Curated OER
March of the Dividing Ant
Young scholars inspect divisibility rules. In this divisibility rules lesson, students study the relationship between factorization and the divisibility rules for 2, 3, 5, 6, 9, and 10. Young scholars read One Hundred Hungry Ants and A...
Curated OER
Introducing Powers and Models II: Multiplication Rummy
Students practice their multiplication table using a game to increase speed and accuracy. In this multiplication activity, students distribute 5 random number cards to each player (2-5 players) and they "play" if their hand includes 3...
Illustrative Mathematics
Illustrative Mathematics: What Makes a Teen Number?
Learners will learn about teen numbers by understanding the base-ten structure of teen numbers. They will fill-in a 10-frame and a blank equation as they complete the activity. Worksheet included.
Illustrative Mathematics
Illustrative Mathematics: Hitting the Target Number
The purpose of this task is to help students develop flexible strategies for adding and subtracting within 20. Students will pick 5 number cards from pre-made cards labeled 1-10. Then, another student will pick a "target number" between...