Curated OER
Chromatography
Learners conduct various experiments on chromatography. In this chemistry lesson, students distinguish among the different types of chromatography methods. They explain how the stationary and mobile phase interact with each other.
Curated OER
So You Want to Buy a Painting
Twelfth graders research physical and chemical methods used in authenticating paintings (e.g., ultraviolet fluorescence and spectroscopy, infrared spectroscopy and reflectography, X-ray diffraction, microscopy, pigment analysis, and gas...
Curated OER
Basic Guide to Writing an Essay
Introducing your class to essay writing? The gentle tone, concise explanations, and clear examples provided by a 17-slide presentation introduces young writers to the expository essay format. All that's missing is a complete essay with...