Gerald the giraffe longs to dance like everyone else, but his legs are too skinny, and he just can't seem to get it right. At the Jungle Dance, all the other animals make fun of him, except for the cricket, who shows him how he can be the best dancer of all.

The Girls Who Build Cameras workshop for high school girls is a one-day, hands-on introduction to camera physics and technology (i.e. how Instagram works!) at the MIT Lincoln Laboratory Beaverworks Center. The workshop includes tearing down old dSLR cameras, building a Raspberry Pi camera, and designing Instagram filters and Photoshop tools. Participants also get to listen to keynote speakers from the camera technology industry, including Kris Clark who engineers space cameras for NASA and MIT Lincoln Laboratory, and Uyanga Tsedev who creates imaging probes to help surgeons find tumors at MIT

The Girls Who Build: Make Your Own Wearables workshop for high school girls is an introduction to computer science, electrical and mechanical engineering through wearable technology. The workshop, developed by MIT Lincoln Laboratory, consists of two major hands-on projects in manufacturing and wearable electronics. These include 3D printing jewelry and laser cutting a purse, as well as programming LEDs to light up when walking. Participants learn the design process, 3D computer modeling, and machine shop tools, in addition to writing code and building a circuit.

In this activity, learners explore liquid crystals, light and temperature. Using a postcard made of temperature-sensitive liquid crystal material, learners monitor temperature changes. By observing these changes, learners show that dark materials absorb and reemit the energy contained in light more readily than light-colored materials. Learners can also distinguish energy absorbed and reemited by radiation, convection, and conduction by comparing the behavior of black, white, and silver objects. This resource guide includes detailed explanation of the phenomenon and background information about liquid crystals.

The purpose of this lesson is to engage students in a discussion of the Constitutional Convention. Students will explore the key disputes that arose during the Convention, including how power would be divided between the federal and state governments and the various branches of government. Furthermore, students with understand the importance of compromise during the Constitutional Convention. They will synthesize various sources explored debate and compromise and the Convention to understand the idea of civic discourse--discussion rooted in mutual respect for differences and a desire for understanding--in the United States.

In this lesson students will practice assertive communication, problem solving, and conflict management skills.

A small company wants to give raises to their 5 employees. They have $10,000 available to distribute. Imagine you are in charge of deciding how the raises should be determined.

A teacher discusses the importance of giving students a choice over what to write about, what to write with, and where to sit when they are writing. When given these choices, students are able to write more, they enjoy it more, and the quality of their writing improves.

Students present monologues in the "voice" of someone involved in child labor in England, respond to questions, and then discuss contemporary child laborers and compare them to the past.

Students write and record their own essays for a class blog by first completing a series of activities designed to get them thinking and writing about their experiences.

In this video from Nature, learn about the many different features and effects of glaciers in Ireland.

Adjust mountain snowfall and temperature to see the glacier grow and shrink. Use scientific tools to measure thickness, velocity and glacial budget.

Featuring images of glacier formations, this interactive resource adapted from the National Park Service explains what glaciers are, where they are found, how they form, and how they move.

This article provides an overview of the types of glaciers, glacial formation, movement and retreat, and how scientists are studying glaciers and their response to climate change.

The William A. Gladstone Collection of African American Photographs provides almost 350 images showing African Americans and related military and social history. The Civil War era is the primary time period covered, with scattered examples through 1945. Most of the images are photographs, including 270 cartes de visite. For the list of approximately 100 different photographers, see the Creator/Related Names Index.

Learn about the trailblazing, gender non-conforming performer Gladys Bentley with this digital short from Unladylike2020. Gladys Bentley fled her homophobic Trinidadian immigrant family in Philadelphia, PA at age 16 to join New York's Harlem Renaissance jazz scene as a cross-dressing performer. In a time when homosexuality was widely considered sinful and deviant, Bentley wore men's clothing -- a tuxedo and top hat -- and became famous for her lesbian-themed lyrics covering popular tunes of the day, and for openly flirting with women in the audience. In the 1950s, succumbing to pressure from the black church and McCarthy Era harassment of the LGBTQ community, Bentley said of her gender identity, "I am a woman again!" Constantly reinventing herself, Bentley challenged norms and pushed boundaries. Support materials include discussion questions, vocabulary, a research project on queer identity during the Harlem Rennaissance, and a close reading of Bentley's famous essay, "I am a Woman Again".

In this video adapted from the Encyclopedia of Physics Demonstrations, learn how a glass beaker vibrates at a specific frequency and how resonance can force it to shatter.

This task gives students an opportunity to work with volumes of cylinders, spheres and cones. Notice that the insight required increases as you move across the three glasses, from a simple application of the formula for the volume of a cylinder, to a situation requiring decomposition of the volume into two pieces, to one where a height must be calculated using the Pythagorean theorem.