Curated OER
Forms of Exponential Expressions
Your young physicists analyze the forms of four equivalent exponential expressions representing an amount of a radioactive material in a substance. They show how each expression is equivalent to the others and what aspects of the decay...
PBL Pathways
Students and Teachers 2
Examine trends in student-to-teacher ratios over time. Building from the first task in the two-part series, classes now explore the pattern of student-to-teacher ratios using a non-linear function. After trying to connect the pattern to...
Great Books Foundation
Discussion Guide for 1984
George Orwell's Nineteen Eighty-Four, published in 1949, can seem strangely prophetic when compared to modern news events and politics. Readers of Orwell's dystopian classic sharpen their critical thinking skills by engaging in...
It's About Time
Defy Gravity
Test the limits of gravity while encouraging full class participation with this thrilling lesson. Pupils investigate the meaning of work and how it is equivalent to energy. They explore the joule and apply it as a unit of work. They...
Other
Isabel's Esl Site: Present Continuous Tense
Focus on the present continuous tense, with explanations, examples, exercises, and comparisons to other forms. Some guidance in Spanish.
Other
Eclectic English: The Present Continuous Tense the Ing Form of Verbs
Learn how to correctly add the -ing ending to various types of words, and then practice by adding -ing to twenty-two verbs.