Reflection: Connection to Prior Knowledge Divisibility Rules for 2 and 3 - Section 2: Group Work


As my students began working with the calculators, I heard some of them ask one another, "What do we do with the decimal?"  They didn't make the connection between a quotient having decimals and a remainder when using long division.  This is a topic that we will discuss in great dealing when changing fractions to decimals.  

"How do we know 4 can be evenly divided by 2, but 5 can't be evenly divided by 2?"  Students responses were appropriate and along the lines of 4 can be divided into 2 groups of 2, but when you divide 5 by 2 there is a remainder.  I asked students to verify this with their calculators and they were able to see that 5 divided by 2 on their calculators gave them a decimal.


In the future this will be a brief discussion with students before handing out the worksheet.


  Working with a Calculator
  Connection to Prior Knowledge: Working with a Calculator
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Divisibility Rules for 2 and 3

Unit 3: Divisibility Rules
Lesson 1 of 5

Objective: SWBAT discover the divisibility rules for 2 and 3.

Big Idea: Students will work with calculators to discover the divisibility rules

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