This tutorial focuses on the use of commas in nonessential elements whether they are words, phrases, or clauses. Links to practice exercises are provided.

In Module 5 of this course on web design, students learn about the design elements of web page design. They learn about page layout, color schemes, typography, and site navigation.

To the extent that the composition of the ocean remains constant, the rate at which any one element is introduced into seawater must equal the rate of its removal. A listing of the various routes of addition and removal, together with...

An explanation and examples of interpretive claims and evaluative claims in a thesis statement. Click on list on the right for more information about elements of the essay.

This learning module focuses on analyzing story elements including the order of events, character, conflict, resolution, and plot. It provides a model story with questions and answers and then a practice story with questions.

Investigate the properties and characteristics of silicon. Students can study the element silicon and its chemistry including atomic weight, atom, uses, sources, name, and discovery.

Kids learn about the element argon and its chemistry including atomic weight, atom, uses, sources, name, and discovery. Plus properties and characteristics.

Kids learn about the element calcium and its chemistry including atomic weight, atom, uses, sources, name, and discovery. Plus properties and characteristics of calcium.

The classic treatise in geometry written by Euclid is presented in English. It is the textbook used for more than 1,000 years in western Europe.

Through an online slideshow format, learn about the chemistry behind Period 3 on the Periodic Table of Elements. The last slide has questions for students.

Literary terms are included in this assessment. This test assesses the following words: allusion, antagonist, dialogue, flashback, imagery, protagonist, symbol, dialect, hyperbole, idiom, irony, parody, pun, sarcasm, understatment, and...

This interactive game of "Match" assesses students' knowledge of story element definitions. Students will match the correct definition of a story element to its corresponding definition.

Discussion of ways to create new elements of increased atomic number and thus to create ever more massive elements that are not found on Earth.

Learn about the discovery of titanium, how it is produced, its physical and chemical properties, and what it is used for.

The structure of the atom is uncovered in this interactive tutorial. Discover the different particles of the atom and learn their charges and how they can affect the overall atom.

Contains plans for seven lessons that teach students about the plot structure, character, and setting of the mystery genre. In addition to objectives and standards, this instructional plan contains links to sites used in the lessons as...

In this essay on the Nez Perce conflicts you will read about how the tribe attempted to live within the treaties signed, but because of outside influences, could not.

A lesson plan in which students add affixes to alter the meaning of words. Materials are included.

As part of the General Chemistry Virtual Textbook, this site examines a variety of topics related to the Earth, and specifically the Earth's crust. Other topics covered include chemistry of the crust, composition of rock, distribution of...

Information about the element, Thorium, atomic number 90. Covers physical properties, atomic properties, how abundant it is on the Earth, where it is found, and details about health-related regulations. Discusses thorium's potential use...

Information about the element, Plutonium, atomic number 94. Covers physical properties, atomic properties, how abundant it is on the Earth, and details about health-related regulations. Discusses reactor- and weapons-grade plutonium, and...

Short synopsis and critical commentary on "The Interlude of the Nature of the Four Elements," a Medieval play with elements of a comedy and a morality. Also briefly discusses Thomas Lupton's "All for Money."

The team at Periodicvideos has created a TED-Ed Lesson for every element of the periodic table. Element number 118 still has the temporary name ununoctium and it is the final element on the current periodic table. [2:50]

The team at Periodicvideos has created a TED-Ed Lesson for every element of the periodic table. This one is about iodine, the pretty purple element, which is part of one of the professor's favorite chemical equations.