Five's

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Objective

Students will be able to fluently multiply with 5's.

Big Idea

Ready or not here I come!

Concept

15 minutes

By fifth grade students should be comfortable skip counting by 5.  It is important now to point out that all of the facts using the factor 5 end in 5 or 0. 

A connection to 2's doubling and five as a factor can also be made.  2's double by 2 and 5's double to 10.  2 always is a double, but five is only a double every other time.  Not a huge connection but worth pointing out to students.  

Again, their familiarity with skip counting by 5's will guide them in their understanding. 

I have included a short video for multiplying by 5.  This is meant to be more of a review and practice instead of a concept introduction.

Practice

30 minutes

Spinner Tool

Students are given one of the spinners to fill out as a reference tool.  The tool will be primarily used during the current level of the multiplication program but should be kept as a reference going forward to higher levels. 

 

Flashcards

There is a set of flashcards provided for the current level.  Each set of flashcards include the facts with their turn-around facts.  It is important that the students are comfortable with the commutative property of multiplication.  

 

Games for Practice

Jumbo Tic-Tac-Toe

  • Each player chooses one factor (2-12)
  • Record the factor in the top of second column
  • Toss 2 dice and find the sum
  • Multiply the sum by the factor
  • Record the product next to the sum in the table
  • If the sum has already been filled, lose a turn
  • First player to complete the table wins

 

Line It Up

  • Toss 2 dice and find the sum
  • Multiply the sum by 2
  • Place a counter on the product
  • If the product has a counter on it, lose a turn
  • First player to build a full row or column wins

 

Face-Off

  • Each player chooses one factor (2-12)
  • Record the factor in the top of second column
  • Toss 2 dice and find the sum
  • Multiply the sum by the factor
  • Record the product next to the sum in the table
  • If the sum has already been filled, lose a turn
  • First player to complete the table wins

Timed Test

15 minutes

There are two timed tests associated with this new factor.  The first timed test is designed to be a one minute test of 40 problems and includes only multiplication facts with the new factor.  The second timed test is designed to be a two minute test of 60 problems and includes all multiplication facts learned in the leveled program thus far.