This four-lesson curriculum unit will examine the nature of what Winston Churchill called the "Grand Alliance" between the United States, Great Britain, and the Soviet Union in opposition to the aggression of Nazi Germany and Imperial Japan.

The decision of Britain's North American colonies to rebel against the Mother Country was an extremely risky one. In this unit, consisting of three lesson plans, students will learn about the diplomatic and military aspects of the American War for Independence.

This lesson unit is intended to help teachers assess how well students are able to: work with concepts of congruency and similarity, including identifying corresponding sides and corresponding angles within and between triangles; Identify and understand the significance of a counter-example; Prove, and evaluate proofs in a geometric context.

Allegories are similar to metaphors: in both the author uses one subject to represent another, seemingly unrelated, subject. However, unlike metaphors, which are generally short and contained within a few lines, an allegory extends its representation over the course of an entire story, novel, or poem. This lesson plan will introduce students to the concept of allegory by using George Orwell’s widely read novella, Animal Farm, which is available on Project Gutenberg.

In this lesson plan, students will learn about the 12 animals of the Chinese zodiac. In the introductory first lesson, they will see how animals are often used as symbols. In the second lesson, they will hear one of several versions of how the 12 animals were chosen. They will then focus upon a few of the animals in the story and see how they can be used as symbols of certain human characteristics. In the third lesson, they will be introduced to the other animals of the zodiac, and they will be given a chart on which they will assign traits to each animal. Then they will consult a number of websites to find the traits traditionally associated with the animals, which they will add to their list. Then, they will come up with a number of ways to compare and contrast the animals in the list. In the third lesson, they will focus upon the animal associated with the year of their birth, learning about its traits and discussing whether or not these apply to themselves and their peers. Finally, each student will make an acrostic, combining the letters of his or her first name with adjectives that relate to his or her zodiac sign.

Drawing upon the online archives of the U.S. Holocaust Museum, this lesson helps students to put the events described by Anne Frank into historical perspective, and also serves as a broad overview of the Nazi conquest of Europe during World War II. After surveying the experiences of various countries under Nazi occupation, the lesson ends with activities related specifically to the Netherlands and Anne Frank.

This lesson concentrates on Anne Frank as a writer. After a look at Anne Frank the adolescent, and a consideration of how the experiences of growing up shaped her composition of the Diary, students explore some of the writing techniques Anne invented for herself and practice those techniques with material drawn from their own lives.

Before conducting this activity, educators may want to discuss historical information about racism and diversity issues. In the story The Sneetches, written by Dr. Seuss, yellow bird-like creatures take students on an adventure where green stars become the symbol of discrimination and privilege. After reading the story aloud, let students participate in the following activities that can be adapted with or without the story.

This lesson unit is intended to help you assess how well students are able to use geometric properties to solve problems. In particular, it will support you in identifying and helping students who have the following difficulties: Solving problems relating to using the measures of the interior angles of polygons; and solving problems relating to using the measures of the exterior angles of polygons.

The Bedouins of ancient Arabia and Persia made poetry a conversational art form. Several poetic forms developed from the participatory nature of tribal poetry. Today in most Arabic cultures, you may still experience public storytelling and spontaneous poetry challenges in the streets. The art of turning a rhyme into sly verbal sparring is considered a mark of intelligence and a badge of honor. Students will learn about the origins and structure of Arabic Poetry.

Create your own shapes using colorful blocks and explore the relationship between perimeter and area. Compare the area and perimeter of two shapes side-by-side. Challenge yourself in the game screen to build shapes or find the area of funky figures. Try to collect lots of stars!

Build rectangles of various sizes and relate multiplication to area. Discover new strategies for multiplying algebraic expressions. Use the game screen to test your multiplication and factoring skills!

Remember your multiplication tables? ... me neither. Brush up on your multiplication, division, and factoring skills with this exciting game. No calculators allowed! The students will be given mutiplication and division problems which they must answer. They also have the option of being given a number then stating the factors of how that number was attained using either multiplication or division.

Remember your multiplication tables? ... me neither. Brush up on your multiplication, division, and factoring skills with this exciting game. No calculators allowed!

Brush up on your multiplication, division, and factoring skills with this interactive multiplication chart. Three levels and timed or untimed options are available.

Organized around the compelling question "How have Asian Americans and Pacific Islanders engaged civically and contributed to U.S. culture?" and grounded in inquiry-based teaching and learning, this lesson brings history, civics, and the arts together to learn about the experiences and perspectives of Asian Americans and Pacific Islanders (AAPI) in U.S. history. Primary sources, literature, and works of art created by AAPI individuals and related organizations provide an historical as well as contemporary context for concepts and issues including civic participation, immigration, and culture.

Explore the interactions between various combinations of two atoms. Turn on the force arrows to see either the total force acting on the atoms or the individual attractive and repulsive forces. Try the "Adjustable Attraction" atom to see how changing the parameters affects the interaction.

Explore the interactions between various combinations of two atoms. Turn on the force arrows to see either the total force acting on the atoms or the individual attractive and repulsive forces. Try the "Adjustable Attraction" atom to see how changing the parameters affects the interaction.

The Aztec capital of Tenochtitlan was the hub of a rich civilization that dominated the region of modern-day Mexico at the time the Spanish forces arrived. In this lesson, students will learn about the history and culture of the Aztecs and discover why their civilization came to an abrupt end.