Reflection: Checks for Understanding Multiplication Facts With Arrays - Section 3: Try It Yourself


Because of this student's struggle in coming up with a strategy to solve an equation without counting the squares on the grid individually, I see that it is necessary to address decomposing arrays with the class. Some of the students were able to figure this out without assistance, and others resorted to drawing group diagrams on their whiteboards to solve the equation. 

One of the ways to do this is to take a fact such as 7 x 6 and decompose the 7 to 5 + 2.  Next, I demonstrated for the students to take each of these numbers and multiply by 6.  These number sentences are  5 x 6 and 2 x 6.   This results in 30 + 12 = 42.  This is the beginning of using the distributive property.

Providing another strategy for students will assist students in solving multiplication and further developing their fluency without the use of a second support such as the whiteboard.  

  Formative Assessment
  Checks for Understanding: Formative Assessment
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Multiplication Facts With Arrays

Unit 6: Multiplication 2
Lesson 6 of 13

Objective: SWBAT fluently multiply within 100 using area models.

Big Idea: Students are expected to fluently multiply and divide within 100. This allows students to practice their math facts and then check their work using area models .

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2 teachers like this lesson
Math, commutative property of multiplication, Critical Area, word problems, multiplication, multiplication models, area model
  35 minutes
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