.

Reinforce properties while solving equations. Learners often ignore properties even as they try to apply them. A well-designed lesson emphasizes the role of additive inverses when solving equations.

What's the likelihood of your class understanding probability maps? Young scientists explore the concept using a virtual dartboard in an interesting simulation. The darts establish a pattern around the bull's-eye, which provides a visual...

Why do different substances have different boiling points? Through an interactive lesson, learners explore how intermolecular attractions affect boiling points. They interact with molecules through an animation and make conclusions about...

Oxygen and carbon dioxide freely cross cell membranes. The simulation demonstrates the diffusion of these across a permeable membrane. To create a great visual for users, it graphs the balance of molecules as it changes throughout the...

Tired of blowing up countless balloons to illustrate orbital shapes around an atom? Give your lungs a break and use an interactive instead! Learners observe s, p, d, and f orbitals through the first four energy levels using hydrogen as a...

The more rectangles, the better the estimate. Using the interactive, pupils explore estimating the area under a curve using left-hand sums. Learners respond to challenge questions on how to get better estimates using the same technique.

Sum up the shortcuts. The interactive allows pupils to discover a shortcut in finding a partial sum of an arithmetic series. Learners use the shortcut to find other sums and to verify the process.

Fight against the current. Pupils explore the resulting path when they are crossing a river while being pushed downstream by the current. Using vector notation, learners express the speed and direction of a ferry. They finish by...

Need a bright idea for an engaging lab? Watch your class light up as they explore the difference in efficiency between incandescent and LED bulbs! The resource makes use of simple materials and encourages learners to infer what's...

Get big results out of a small-scale lab! Young chemists observe the electrolysis of sodium sulfate using a microscale experiment. A colorful indicator solution combined with the production of gas bubbles yields a variety of observations...

Explore particle motion between solute and solvents. An interactive simulation allows learners to observe the motion of solute particles as they interact with the solvent particles. It provides an option for including...

Chemistry and physics combine forces to benefit nanofabrications. Learners examine the process of wet etching in nanofabrication. Using corrosive substances such as lemon juice and Coca-Cola, they model the etching process. They then...

A house with no windows and a garden full of stinging nettles make the perfect home for Mr. and Mrs. Twit. The seventh lesson in an 11-part unit designed to accompany The Twits by Roald Dahl takes a closer look at the Twits' home...

Physics is like music—practice makes perfect! Challenge your class using an interactive that builds harmonic skills. The engaging lesson from a playlist exploring sounds and waves revolves around wave behavior in closed-end air columns....

This isn't rocket science, you know. A performance task has learners use right triangle trigonometry to calculate distances from stations on Earth to a satellite. It also requires finding the distance between two stations along the...

William Shakespeare's Romeo and Juliet, a play about star-crossed lovers, resonates deeply with teenagers. The study packet contains study questions for each act of the play. Learners use a graphic organizer to analyze whether characters...

How do you graph a sentence? Scholars do just that as they represent relationships between independent and dependent variables with a graphical representation. Given a sentence, they determine the pertinent relationship and create a...

Freedom of speech is absolute—or is it? The Supreme Court case Schenck v. United States has learners research what free speech really looks like. A short video along with paired work creates open discussion and thought on what speech is...

Can young economists right the fiscal ship of the United States before it sinks? Learners use an interactive simulation to navigate the waters of the federal deficit in an effort to curb the federal deficit. They make active decisions of...

To understand the concept of a county government system, scholars read a short passage, view a helpful visual aid, use the web to conduct some research about their local areas, and then answer related questions online.

Create emotional superheroes with a unit equipped with several activities and lessons designed to establish coping skills and practice tools that boost healthy habits. Through discussion, chants, writing, and drawing, scholars learn to...

Cesar Chavez believed so much in the cause of farmworkers that he put his money where his mouth was. Chavez quit his well-paying job to organize them into labor unions. Using a speech, photograph, and short biographical video, pupils...