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# Three's

Lesson 9 of 13

## Objective: Students will be able to fluently multiply with 3's.

*60 minutes*

#### Concept

*15 min*

The number 3 sometimes gets left out of fundamental skip counting. Counting by 3's however, is key to students understanding of using 3 as a factor.

If students are unfamiliar with skip counting by 3's, that is where to start. Once students gain confidence in their skip counting abilities with the number 3, they will unlock the keys to the 3, 6, 9 factor kingdom.

I have included a short video for multiplying by 3. This is meant to be more of a review and practice instead of a concept introduction.

#### Resources

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#### Practice

*30 min*

**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

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#### Timed Test

*15 min*

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.

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