Khan Academy
Khan Academy: Mathematical Procedures and Constants
With just the basic arithmetic operations, learn how to write programs to compute anything that a simple calculator can compute.
Khan Academy
Khan Academy: Computer Science: The Internet Protocol Suite
Learn about the many protocols that power the Internet, and how each protocol operates at a different layer, building functionality on top of the layer below it.
Richland Community College
Richland Community College: Math 116 Lecture Notes
This site from the Richland Community College provides the detailed lecture notes to a college algebra course, complete with equations and definitions. Content ranges from "functions and their graphs" to "conics and parametric equations."
Other
Freedom Forum: Lesson Plans for the First Amendment
These lessons address constitutional principles and contemporary issues involving the First Amendment. They intend to have explore how freedoms began and how they operate in today's world. Students will discuss just how far individual...
Indiana University
Center on Congress: Learn About Congress
Learn about the role of the US Congress, how it works, its history, and the principles behind its creation and operation. Wonderful set of resources including FAQs, short articles and video clips, "interactive learning modules" (i.e., a...
Georgia State University
Georgia State University: Hyper Physics: Bimetallic Strips
The operation of bimetallic strips is explained and illustrated. The principle of thermal expansion is related to their operation. A link to applications of bimetallic strips is provided.
Science Education Resource Center at Carleton College
Serc: Investigating Motors and Magnetism
Students will build a simple DC motor out of metal coat hangers, a 24-guage wire armature and field magnet, 14-guage wire brushes, and build the motor so that it rotates when connected to a 10-volt DC power supply. Students will...
Stefan Warner and Steven R. Costenoble
Finite Mathematics & Applied Calculus: Topic Summaries: Sets and Counting
The topic summary outlines sets and counting. Some topics reviewed are Venn diagrams, permutations, set operations, and addition principle. The resource consists of definitions, notes, and examples.
Other
Touro Law Center: William Marbury vs. James Madison
Transcript of the landmark court case that established the constitutional principle of judicial review. Judicial review is the concept that the federal judiciary has final power as to whether an act of the Congress or the Executive...
Incorporated Research Institutions for Seismology
Iris: How Does a Seismometer Work?
An overview of the basic components of a seismometer and physical science principles behind its operation.
Other
Advanced Thermoelectric: Fundamental Thermoelectrics
Discusses the scientific principles (the Peltier effect) and the reliability and operation of thermoelectric modules. Includes a link to several other pages, one of which contains an animation of their operation.
MadSci Network
Msn: How Does an Air Conditioner or Refrigerator Work?
From the Mad Scientist Network. Using a question and answer format, this page explains the answer to the question "How does An air conditioner or refrigerator work?" The scientific principles which underly their operation and the process...
MadSci Network
Mad Scientist Network: Building a Wimshurst Machine
Using a question and answer format, this page is a response to a question on how to build and use a Wimshurst machine. Directions and suggestions for building such a device are given. The principle of electrostatic induction which...
Other
Univ.of Delaware: Real Batteries and Battery Testers
A discussion of various principles related to voltage. The operation of battery testers and voltmeters are explained. The importance of the internal resistance of a power source is discussed.
Lizard Point Quizzes
Lizard Point: Subtraction Practice
At this site from Lizard Point Consulting, you can practice several different levels of difficulty of subtraction problems that use 1-digit numbers all the way up to 3-digit number subtraction problems that require regrouping. You can...
AAA Math
Aaa Math: Multiplying Fractions by Whole Numbers
Equating an integer with a whole number for these purposes, this lesson explains how to multiply fractions by an integer. Provides problems and games to work on this skill.
Curated OER
Hyper Physics: Bimetallic Strips
The operation of bimetallic strips is explained and illustrated. The principle of thermal expansion is related to their operation. A link to applications of bimetallic strips is provided.