How similar do figures have to be to be similar figures? Individuals learn to identify similar figures by verifying that angles are congruent and sides are proportional. Additionally, they match the corresponding parts of similar figures.

Tenth graders investigate parallel lines and their special angles cut by a transversal. In this geometry lesson, 10th graders identify and find corresponding, alternate interior, and alternate exterior angles formed when parallel lines...

Students identify the six trigonometric ratios and properties. In this trig lesson, students define basic trig functions as it relates to solving right triangles. They identify the equation for sine as o/h and cosine as a/h and tangent...

Learners work together to research and present their findings on the 20th century archaeological phenomenon of Ötzi the Iceman! This is a well-organized worksheet that guides class members through researching the story of the find,...

Learners discover a method for determining the slope of a line by creating and comparing similar triangles. They fold coordinate grids to make three similar triangles then measure the sides to compare the relationships between the...

This activity guides learners through an exploration of common transformations of the graph of a function. Given the graph of a function f(x), students generate the graphs of f(x + c), f(x) + c, and  cf(x) for...

Express dance moves mathematically. Scholars dissect dance routines and express them using mathematical notation, such as translations and rotations. They use video clips to investigate seven different dance genres.

The longer you wait to try the new pizza place, the more it's going to cost you! This real-world problem about how the cost of pizza varies with respect to time is a good example of how piecewise functions are used to describe...

Practice working with different phonemes in consonants and vowels. Sounds are written on squares that get put on a rocket to "blast off" and meet other sounds. The teacher first models blending, then reads the new words. Young readers...

Students examine human health by researching the internet. In this human sexuality lesson, students utilize the web to locate a website which contains information about a certain sexual aspect. Students create a group presentation on one...

Students determine what factors effect the period of a pendulum.  In this pendulum lesson students complete a lab activity and report their findings. 

Students are introduced to the concept of variables and their uses. In groups, they are given a code in which they must find the value of the missing words. To end the lesson, they find the value of words over ten letters long and their...

Students visit grounds where hidden letters are revealed. Once the hike is finished the jumbled letters are pieced together to spell a single theme word. The word offered here is Diversity, which at nine letters, means nine stops.

Students identify with various programming texts; introduce material in different orders; and emphasize different concepts. Students read an introduction to LiveTexts; complete various activities; discover and apply its Global features...