American Museum of Natural History
What's This? Life at the Limits
There are some amazing ways species evolve to survive. From large ears to sneezing salt, learners read about these interesting adaptations in an interactive lesson. Great to supplement an in-class lesson, it also works well as a remote...
CK-12 Foundation
Expression Evaluation with Different Denominators: Adding Mixed Fractions of Water
An interactive challenges mathematicians to add mixed fractions with unlike denominators. Five questions—fill-in-the-blank and multiple-choice—build from one to the next leading the way to an open discussion about denominators and...
Curated OER
Letter Symmetry
In this online interactive letter symmetry worksheet, students enter up to 5 words of their choice in the space provided and click generate to find the lines of symmetry in each of the words.
Concord Consortium
Concord Consortium: Stem Resources: Is There Life in Space?
In this investigation, students will explore whether or not there can be life outside of Earth by using planet hunting models to discover how scientists find new planets. They will perform simulated spectroscopic measurements to...