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

Abstract: Investigated whether program type or content have an effect on middle elementary school children's software preferences and whether gender differences surface when children choose software programs of different type and  ... more

Abstract: Investigated whether program type or content have an effect on middle elementary school children's software preferences and whether gender differences surface when children choose software programs of different type and content. Analysis indicated that children, regardless of gender, preferred a drill and practice mathematics program over the others.   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

Formerly titled the Gateway to Educational Materials (GEM) , the Gateway is a consortium effort to provide teachers with quality materials and tools found on federal, state and non-profit and commercial internet sites. "Your stat  ... more

Formerly titled the Gateway to Educational Materials (GEM) , the Gateway is a consortium effort to provide teachers with quality materials and tools found on federal, state and non-profit and commercial internet sites. "Your state affiliate and NEA have partnered with The Gateway to 21st Century Skills in an effort to provide you with free, comprehensive resources that will make your lesson planning easier. Here are just a few of the benefits you can expect to receive from your visit to the Gateway: * Access to thousands of quality learning resources through the latest in faceted search technology * Reinforce core content with learning resources from NASA, PBS, National Science Foundation and over 700 other contributing education content providers * Access to 21st Century teaching tools, assessments and professional development * Access to the Achievement Standards Network, a digitized version of every state's core academic standards "   less

A site dedicated to geography education, this is the main subject page which will launch to a list of sites within that subject. The first six of forty-two subjects are: * Alphabetical table of contents * Geography games * Hom  ... more

A site dedicated to geography education, this is the main subject page which will launch to a list of sites within that subject. The first six of forty-two subjects are: * Alphabetical table of contents * Geography games * Homework help * Geography news & quizzes * Maps/globes, mapping skills * Plate tectonics, continental drift Covers geology as well.   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

Apple Computer's repository of content for learning. The site showcases what they have identified as the best material for educators with extensive use of video and good teaching practice. Each learning resourse has the following  ... more

Apple Computer's repository of content for learning. The site showcases what they have identified as the best material for educators with extensive use of video and good teaching practice. Each learning resourse has the following components: * In-depth lesson plans * Standards * Assessment Practices * Student Work * Reflections * Parental Engagement * Administrative Support * Technology & Resources * Step Guides * Professional Development * Research * Resources for download   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