Right angles, acute angles, obtuse angles, central angles, inscribed angles: how many types of angles are there? Learners first investigate definitions of inscribed angles, central angles, and intercepted arcs. The majority of the...

Class members perform complex operations on a plane in the 17th segment in the 32-part series. Learners first verify that multiplication by the reciprocal does the same geometrically as it does algebraically. The class then circles back...

Young travelers plan a trip to Hilbre Island based on constraints on tides and time. They use a timeline to help determine the optimal day/time to make the trip.

In 2006, about 20 percent of the world's electricity was generated from hydroelectric power. In the presentation, scholars review the water cycle and gravitational energy to begin to understand how humans harness the power of water. They...

Get crafty this Groundhog's Day with a hands-on activity that combines creativity and making predictions. Scholars color, cut out, and put together a friendly image of a groundhog and showcase whether they feel the weather will be sunny...

Follow a teach, practice, and apply routine to provide extra support with a themed unit created by Houghton Mifflin. Topics include compound words, noting details, action verbs, suffixes, compare, and contrast, verbs, fantasy,...

Shed light onto the subject of happiness with a activity that focuses on how the emotion—much like other emotions—does not last forever. Scholars read brief passages and answer nine short-answer questions that examine their personal...

Here's a graphic that provides learners a place to record their ideas on any topic. After identifying a subject, they record their ideas within the follage of the tree.

If you feel like you're standing still, you're wrong! The Earth is constantly rotating and orbiting under our feet. Demonstrate the Earth's movement within the solar system with a collaborative activity. With a candle or lamp in the...

Apply the principles of geology to a series of collaborative, hands-on class activities. Young earth scientists learn more about igneous, metamorphic, and sedentary rocks before classifying and weathering rocks that they find....

Decide on the most efficient plan to supply drinking water. The second project-based learning task in a two-part series builds upon the first project. Pupils revisit the wells to supply drinking water, but they must make sure the...

How can your draw three-dimensional figures on paper? The lesson shows pupils how to draw orthographic projections of three-dimensional figures composed of cubes. After viewing a PowerPoint presentation, they practice this skill with...

Get crazy for crystals! Junior geologists learn the secrets of crystal formation through lecture, reading, and examples. Other topics include common ionic compounds found in fresh and salt water, the effects of location on forming...

Don't table the discussion on equivalent ratios — do it now! Scholars create tables of equivalent ratios to represent contextual problems. Pupils go on to use the tables to answer questions within the context. The lesson is ninth in a...

After watching West of the West's documentary on Catalina Island, The Magic Isle, class members research how Walt Disney's and William Wrigley's different visions impacted the island.

What does the sun mean to you? Learners have many different interests that may have connections to the sun. Whether its solar radiation, solar flares, or solar storms, there are connections to daily interests that may surprise your...

Wind it up and let it go. Individuals build a basic spool racer in the second portion of a six-part unit on energy. After receiving three criteria, pupils modify their designs to meet the new challenge. Pairs compete against each other...

How are animals in separate but nearby habitats related? Ecology scholars compare the animal inhabitants of the Gorongosa National Park in part seven of an eight-part series. Learners study photos from two different habitats, then...

Research indicates that marijuana can negatively affect coordination and judgment, making it dangerous to drive while under the influence. But does it increase the risk of car crashes? An informative fact sheet describes the ways...

We're all in this together! Show young scholars that peace is a process and having the support of like-minded people can make it happen. 13th in a series of 15 peace building activities, groups conduct research on a peace organization,...

Help your classes feel like they can walk on water! An engaging inquiry-based lesson has young scholars experiment with different surface coatings. They make observations about their properties and how they relate to the surface tension...

Latin American culture is deeply embedded in American culture as a whole. From the Latin rock scene in San Francisco to the hip-hop world of New York, Latin American artists have influenced every genre of modern music. Learn about the...

Just like you choose your clothes to ensure they fit the occasion, you should choose your words deliberately while writing. Style, the main topic of one handout in a series on writing skills, involves choosing words carefully and paying...

As many writers know, you are your own worst editor. The 10th installment in the Writing the Paper series explains that getting feedback from others is crucial to the writing process. The handout highlights the best time to ask others to...