## Reflection: Writing Across the Disciplines Patterns In Multiplication (Days 1 - 5) - Section 7: Explain The Rules (Days 1-5)

Each day the explanations and information became more and more clear for the students as conveyed by their writing and notations on the charts.  This repetitive recording each day turns out to be the most important component of the lesson.  Using sentence stems resulted in a much clearer explanation and greater understanding of the patterns for most students.

I had the students begin with their sentence with:

Numbers that are multiplied by two have ones digits that follow the pattern of ______________.

Numbers that are multiples of three and nine have digits that add to ___________________.

Numbers that are multiples of four and eight have digits that ______________________.

I provide a more complete sentence stem on the first day, and as the week progresses, the sentence stem can be modified or reduced so that the student is providing more of their own explanation.  This is something that can be differentiated for the students as needed.

It also helped to have the patterns develop in an order of increasing difficulty, particularly in the comparison of multiples of three, six, and nine on Day 4.  I found that it was helpful for the students to consider two criteria to find the pattern rule.  This type of pattern lesson is one that may need to be repeated throughout the school year.  I would consider presenting this lesson as students are learning facts as well as in review of multiplication to identify patterns.

Explanations & Sentence Stems
Writing Across the Disciplines: Explanations & Sentence Stems

# Patterns In Multiplication (Days 1 - 5)

Unit 6: Multiplication 2
Lesson 13 of 13

## Big Idea: As students develop fluency finding and explaining patterns with products helps them make sense of multiplication.

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Standards:
Subject(s):
Math, commutative property of multiplication, multiplication, multiplication rules, pattern, word problems, multiplication models, area model
70 minutes

### Diane Siekmann

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