This article describes the humble beginnings of our 16th president, Abraham Lincoln. Photographs are included. His path to the presidency was marked by determination and perseverance. Lincoln did not let the problems in his life stop him from exemplifying good citizenship and helping others. Clicking through the links provides varied information about his life.

The artist depicts contemporary versions of Abraham and Isaac in an allegory for the May 4, 1970, tragedy at Kent State University. A poignant visualization of humankind's struggle between ideology and paternal love, it mirrors the conflict that led to the death of four students at the hands of the Ohio National Guard. Though Abraham looks poised to strike his son, the artist emphasized that Genesis 22 ends without tragedy, as Isaac is spared.

Given the exact value, x, of a quantity and an approximate value, a, of the quantity, students use the absolute error, | a - x |, to compute the percent error by using the formula | a - x |/ |x| x 100%.
Students understand the meaning of percent error as the percent the absolute error is of the exact value.
Students understand that when an exact value is not known, an estimate of the percent error can still be computed when given a range determined by two inclusive values (e.g., if there are known to be between 6,000 and 7,000 black bears in New York, but the exact number is not known, the percent error can be estimated to be (1,000/6,000)(100%) at most, which is 16(2/3)%).

This website is a resource for Shakespeare's plays, sonnets, poems, quotes, biography, and the Globe Theatre.

This website contains four practice problems dealing with absolute value. An answer key is provided.

An introduction to piecewise functions using absolute value as a piecewise function of two linear functions.

This collection uses primary sources to explore The Absolutely True Diary of a Part-Time Indian by Sherman Alexie. Digital Public Library of America Primary Source Sets are designed to help students develop their critical thinking skills and draw diverse material from libraries, archives, and museums across the United States. Each set includes an overview, ten to fifteen primary sources, links to related resources, and a teaching guide. These sets were created and reviewed by the teachers on the DPLA's Education Advisory Committee.

Students will participate in a concept formation lesson designed to teach them an understanding of the concept absolutism. In order to develop comprehension of the concept, students will uncover the critical attributes of absolutism from analsyis of a series of examples and non-examples. Students will learn about the absolute monarchies in power during the age of enlightenment and examine contemporary examples. In the process of identifying the concept, students will also understand the similiarities and differences of constitutional monarchies and totalitarianism.

In this lesson, students will participate in a concept formation lesson designed to teach them an understanding of the concept absolutism. In order to develop comprehension of the concept, students will uncover the critical attributes of absolutism from analsyis of a series of examples and non-examples. Students will learn about the absolute monarchies in power during the age of enlightenment and examine contemporary examples. In the process of identifying the concept, students will also understand the similiarities and differences of constitutional monarchies and totalitarianism.

Students use light bulbs shining on a shiny can vs a black can and a beaker of water vs a beaker of soil to compare heating and cooling rates.

Students will conduct an activity to identify the effects of solar energy on our planet and its systems by observing how 3 colored soils absorb sunlight differently.

Students describe the comparative rates at which water and land surfaces heat and cool.

Students learn about abstinence. The following topics are covered: ?What Is It? ?How Does It Work? ?How Well Does It Work? ?Protection Against STDs ?How Do You Do It?

Students will consider the choices artists make when creating works of art that include people. They will consider style, medium, background, color, technique, and composition; compare images of women as represented by different artists; learn about where artists get their sources and inspiration.

Students will circle the abstract noun in each sentence and will write a sentence with each abstract noun provided.

In this lesson, students observe and discuss realistic and abstract portraits, and compare and contrast the differences. Students will then create a whimsical, abstract self-portrait in the style of Cubist artist, Pablo Picasso.

Computational thinking assists students to break down problems into smaller parts so that it is easier to understand and solve them. Abstraction is pulling out specific differences to make one solution work for multiple problems.

Students will consider the ways that artists respond to political and social events and ideas; think about sources of inspiration; learn about symbols and think about what they represent.

Students will consider the choices artists make with regard to painting, focusing on color, shape, composition, proportion, balance, style, and scale; learn how to discuss and compare nonrepresentational works of art; think about their relationship as a viewer to works of art and will consider how an abstract work can evoke a sense of atmosphere or place.