Curated OER
Mirror Images
Second graders explore vertical and horizontal symmetry. They make their own unique collages using symmetrical shapes that they have created from construction paper. Also, they practice making symmetrical shapes on the Internet.
PBS
Pbs Learning Media: Digit in Pursuit
The CyberSquad tracks Digit's position in time and then studies graphs to figure out what Hacker is scheming in this video from Cyberchase.
Science Education Resource Center at Carleton College
Serc: Investigating the Water Cycle "Snow Fun"
In this teacher directed inquiry indoor lab students collect snow in a cup. They will estimate how much water will be in the cup after the snow melts. Students will then make predictions about what will happen to the cup of water. After...
Khan Academy
Khan Academy: Coordinate Plane: Plot Ordered Pairs
Khan Academy: Coordinate plane: plot ordered pairs practices plotting an ordered pair on the x (horizontal) axis and y (vertical) axis of the coordinate plane.
Physics Classroom
The Physics Classroom: Vectors Motion and Forces in Two Dimensions
Three complete tutorials on vectors and two dimension forces and motion. Lessons include informational text, interactive activities, animations, and quick, interactive comprehension checks along the way.
University of Nebraska
Base Vectors and Vector Components
Defines base vectors and components with illustrations.
University of Nebraska
Vector Algebra: Base Vectors and Vector Components
Defines base vectors and components with illustrations.
University of Nebraska
Rectangular Components in 2 D
This resource provides a description of components of vectors and their notation.
University of Nebraska
University of Nebraska: Rectangular Components in 2 D
This resource provides a description of components of vectors and their notation.
Science Education Resource Center at Carleton College
Serc: Two Dimensional Motion and Conservation of Energy
In this physics lab students look at conservation of energy to find the horizontal velocity of a sphere in order to predict where it will land.
US Department of Justice
Us Department of Justice & Ftc: Horizontal Merger Guidelines [Pdf]
This resource presents the 2010 guidelines from the Department of Justice and Federal Trade Commission concerning horizontal mergers.
Physics Classroom
The Physics Classroom: Motion/forces in Two Dimensions: Projectile's Trajectory
This illustrated tutorial discusses the horizontal and vertical components of a projectile's motion; specific attention will be given to the presence/absence of forces, accelerations, and velocity.
Physics Classroom
The Physics Classroom: Vectors: Net Force Problems Revisited
Through interactive examples and practice problems, this tutorial helps students understand net force-acceleration problems in which an applied force is directed at an angle to the horizontal.
Physics Classroom
The Physics Classroom: Vectors: Forces in Two Dimensions: Addition of Forces
In this tutorial, examine the effect of forces acting at angles to the horizontal, such that the force has an influence in two dimensions- horizontally and vertically.
Physics Classroom
The Physics Classroom: Vectors: Resolution of Forces
This interactive tutorial helps students determine the components of a vector to better understand resolution of forces.
Alabama Learning Exchange
Alex: Connect With Coordinates
Students will be involved in hands-on activities that will help them to learn to locate points on a grid. Students will also learn how to correctly read an ordered pair of numbers. Technology will be implemented through the use of a...
Alabama Learning Exchange
Alex: Connecting With Coordinates
This lesson will allow students to practice plotting points on a grid. Students will have an opportunity to play a coordinate game. This lesson is hands-on and allows for cooperative learning. This lesson plan was created as a result of...
Math Open Reference
Math Open Reference: Horizontal Line
A complete reference guide to horizontal lines. It provides definitions, examples, and an interactive activity that enhances further explanation. Includes links to related topics.
Purple Math
Purplemath: Adding Polynomials
Demonstrates how to add polynomials using both the horizontal and vertical formats.
Math Open Reference
Math Open Reference: Horizontal
Learn about arc length with this handy reference guide. Provides a detailed definition examples, and an interactive activity that enhances further explanation. Includes links to related topics.
ArtLex
Art Lex: Horizon Line
Scroll down to find a definition of horizontal with hyperlinks to other definitions on the site.
Other
Art Education: Drawing in One Point Perspective
A fascinating interactive site showing how to use lines in on-point perspective drawings.