Click here for the Spanish version: https://youtu.be/xl_Iqwq5JQ8
In This Unit of Study…
Students utilize their knowledge of fact fluency and how rectangular arrays represent multiplication to identify all factor pairs for a given number up to 144. Students use the amount of factor pairs to determine if the number is prime or composite.
- MA.4.AR.3.1 Determine factor pairs for a whole number from 0 to 144. Determine whether a whole number from 0 to 144 is prime, composite or neither.
- MA.4.NSO.2.1 Recall multiplication facts with factors up to 12 and related division facts with automaticity.
Overarching Key Concepts:
- Fluency: Multiply by 6
- Represent and determine factor pairs within 144
- Identify and describe prime and composite numbers within 144