Curated OER
How Old is that Cookie?
Students investigate adaptation. In this cookie age lesson, students examine changes and variations in chocolate chips in cookies in preparation for determining the age of trees using lines. Students discuss how the age of trees is...
Curated OER
Days, Month, Year - Calendar Practice
In this calendar math practice activity, 2nd graders answer 6 multiple choice questions about days, months, and the year. They answer questions such as "What is the fifth month of the year?" and "How many days does September have?"