Take an alternative route with trigonometry and let learners connect a tweaked version of the pythagorean theorem to the original in terms of triangle sides. The assignment leads participants towards deriving the Pythagorean identity...

Sixth graders explore symmetry and discuss the difference between a rotation and reflection. Using hands-on activities, such as folding paper shapes, they discover how to find the lines of symmetry and symmetrical characteristics. As a...

Students calculate the length of an arc that surrounds an angle at the center of a circle of radius.  In this kinetic equations activity students complete a lab and solve a kinematic equation.

Students review several articles on same current event, and then cover news issues themselves while assuming secret identities of various individuals who have vested interests in issue. Students write newspaper articles from these...

Pupils represent and solve problems using geometric models and apply geometric properties and relationships. They also practice constructing and measuring angles. By constructing, drawing, visualizing, and comparing geometric figures and...

On a four-page handout that contains 16 multi-step problems, pupils compute the value of various alternate, complementary, and supplementary angles created by intersecting lines and transversals. Answers are provided on the last two...

Let there be light! When your physics learners take this midterm exam, light will be their focus. They will show what they know about electromagnetic waves, interference, refraction, reflection, lenses, prisms, and more! The test is...

If both pairs of opposite sides of a quadrilateral are congruent, is the quadrilateral a parallelogram? This task asks learners to determine the answer and to support their answer with a proof. The resource includes a commentary for...

In this proving lines parallel activity, 10th graders solve 10 different types of problems that prove that various lines are parallel to each other. First, they find the value of x so that line a is parallel to line b. Then, students...

Review for the test with a comprehensive list of terms and concepts for the unit on congruence and similarity. It divides divides the sections in the order of the lessons presented during the unit. 

Is this enough to show the two triangles are congruent? Small groups work through different combinations of constructing triangles from congruent parts to determine which combinations create only congruent triangles. Participants use the...

Groups plan their escape carefully. Three three-tiered puzzles help a story character escape their situation, each involving integer sequences, transformations, and geometric constructions. The teacher resource includes...

Take a look at an organized physics course. The 34-section electronic textbook covers material in AP® Physics 1 and 2. Teachers use the text to supplement lectures and have the class work through the labs. Each section contains...

Students explore the relationships between angles formed by two lines cut by a transversal when lines are and are not parallel. They define key vocabulary terms, then using a camera take pictures at their school of parallel lines with...

Students create a Hexaflexagon using a formula. In this calculus lesson, students apply the definition of delta epsilon as it relates to limit to create a shape using creases. They relate the same rule to triangles and investigate angles.

In this triangle activity, students solve 1 word problem about the lengths of a triangle. Students determine the length of the longest side given the ratio of the angle measures.

Students create a silhouette by directing light at a person. They change the light, distance from the person and angle to make the shadows different. They are to describe the relationship between the light source and the object.

Students create different shapes by putting light on different objects. They change the distance from the object, the light source and angles to make the shadows different. They are to describe the relationship between the light, object...

Perhaps planning a city isn't so difficult after all. Scholars first perform geometric constructions and investigate how parallel lines are useful in real-world situations. They then work on a city design project, drawing street maps,...

A thorough math test divides the content into two 40-minutes sections, covering material through algebra and geometry. Problems incorporate analysis and applied problem solving.

 In this geometry worksheet, students construct lines that are parallel and perpendicular forming different angles. They differentiate between interior and exterior angles. Students identify the angles formed by a transversal and...

For this polar coordinates worksheets, pupils change ordered pairs from rectangular form to polar form. They plot and label points and identify alternative coordinate pairs for given points. There are approximately 20 problems on this...

Students explore the concept of triangles.  In this triangles lesson, students are to propose a plan for a ramp at their school.  Students use the Pythagorean Theorem and trigonometry to determine the length, height, and angle...

In this geometry worksheet, students identify parallel lines, examine and interpret diagrams, and find the value of corresponding angles and lines.  This one-page worksheet contains 6 multiple-choice problems.  Answers are...