Curated OER
Bagel Algebra
Ninth graders apply proportional reasoning to a real-life situation. For this Algebra I lesson, 9th graders explore a series of equations that relate to a display sign that compares the owner’s bagels to competitors bagels. Students...
Curated OER
Statistical Sampling
Students collect data in the field and analyze it in class using tables and graphs to determine how many observations of a phenomenon are necessary to draw valid conclusions.