Multiplying Decimals (Area Model)


Model the product of two decimals by finding the area of a rectangle. Estimate the area of the rectangle first. Then break the rectangle into several pieces and find the area of each piece (partial product). Add these areas together to find the whole area (product).

Screenshot of Multiplying Decimals (Area Model) Gizmo

LESSON MATERIALS:

LEARNING OBJECTIVES:

  • Demonstrate multiplication with an area model.
  • Estimate the product of a decimal and a whole number.
  • Estimate the product of two decimals.
  • Calculate the product of a decimal with a whole number using partial products.
  • Calculate the product of two decimals using partial products.

VOCABULARY:

  • area, estimate, partial product, product

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    2014, 2013, 2012, 2009, 2008, 2006 SIIA CODiE Awards

  • Finalist: Distinguished Achievement Award

    2013, 2012, 2011, 2010, 2009, 2006 AEP

  • Finalist: Best K-12 Instructional Solution

    2010 SIIA CODiE Awards

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