National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Parabola Focal Point
Dr. Math discusses some of the "rules" of parabolas that are specific to the focal point.
Exploratorium
Exploratorium: Science Snacks: Hot Spot
An activity that will help students understand properties of mirrors by using a heater. Find the focal points by examining where the heat can be felt.
Ducksters
Ducksters: Physics for Kids: Lenses and Light
Kids learn about lenses and light in the science of physics including concave, convex, converging, diverging, focal point, meniscus, and Plano lenses.
Windstream
Ojk's Precalculus Study Page: Parabolas
Good study tutorial about parabolas. There are examples of finding the equation of the parabola or the focal point and directrix that students can examine and attempt.
Physics Classroom
The Physics Classroom: Lesson 3: Concave Mirrors
Lesson 3 of this tutorial on refraction is on concave mirrors. Content that is covered includes the anatomy of curved mirrors, reflection of light and image formation, ray diagrams, image characteristics for concave mirrors, plus more.
Physics Classroom
The Physics Classroom: Image Formation by Lenses
This lesson explains what lenses are, the different between a converging and diverging lens, the difference between a double convex and double concave lens, and gives definitions for terms related to lenses.
CK-12 Foundation
Ck 12: Concave and Convex Lenses
[Free Registration/Login may be required to access all resource tools.] Students describe and predict image formation as a consequence of refraction through a thin convex lens.
CK-12 Foundation
Ck 12: Plix Series: Double Concave Lenses
[Free Registration/Login Required] Change the focal point in this interactive concave lens to see how the focal length changes.After the activity, answer a challenge question to check for understanding.
CK-12 Foundation
Ck 12: Plix Series: Double Convex Lens: Convex Lens
[Free Registration/Login Required] Change the focal point in this interactive convex lens to see how the focal length changes. After the activity, answer a challenge question to check for understanding.
Khan Academy
Khan Academy: Thin Lens Sign Conventions
Have you ever wondered why some people need glasses and others don't? It's because of the way light is focused by the lens in your eye. This lens, like magnifying glasses, eyeglasses, and contact lenses, is considered a thin lens.
United Nations
Unesco: Historic Centre of Florence
This World Heritage website features Florence, a focal point for the Italian Renaissance. Found here are a description, a map, documents, many photos, a video on its significance, and any indicators of threats to its preservation.
United Nations
Unesco: Ferrara, City of the Renaissance, and Its Po Delta
This World Heritage website features Ferrara, a focal point for the Italian Renaissance in the 15th and 16th centuries. Ferrara is known as well as the place where modern town planning began. Found here are a description, a map,...
TeachEngineering
Teach Engineering: Stations of Light
Student groups rotate through four stations to examine light energy behavior: refraction, magnification, prisms and polarization. They see how a beam of light is refracted (bent) through various transparent mediums. While learning how a...
TeachEngineering
Teach Engineering: Introduction to Environmental Engineering
Students are presented with examples of the types of problems that environmental engineers solve, specifically focusing on air and land quality issues. Air quality topics include air pollution sources, results of poor air quality...
Other
Wrestling Hall of Fame
"America's shrine to the sport of wrestling, the National Wrestling Hall of Fame and Museum, is a focal point for the past, the present and the future. It preserves the heritage of the sport, celebrates new achievements, and encourages...
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.
Florida State University
Florida State University: Microscopy Primer: Concave Mirrors: Real Images
Florida State University offers an interactive Java applet demonstrating the object-image relationships for a concave mirror. The position of the object can be dragged along the principal axis and the location, orientation, and size of...
Alabama Learning Exchange
Alex: Ellipse
This lesson plan is designed for an Algebra II through Pre-Calculus classes and introduces the conic section- an ellipse. In this lesson plan students explore an ellipse, the set of points in a plane such that the sum of the distances...
Other
Tennessee Technological University: Civilization in Central America
An outline of important civilizations in Central America that includes the Olmecs, the Maya, the Toltecs, and the Aztecs. The Aztec civilization is the focal point of the outline, which gives the major points concerning their culture in...
Other
Television Production Handbook: Composition and Camera Movement
The importance of video composition and camera movement is the focal point of this site by Roger Inman and Greg Smith.
The College Board
College Board: Ap u.s History Ubranization [Pdf]
By 1900, America had become an urban nation in its dominant tone, in its economy and work, and in its culture and aspiration as well as its demography. Gradually-and then seemingly suddenly-cities emerged as the focal points of the...
Annenberg Foundation
Annenberg Learner: American Passages: Modernist Portraits: John Dos Passos
John Dos Passos is the focal point of this biography highlighting his politically charged contributions to American modernist literature. See "John Dos Passos Activities" for related artifacts and activities.
Other
Center for Technology and Teacher Education: Parabola Lesson Plan
This site is a lesson plan on construction of a parabola using the definition. Geometer's Sketch Pad software is beneficial for the lesson. Through the lesson students develop gemetric constructions of parabolas, use the distance formula...
Physics Aviary
Physics Aviary: The Way a Mirror Works Lab (Concave)
This lab is designed to have students investigate the relationship between the radius of curvature and the location of the focal point for a mirror like situation.
Other popular searches
- Emphasis Focal Point
- Visual Art Focal Point
- Focal Point in Art
- One Focal Point
- Concave Focal Point
- Art Lessons, Focal Point
- Art Lessons Focal Point
- Interior Design Focal Point
- Painting Focal Point
- Focal Point Art Lesson
- Focal Point Art
- Reflection. Focal Point