Core Knowledge Foundation
Taking Care of the Earth Tell It Again!™ Read-Aloud Anthology
A read-aloud anthology closely examines human impact on the Earth while boosting reading comprehension skills. Through stories, scholars examine the concepts of natural resources, pollution, garbage, and recycling and brainstorm...
Curated OER
Mathematics Lesson Plan
Second graders study subtraction facts. In this mathematics instructional activity, 2nd graders discuss how to solve two digit subtraction problems. Students recognize that there are many different methods or strategies one can use such...
Curated OER
Tides in the Hudson
Students view an illustration of the Hudson River watershed and identify the bodies of water shown. They discuss what happens when fresh and salt water mix. Students view a teacher demonstration of the stratification of fresh and salt...