National Security Agency
Are You Game? A Lesson Connecting Fractions and Probability
Exactly how fair are the board games children grow up playing? Young mathematicians investigate this questions as they work their way through this five-lesson series on basic probability.
Curated OER
Fish In a Bottle
Students work together to build their own fish ecosystems. As a class, they share their prior knowledge about catfish and use a diagram to label its body parts. They record their observations of the ecosystem and determine what they...