Other
Univ. Of West Georgia: Analyzing the Leadership Behavior of School Principals
This academic document describes various methods of measuring a principal's leadership behavior. The authors developed a new survey instrument that can be used to analyze the leadership behavior/style of a principal.
Texas Instruments
Texas Instruments: Simple Programs to Apply Formulas
Students learn how to write simple programs to evaluate formulas in several variables for lists of data. They apply these skills to the computation of areas, volumes and surface areas of familiar geometric solids.
TED Talks
Ted: Ted Ed: The History of the Barometer (And How It Works)
A barometer is an instrument that measures air pressure, allowing weather forecasters and scientists to better predict extreme weather events. Despite its incredible usefulness, inventing the barometer was no walk in the park. Asaf...
Other
Hellenica World: Ancient Greek Medical Inventions
Learn about various medical devices invented and used by the ancient Greeks including "a portable waterclock used to measure the pulse of patients" and a "surgical instrument, known as 'the spoon of Diokles.'"
Texas Education Agency
Texas Gateway: Sound Interference and Resonance: Standing Waves in Air Columns
By the end of this section, you will be able to define antinode, node, fundamental, overtones, and harmonics; identify instances of sound interference in everyday situations; describe how sound interference occurring inside open and...
NASA
Nasa Earth Observatory: Clouds in a Clear Sky
This article introduces the different layers of the atmosphere and the clouds that are formed there. Scientists use instruments such as the SAGE 11 that help to measure amounts of sunlight, water vapor, and other conditions that affect...