Double Trouble!

Deborah Burton

Tier 1

Lesson Plan

Double Trouble!

Students will be able to accurately multiply single-digit numbers by 2.

Mastering multiplication by 2 is a foundational skill that helps students build confidence and prepares them for more complex multiplication. It's also useful in everyday situations like doubling a recipe or counting pairs.

Audience

3rd Grade Students

Time

30 minutes

Approach

Interactive slides, guided practice, and independent worksheet.

Materials

Whiteboard or projector, Slide Deck, Multiplication by 2 Worksheet, Multiplication by 2 Answer Key, and Pencils or markers

Prep

Prepare Materials

10 minutes

Review the Slide Deck content and teacher notes.
* Print copies of the Multiplication by 2 Worksheet for each student.
* Have the Multiplication by 2 Answer Key ready for quick checking.
* Ensure projector/whiteboard is set up and working.

Step 1

Warm-Up: Brain Boosters

5 minutes

Display the first slide of the Slide Deck.
* Engage students with a quick question related to 'doubling' or 'pairs'. For example: 'If you have 3 apples, and I give you double that amount, how many do you have now?'
* Briefly discuss their responses to activate prior knowledge.

Step 2

Introduction: The Power of Two (7 minutes)

7 minutes

Move to the next slides in the Slide Deck introducing multiplication by 2.
* Explain that 'multiplying by 2' is the same as 'doubling' a number or adding a number to itself.
* Use visual examples from the slides (e.g., pairs of socks, wheels on a bike).
* Practice a few simple problems together as a class, encouraging students to explain their thinking.

Step 3

Guided Practice: Double Up! (8 minutes)

8 minutes

Continue through the interactive practice slides in the Slide Deck.
* Ask students to volunteer answers and show their work (if applicable, on mini whiteboards or notebooks).
* Provide immediate feedback and clarify any misconceptions.
* Emphasize strategies like skip-counting by 2s or using repeated addition.

Step 4

Independent Practice: Worksheet Challenge (8 minutes)

8 minutes

Distribute the Multiplication by 2 Worksheet.
* Explain that students will now work independently to solve multiplication by 2 problems.
* Circulate around the room, offering support to students who need it.
* Remind them to show their work or draw pictures if it helps them.

Step 5

Wrap-Up: Two-Minute Review (2 minutes)

2 minutes

Collect the Multiplication by 2 Worksheet.
* Quickly review one or two problems from the worksheet or ask students to share one thing they learned about multiplying by 2.
* Praise their effort and engagement.

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Slide Deck

Double Trouble!

Ready to learn about doubling numbers?

Welcome students and introduce the concept of 'doubling'. Use an engaging question to activate prior knowledge.

What is Multiplying by 2?

Multiplying by 2 means you have two groups of something!
It's like adding a number to itself.

Example: 2 x 3 is the same as 3 + 3!

Explain that multiplying by 2 means finding 'two groups of' a number or adding a number to itself.

Let's Count Pairs!

Look at the shoes!
How many pairs of shoes do you see?
How many shoes are there in total?

2 shoes per pair x 4 pairs = 8 shoes!

Use a visual example to reinforce the concept. Encourage students to count with you.

Practice Time: Doubling Up!

2 x 1 = ?
2 x 2 = ?
2 x 3 = ?
2 x 4 = ?
2 x 5 = ?

Practice a few problems together. Ask students to share how they got their answer.

Your Turn: Worksheet Challenge!

Now it's your turn to show what you know!

Complete the Multiplication by 2 Worksheet.

Remember: You can draw pictures or use skip counting to help!

Introduce the worksheet and explain expectations for independent practice.

Great Job, Doublers!

You did an amazing job learning about multiplying by 2!

Keep practicing, and soon you'll be multiplication masters!

Conclude the lesson by reviewing the main concept and praising student effort.

Worksheet

Multiplication by 2 Worksheet

Name: ________________________
Date: _________________________

Directions: Multiply each number by 2. Show your work or draw pictures if it helps you!

2 x 0 =
2 x 1 =
2 x 2 =
2 x 3 =
2 x 4 =
2 x 5 =
2 x 6 =
2 x 7 =
2 x 8 =
2 x 9 =
2 x 10 =

Challenge Questions:

If you have 7 pairs of socks, how many individual socks do you have?
A baker bakes 9 cakes. Each cake has 2 layers. How many layers are there in total?

Answer Key

Multiplication by 2 Answer Key

Directions: Multiply each number by 2.

2 x 0 = 0
Thought Process: Any number multiplied by zero is zero. If you have two groups of nothing, you still have nothing.
2 x 1 = 2
Thought Process: Two groups of one is two (1 + 1 = 2).
2 x 2 = 4
Thought Process: Two groups of two is four (2 + 2 = 4).
2 x 3 = 6
Thought Process: Two groups of three is six (3 + 3 = 6).
2 x 4 = 8
Thought Process: Two groups of four is eight (4 + 4 = 8).
2 x 5 = 10
Thought Process: Two groups of five is ten (5 + 5 = 10).
2 x 6 = 12
Thought Process: Two groups of six is twelve (6 + 6 = 12).
2 x 7 = 14
Thought Process: Two groups of seven is fourteen (7 + 7 = 14).
2 x 8 = 16
Thought Process: Two groups of eight is sixteen (8 + 8 = 16).
2 x 9 = 18
Thought Process: Two groups of nine is eighteen (9 + 9 = 18).
2 x 10 = 20
Thought Process: Two groups of ten is twenty (10 + 10 = 20).

Challenge Questions:

If you have 7 pairs of socks, how many individual socks do you have?
Answer: 14 individual socks
Thought Process: Each pair has 2 socks. So, 7 pairs x 2 socks/pair = 14 socks.
A baker bakes 9 cakes. Each cake has 2 layers. How many layers are there in total?
Answer: 18 layers
Thought Process: There are 9 cakes, and each has 2 layers. So, 9 cakes x 2 layers/cake = 18 layers.