Curated OER
students rotate through four workstations that reinforce the concept of symmetry
Second graders, in pairs, use arrays to explore the relationship between multiplication and division.
Curated OER
Defining Culture
Second graders define the term culture and are exposed to a variety of cultures from around the world. They read books, play Native American games, develop a class book that examines their own culture and, after examining currencies from...
Curated OER
Comparative and Superlative Adjectives
In this adjective learning exercise, students read about comparative and superlative forms, then complete sentences correctly. Students then make up some sentences of their own using comparative and superlative adjectives.
Lawrence Hall of Science
The Math Page: Skill in Arithmetic: The Meaning of Subtraction, and Mental Calculation
This website explains and defines basic subtraction. There are practice problems at the very end of this lesson.