Curated OER
Solving Right Triangles
Students investigate the basic trigonometric functions. In this geometry/trigonometry lesson, students explore strategies to solve right triangles using basic trigonometric functions. The lesson includes an application problem in which...
Curated OER
Geo-Critters (Geometry Critters)
Students read the book The Math Curse by Jon Scieszka and study geometry. In this geometry lesson, students identify geometric shapes and their properties. Students create a geo-critter.
Curated OER
Sled Kites and Trigonometry
Students study the history of kites and their fundamental properties. In this kites instructional activity students divide into teams and build and fly kites.
Curated OER
Perimeter and Area of 2D Shapes
Pupils find the perimeter and area of circles, triangles, and rectangles. In this perimeter and area lesson, the teacher gives students formulas for each shape and measurement and works through examples on the board. While no creative...
West Contra Costa Unified School District
Introduction to Trigonometric Functions
Scholars first learn the definitions of the sine ratio, the cosine ratio, and the tangent ratio. After mastering these definitions, they use the new information to solve triangles.
Curated OER
Understanding Categories of Shapes
What are these shapes? Here are four shapes with some common attributes: they each have four parallel sides and four vertices. Scholars identify a rectangle, rhombus, square, and quadrilateral. Because there is an explanation written...
Curated OER
Hidden Jewels of Geometry
Learners identify different geometric shapes, and arrange them artistically in original jewelry designs.
Curated OER
Quadrilateral Properties
In this online math worksheet, students answer "true" or "false" to a variety of statements regarding the properties of quadrilaterals. This excellent resource allows the students to check their answers, and to get "hints" should they...
Curated OER
Dilation
Tenth graders identidy and define various geometry terms, Students create exact replicas of a shape that is either smaller or larger than the original shape. Students prove that their entire shapes are larger or smaller in the same...
Quia
Ixl Learning: Adjacent Angles
Brush up on your math skills relating to adjacent angles then try some practice problems to test your understanding.
CK-12 Foundation
Ck 12: Geometry: Linear Pairs
[Free Registration/Login may be required to access all resource tools.] Identifying adjacent angles and vertical angles formed by intersecting lines
Quia
Ixl Learning: Supplementary Angles
Brush up on your math skills relating to adjacent angles then try some practice problems to test your understanding.
Cuemath
Cuemath: Adjacent
Let's read about the word of adjacent, look at examples, and learn how angles can be adjacent. Check out the interesting examples to know more about this lesson and try your hand at solving a few interactive questions at the end of the...
Shodor Education Foundation
Shodor Interactivate: Lesson: Angles
This upper elementary and middle school lesson plan introduces the concept of acute, obtuse and right angles. Also, as the instructional activity proceeds vertical, adjacent, alternate interior and alternate exterior angles are explored....
OER Commons
Oer Commons: Four Types of Angles
In this lesson, students learn about four types of angles: adjacent, vertical, supplementary, and complementary. They explore the relationships between these types of angles by folding paper, measuring angles with a protractor, and...
Math Planet
Math Planet: Pre Algebra: Angles and Parallel Lines
Explains angles and parallel lines through examples and a video lesson.
CK-12 Foundation
Ck 12: Geometry: Vertical Angles Grade 7
[Free Registration/Login may be required to access all resource tools.] Identify adjacent and vertical angles formed by intersecting lines and then find missing angle measures.
CK-12 Foundation
Ck 12: Geometry: Vertical Angles
[Free Registration/Login may be required to access all resource tools.] Identify adjacent and vertical angles formed by intersecting lines and then find missing angle measures.
Other
Nearpod: Angle Pairs
For this lesson on angle pairs, students explore the relationship betwen angles by learning about adjacent, complementary, supplementary, and vertical angles.
Purple Math
Purplemath: Quadrants and Angles
Explains how to model angles in the x,y-plane, and demonstrates how to extend the concept of trig ratios to angles larger than 90 degrees.
Oswego City School District
Regents Exam Prep Center: Special Right Triangles
A collection of lessons, practice activities, and a teacher resource that will aid your exploration and understanding of special right triangles.
CK-12 Foundation
Ck 12: Geometry: Linear Pairs
[Free Registration/Login may be required to access all resource tools.] Solve linear pair problems.
Texas Instruments
Texas Instruments: Numb3 Rs: Telling Time With the Sun
Based off of the hit television show NUMB3RS, this activity is a very basic introduction to the tangent function and it's applications (such as measuring distances). Through this lesson, students will learn the definition of the tangent...