Reflection: Connection to Prior Knowledge Multiplying with Decimal Quantities - Section 3: Instruction & Teacher Modeling


When teaching this lesson, I found that it was very helpful to connect my students knowledge of calculating with whole numbers to the calculating of decimals. My students were so much more comfortable with the whole numbers that if, as a teacher, you can make decimal quantities as synonymous as possible to whole numbers, you pretty much have won the battle of teaching calculating using decimal quantities. 

For this lesson, I went back to showing students that multiplication is simply repeated addition. In doing so, I was able to show students how when you multiply with decimals, you are still doing repeated addition. This was extremely powerful for the students and helped them to gain more confidence as it pertained to calculating with decimals.

  The Importance of Fundamentals
  Connection to Prior Knowledge: The Importance of Fundamentals
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Multiplying with Decimal Quantities

Unit 1: Number Sense
Lesson 3 of 19

Objective: SWBAT fluently multiply multi-digit decimal quantities.

Big Idea: That Dot Goes Where? Multiplying decimal quantities and accurately displaying their product.

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6 teachers like this lesson
Math, Number Sense and Operations, order of operations, multiplying decimals, problem solving, arithmetic properties, grade 6, factors and multiples
  70 minutes
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