Click here for the Spanish version: https://youtu.be/1eBK67K7ruE

In This Unit of Study…

Students will learn to multiply two whole numbers up to three digits by numbers up to two digits with procedural reliability. Students will explore various multiplication strategies including base ten model, area model, and partial product. In addition, students will use the standard algorithm to solve two-digit by two-digit multiplication problems.

B.E.S.T. Benchmarks:

  • MA.4.NSO.2.2 Multiply two whole numbers, up to three digits by up to two digits, with procedural reliability.
  • MA.4.NSO.2.3 Multiply two whole numbers, each up to two digits, including using a standard algorithm with procedural fluency.
  • MA.4.NSO.2.5 Explore the multiplication and division of multi-digit whole numbers using estimation, rounding and place value 
  • MA.4.AR.1.1 Solve real-world problems involving multiplication and division of whole numbers including problems in which remainders must be interpreted within the context. 

Overarching Key Concepts:

  • Fluency:  Multiply by 11 and 12 
  • Apply Patterns of Multiplication to Estimate Products 
  • Use Area Models to Represent Multiplication 
  • Use Partial Products and a Standard Algorithm to Multiply