Sophia Learning
Sophia: Similar Polygons and Their Perimeters: Lesson 5
This lesson presents the relationship between similar polygons and the ratio of their perimeters. It is 5 of 5 in the series titled "Similar Polygons and their Perimeters."
Sophia Learning
Sophia: Similar Polygons and Their Perimeters: Lesson 1
This lesson presents the relationship between similar polygons and the ratio of their perimeters. It is 1 of 5 in the series titled "Similar Polygons and their Perimeters."
Mathigon
Mathigon: Geometry: Transformations and Symmetry: Dilations
This lesson focuses on dilations, a dilation is a transformation that resizes a geometric shape, by making it bigger or smaller.
NOAA
Noaa: Estuaries 101 Curriculum: Chemistry in an Estuary
This activity introduces students to the complex chemistry of estuarine water. Students investigate how chemical and physical water quality factors-pH, temperature, dissolved oxygen, and salinity-change and interact over varying time...
Department of Defense
Do Dea: Ap Us History: Unit 6: Becoming a Modern Nation
This extensive learning module examines the role of large-scale industrialization, urbanization, and mass migrations in creating new demands on government and social organizations to design reforms, and looks at the global and domestic...
Other
Ontario Council for Technology Education: Model Greenhouse Construction [Pdf]
Students will design and construct a scale model of a greenhouse using the design process. Each student designs and builds a device that will act as a greenhouse in which to propagate plants from seed, that allows for easy access, and...
Texas Instruments
Texas Instruments: Do You Have a Temperature?
In this activity, students represent and analyze climate data. They use linear regressions to understand the relationship between temperatures measured in the Fahrenheit and Celsius scales and examine conversion factors.
National High Magnetic Field Laboratory
Magnet Academy: James Watt
The Scottish instrument maker and inventor James Watt had a tremendous impact on the shape of modern society. His improvements to the steam engine were a significant factor in the Industrial Revolution, and when the Watt engine was...
Illustrative Mathematics
Illustrative Mathematics: Calculator Trouble
Even though students can solve this problem by multiplying, it is unlikely they will. Here it is much easier to answer the question if you can think of multiplying a number by a factor as scaling the number. Aligns with 5.NF.B.5.
US Environmental Protection Agency
Epa: Determining the P H of Common Substances
In this acid rain experiment the students will be "determining the pH of common substances." This is a great lesson plan for an experiment.
US Environmental Protection Agency
Epa: Measuring P H Experiment
This is an activity that deals with acid rain. "This experiment will illustrate how to measure the approximate pH of chemicals in water using a pH indicator." It is easy to follow the comprehensive set of directions.
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