Case study and history of the Tacoma Narrows Bridge hosted by the Washington State Department of Transportation. The is organized around connections, construction and machinery, art, social connections and design issues. There are  ... more

Case study and history of the Tacoma Narrows Bridge hosted by the Washington State Department of Transportation. The is organized around connections, construction and machinery, art, social connections and design issues. There are also lesson plans, glossary, timeline and trivia links. The first Tacoma Narrows Bridge, completed and destroyed in 1940, earned the nickname "Galloping Gertie." We use the "Gertie" label or "1940 Narrows Bridge." The bridge we drive over today was completed in 1950. A new bridge now under construction and scheduled for completion in 2007 is called the "2007 Narrows Bridge."   less

This site contains an online course on sound waves, music, and other related topics. The table of contents is as follows: Lesson 1: The Nature of a Sound Wave -Sound is a Mechanical Wave -Sound is a Longitudinal Wave -Sou  ... more

This site contains an online course on sound waves, music, and other related topics. The table of contents is as follows: Lesson 1: The Nature of a Sound Wave -Sound is a Mechanical Wave -Sound is a Longitudinal Wave -Sound is a Pressure Wave Lesson 2: Sound Properties and Their Perception -Pitch and Frequency -Intensity and the Decibel Scale -The Speed of Sound -The Human Ear Lesson 3: Behavior of Sound Waves -Interference and Beats -The Doppler Effect and Shock Waves -Boundary Behavior -Reflection, Refraction, and Diffraction Lesson 4: Resonance and Standing Waves -Natural Frequency -Forced Vibration -Standing Wave Patterns -Fundamental Frequency and Harmonics Lesson 5: Musical Instruments -Resonance -Guitar Strings -Open-End Air Columns -Closed-End Air Columns   less

"Amazing Space is a set of web-based activities primarily designed for classroom use, but made available for all to enjoy." Nice introductory lessons on subjects in astronomy. These lessons are: * Galaxies galore * Star light  ... more

"Amazing Space is a set of web-based activities primarily designed for classroom use, but made available for all to enjoy." Nice introductory lessons on subjects in astronomy. These lessons are: * Galaxies galore * Star light, star bright * Solar system trading cards * Hubble deep field academy * Astronaut challenge * Galileo to HST * The Truth about black holes * Comets   less

Math Goodies is a free educational learning tool, featuring interactive math lessons. The innovative lessons use a problem-solving approach and actively engage students in the learning process. We also offer Homework Help, Message  ... more

Math Goodies is a free educational learning tool, featuring interactive math lessons. The innovative lessons use a problem-solving approach and actively engage students in the learning process. We also offer Homework Help, Message Boards, Puzzles, Calculators, and much more! This learning tool is regularly visited daily by thousands of teachers, students, parents and homeschoolers from around the world; Math Goodies has become a very popular destination for K-12 math education. We invite you to join our growing community! The following is list of the many topics contained in the learning tool: - Interdisciplinary Studies Board - MATHCHAT - Classroom Gems - Educational Activities - Homeschooling Support - Homework Help - Interdisciplinary Studies - Math News and Events - New Teachers - Parents Place - Real World Connections - Teacher Talk - Lessons - Probability - Integers - Understanding Percent - Number Theory - Circumference & Area of Circles - Perimeter & Area of Polygons - Exercise Solutions   less

Learners read several pages of background material and then complete activities such as making a shadowplot in order to construct a small sundial for a necklace or keychain. The complete construction of a sundial involves the use  ... more

Learners read several pages of background material and then complete activities such as making a shadowplot in order to construct a small sundial for a necklace or keychain. The complete construction of a sundial involves the use of a protractor and the understanding of some trigonometric functions like sine and tangent. The lesson can be modified for three different levels, allowing a greater number of students to participate. A materials list is provided in the lesson plan. Lessons also available in PDF format.   less

learninginhand.com is an educator's resource for using handheld computing in schools. You'll find lists of great software applications for Palm and Windows Mobile computers. You'll find resources for podcasting and eBooks. Also, t  ... more

learninginhand.com is an educator's resource for using handheld computing in schools. You'll find lists of great software applications for Palm and Windows Mobile computers. You'll find resources for podcasting and eBooks. Also, there's a comprehensive listing of the best sites for educators, lesson plans, classroom management tips, and more. Don't forget to check out the blog for what's new and the discussion forums for lively conversations.   less

This program is a lesson on estimation.Other Authors: Mark Sobek  ... more

This program is a lesson on estimation.Other Authors: Mark Sobek   less

Lesson plans in language arts, math, science, social science, and miscellaneous. These are downloadable in plaintext files. Also indexes many lesson plans on other websites.  ... more

Lesson plans in language arts, math, science, social science, and miscellaneous. These are downloadable in plaintext files. Also indexes many lesson plans on other websites.   less

This learning object provides an online course on waves and wave mechanics. The following topics and sub-topics are covered: Lesson 1: The Nature of a Wave -Waves and Wavelike Motion -What is a Wave? -Categories of Waves  ... more

This learning object provides an online course on waves and wave mechanics. The following topics and sub-topics are covered: Lesson 1: The Nature of a Wave -Waves and Wavelike Motion -What is a Wave? -Categories of Waves Lesson 2: Properties of a Wave -The Anatomy of a Wave -Frequency and Period of a Wave -Energy Transport and the Amplitude of a Wave -The Speed of a Wave -The Wave Equation Lesson 3: Behavior of Waves -Boundary Behavior -Reflection, Refraction, and Diffraction -Interference of Waves -The Doppler Effect Lesson 4: Standing Waves -Traveling Waves vs. Standing Waves -Formation of Standing Waves -Nodes and Anti-nodes -Harmonics and Patterns -Mathematics of Standing Waves The site also includes links to sites containing information about many other topics in general physics.   less

This site contains an online course on refraction and other related topics. The following is a list of subjects covered in the tutorial: Lesson 1: Refraction at a Boundary -Boundary Behavior -Refraction and Sight -The Cau  ... more

This site contains an online course on refraction and other related topics. The following is a list of subjects covered in the tutorial: Lesson 1: Refraction at a Boundary -Boundary Behavior -Refraction and Sight -The Cause of Refraction -Optical Density and Light Speed -The Direction of Bending -The Secret of the Archer Fish Lesson 2: The Mathematics of Refraction -The Angle of Refraction -Snell's Law -Ray Tracing and Problem-Solving -Determination of n Values Lesson 3: Total Internal Reflection -Boundary Behavior Revisited -Total Internal Reflection -The Critical Angle Lesson 4: Interesting Refraction Phenomena -Dispersion of Light by Prisms -Rainbow Formation -Mirages -The Lengthening of Days Lesson 5: Image Formation by Lenses -The Anatomy of a Lens -Refraction by Lenses -Image Formation Revisited -Converging Lenses -Ray Diagrams -Object-Image Relations -Diverging Lenses -Ray Diagrams -Object-Image Relations -The Mathematics of Lenses Lesson 6: The Eye -The Anatomy of the Eye -Image Formation and Detection -The Wonder of Accomodation -Farsightedness and its Correction -Nearsightedness and its Correction   less