Resources and Tools for Elementary Math Specialists and Teachers

Common Core State Standards for Mathematics

Grade(s) 8 resources related to the following standard:
The Number System
Know that there are numbers that are not rational, and approximate them by rational numbers.
1. Know that numbers that are not rational are called irrational. Understand informally that every number has a decimal expansion; for rational numbers show that the decimal expansion repeats eventually, and convert a decimal expansion which repeats eventually into a rational number.

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Lesson plan, songs, trivia quiz, and refreshments sign-up sheet for a Pi Day celebration.
Lesson Plans, Music
Grade Level: 4, 5, 6+