Curated OER
What's The Idea?
Sixth graders explore line segments, rays, parallel, perpendicular and intersecting lines. The teacher discusses, with the class, real life items that represent each geometric idea studied. They use cotton balls, strings and popsicle...
Curated OER
Lines, Rays, Line Segments, and Planes
Students are introduced to lines, rays, line segments and planes. They explore the differences between lines, rays, line segments and planes. Students pracice graphing lines, rays, line segments and planes.
Curated OER
Lines, Rays, and Angles
Third graders read "Pigs on the Ball" by Amy Axelrod and discuss the geometry concepts presented in the book. They use Twizzler sticks and pipe cleaners to represent lines, rays and angles.
Curated OER
Rays and Angles
Learners view examples of a ray, opposite rays, collinear rays, angles, and straight angles. They discuss and demonstrate how to use a protractor and complete worksheet problems on rays and angles.
Curated OER
Line, Line Segments and Rays
In this geometry activity, students identify items as either lines, line segments or rays by checking the appropriate box beneath each figure.
Curated OER
Basic Geometry Ideas and Angle Measurement
Seventh graders explore the concept of basic geometry. In this basic geometry instructional activity, 7th graders identify the correct picture for a given vocabulary word such as midpoint, line, ray, or parallel lines. Students discuss...
Curated OER
Identifying Figures
In this identifying figures worksheet, students match 10 figures to the correct vocabulary terms that include lines, angles, shapes, and segments.
Curated OER
Which Way Do I Go? (Identifying Angles)
Fifth graders practice the concepts related to finding and identifying different angles. There are examples included in the lesson that are useful for the teacher to deliver the lesson.
Curated OER
Lines, Rays, Line Segments, and Planes
Students are introduced to lines, rays, line segments and planes and study the differences between them. They also practice graphing lines, rays, line segments and planes
Georgia State University
Georgia State University: Hyper Physics: Ray Diagrams for Mirrors
Provides a discussion of curved mirrors and ray diagrams. Shows and explains the process of drawing a ray diagram to determine the image location, size, and orientation.
Beacon Learning Center
Beacon Learning Center: Anglemania!
Students explore four types of angles in this interactive web lesson.
Oswego City School District
Regents Exam Prep Center: Geometry Vocabulary Resources
A list of geometry definitions and a matching activity.
Unite for Literacy
Unite for Literacy: Saving Animals From Extinction: Sawfish
Learn some facts about sawfish in this book. Includes audio narration in English and Spanish with text in English.
BBC
Bbc Nature: Wildlife: Stingrays
Discover the fascinating world of the stingray by learning about its distribution, behaviors, habitats, geological time periods, and classification through videos, news, photos, descriptions, and external links.
Encyclopedia of Life
Encyclopedia of Life: Spiny Rayed Fishes
Extensive resource examines spiny rayed fishes with a description, pictures, and maps. Includes facts on habitat, history, behavior, conservation, and external links.
Globio
Glossopedia: Skates and Rays
There are more than five hundred different species of skates and rays in our oceans. Scientists say that these fish are closely related to sharks, sharing a common ancestor from around 400 million years ago. This article provides an...
Houghton Mifflin Harcourt
Holt, Rinehart and Winston: Homework Help Independent Practice: Points, Lines, Planes and Angles
Get independent practice identifying points, lines, rays, planes and angles. Each incorrect response gets a text box explanation and another try. Correct responses are confirmed.
University of California
Ucmp: Introduction to Chondrichthyes
Good introduction from Berkeley's department of paleontology, gives a brief history and the defining characteristics of the class of Chondrichthyes.
Exploratorium
Exploratorium: Pinhole Magnifier
For elementary students, this would be a great demonstration on properties of light and optics. For middle school and high school, this would be a great start to a lab but needs experimentation. Site by Exploratorium.
Other
University of Cambridge: Alien Attack!
You are on a mission--find out which alien invader is trying to blow up Earth! Take part in wiping crime from the universe and feel good about yourself in the process.
Other
Pelagic Shark Research Foundation: Glossary
A glossary for terms relating specifically to sharks, many of which are relevant to the entire chondrichthyes class.
Other
Elasmo.com/guitarfish, Skates, and Rays
Brief overview of this lesser known group of Chondrichthyes. Links to the description of any of a variety of these fish.
Other
Sea Sky: Reef Life
The coral reef, its composition and inhabitants are explored here in detail. With additional information about the life that inhabits a coral reef.
NASA
Nasa: Space Place: What Is Infrared?
See images and read about examples of infrared rays, and learn how they behave in different conditions.