Curated OER
Similarity and Congruence
Students determine that two figures are similar or congruent by
investigating figures that are similar and figures that are congruent. They prove that two figures are similar or congruent by using definitions,
postulates, and theorems.
University of Texas
Free-Body Diagram
Preparing for an AP test is about more than bubble sheets and memorization. The two activities in this resource require a direct application of skills learned throughout an AP Physics course.
Curated OER
The Luxor Hotel Contract
High schoolers determine the surface area of the Luxor Hotel, using the square feet of the base, volume, and the volume formula. They create a scale model of the triangular/pyramid shaped hotel.
Curated OER
Congruent Triangles Postulates
Young scholars discover three lettered postulates that prove triangles congruent.
Curated OER
Studying Special Segments in Triangles
Pupils investigate special segments in triangles. In this geometry lesson, students graph, compare, estimate and predict findings based on their data. They differentiate between similarity and congruence of triangles.
Curated OER
New York State Testing Program: Mathematics Book 2, Grade 5 2008
In this 5th grade math standardized test practice activity, students solve 18 multiple-step open-ended math problems based on New York academic standards.
Curated OER
CSI Investigation
Students solve real life situation using the Pythagorean Theorem. In this geometry lesson plan, students calculate the length, midpoint and slope of segments. They solve word problems using properties of square roots.
Curated OER
Mapping a Site Using a Coordinate Plane
Learners map their playground as if it were an archeological site. They locate objects on the playground and determine their location using coordinate points. A related instructional activity is Coordinate Grid: Mapping an Archeological...
Curated OER
Constructing Triangles
In this constructing triangles online worksheet, learners construct thirteen triangles on paper first and then type in their answers on line. Students can check their answers as they go and the computer calculates the overall score for...
Curated OER
Hidden Jewels of Geometry
Students identify different geometric shapes, and arrange them artistically in original jewelry designs.
Curated OER
High School Mathematics Problems from Alaska: Azimuth and Arc Length
Young scholars track the Azimuth sunrise and sunset over time by creating a chart.
Curated OER
Design Your Space
Students evaluate the acceptable use of classroom space. The class participated in a brief lecture and discuss of floor plans and how they are used in architecture. Using graph paper, they create a scale drawing of the classroom...
Curated OER
Triangles
Students draw triangles. In this shapes instructional activity, students discuss what they already know about triangles, what they are and what they are made up of. Students discuss the types of triangles and practice drawing each type.
Curated OER
Light
Students examine how light waves travel. In this properties of light lesson, students observe how light travels in water, how light is reflected and refracted, and how light is pure energy.
Alabama Learning Exchange
Trapezoids: What's Equal or Right About Them?
Pupils explore the concept of trapezoids. In this trapezoids instructional activity, learners identify legs and bases of a trapezoid. Pupils discuss the similarities and differences between isosceles trapezoids and right trapezoids. ...
Curated OER
For Better or Worse: Cultural Exchange
Learners participate in a cultural exchange program with a Native American school in Winnebago, Nebraska. They conduct research on a variety of Native American tribes, prepare a presentation that represents the culture of their school...
Curated OER
Our Class Record Book
Second graders, in groups, prepare a list of proposed record ideas for the class book.
Curated OER
Pendulum Lab
Students predict how changing the pendulum components affect its period. For this physics lesson, students calculate the period using different masses. They analyze lab result and complete assigned worksheet.
Math Open Reference
Math Open Reference: Angles
Everything you wanted to know about angles and more, including 1) how to measure angles 2) types of angles 3) angle relationships and 4) angles around a transversal.
Sophia Learning
Sophia: Measuring Angles With a Protractor
Students learn how to measure angles with a protractor. Detailed examples are included in the video lesson.
CK-12 Foundation
Ck 12: Geometry: Angle Measurement Grade 6
[Free Registration/Login may be required to access all resource tools.] Learn how to use a protractor to draw angles.
Science Struck
Science Struck: Devices Used to Measure Angles
Looks at the many devices used to measure angles in academic settings and in real-world settings.
Science Struck
Science Struck: How to Use a Protractor to Measure and Draw Angles
Step-by-step instructions accompanied by illustrations that demonstrate how to use a protractor to draw angles and to measure angles.
CK-12 Foundation
Ck 12: Geometry: Angle Measurement Grades 8 10
[Free Registration/Login may be required to access all resource tools.] Find angle measures using a protractor and the Angle Addition Postulate.