[Free Registration/Login may be required to access all resource tools.] Write quadratic functions in vertex form and find their vertex and intercepts.

This task can be used for assessment, practice or even to motivate students via an in-class discussion of why it is useful to rewrite exponential expressions in equivalent forms. Aligns with A-SSE.B.3.c.

National Humanities Center lesson explores the criticisms Thoreau makes about a representative democracy form of government. Lesson includes interactive assignments, teacher notes, strategies for Close reading, follow-up and vocabulary.

Information about the element, Oxygen, atomic number 8. Covers history, physical and atomic properties, abundance, and permissible exposure limits. Also discusses forms of oxygen, isotopes, sources, and uses.

Article discusses the importance of Lucy to the theory of evolution and her bipedalism form of locomotion. Archived.

This science fair project investigates whether video games, and other forms of mental distraction, have the power to relieve pain. You will research and learn about gatekeeper cells, which control how the brain perceives pain, and how...

Lesson where learners explore the emergence of the American system of democracy and political parties between 1820 and 1850. Using paintings by George Caleb Bingham and Richard Caton Woodville, and a political cartoon depicting the...

This site includes a vast amount of information regarding leadership. Topics include leadership styles, theories, and trends. Consists of a large number of links that allow for easy access to distinct topics.

Use this site to learn more about bays by discovering the Bay of Fundy. Read about this interesting place and view pictures of this beautiful bay.

The meaning and cause of refraction--as well as Snell's law of refraction--are discussed. Includes an interactive problem-solving form in which visitors relate angles of refraction to the incident angle and the indices of refraction.

The "variety" in the title of this piece comes in the choices you can make at the top of the page. You can scroll down to the minstrel show, or you can click on the words at the top of the page. The history of the minstrel show is...

Imagine something small enough to float on a particle of dust that holds the keys to understanding cancer, virology, and genetics. Luckily for us, such a thing exists in the form of trillions upon trillions of human, lab-grown cells...

[Free Registration/Login Required] Two slideshows on Commedia Dell'Arte. Includes character cards, each with a picture of the character and a short description, and dramatic form cardss, also with pictures and explanations. The latter...

Thorough overview of this less common form of arthritis that affects blood vessels. Includes information on symptoms, treatment, prevention, and much more.

It's hard to escape childhood without racking up a few scars. Why do these leftover reminders of a painful cut or crash look different from the rest of our skin? And why do they stick around for so long after the incident that caused...

In this video segment adapted from NOVA, dramatic footage of avalanches and animations of ice crystals illustrate how a layer of weakly-bonded snow can contribute to a devastating avalanche. [4:03]

The axial skeleton begins to form during early embryonic development. However, growth, remodeling, and ossification continue for several decades after birth before the adult skeleton is fully formed. Knowledge of the developmental...

This is the 3rd section of a PDF entitled Congress Creates the Bill of Rights. This section focuses on the articles debated in Congress that eventually formed the Bill of Rights. Background on each article is given as well as a picture...

This online lesson plan makes use of concrete poems to teach the structure and form of poetry. Uses a "Columbus Day," theme for the lesson plan, but can be used any time of the year.

From being viewed as a fad, hip-hop's commercial success has allowed it to permeate virtually all aspects of popular culture. By critically analyzing hip-hop music and comparing it with established music forms, the cultural relevance,...

A comprehensive article on the issues faced in assessing students who are deafblind, and on the effects vision loss has on their access to communication. Included in the article is discussion on the difficulties students who are...

This section of a chemistry textbook reviews the different forms of energy: kinetic, potential, and chemical.

A collective which looks at mass and energy. Identify the forms of measurement and how to convert them as well as scientific notation. Practice application with homework problems.

Students will learn about Queen Zenobia of Palmyra who led her soldiers to challenge the Roman Empire. Then, they will select another famous heroine from history and create a fictional Facebook profile for her as a form of biography....