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Which subject	Mathematics
What topic	BOMDAS
What length (min)	30
What age group	Year or Grade 5
Class size	20
What curriculum
Include full script
Check previous homework
Ask some students to presents their homework
Add a physical break
Add group activities
Include homework
Show correct answers
Prepare slide templates
Number of slides	5
Create fill-in cards for students
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Lesson plan

Lesson Plan: BOMDAS

Topic

BOMDAS (Brackets, Orders, Multiplication and Division, Addition and Subtraction)

Objectives

• Understand the order of operations in mathematical expressions.
• Be able to accurately apply BOMDAS in solving equations.
• Enhance problem-solving skills through practice and collaboration.

Materials

• Whiteboard and markers
• Handouts with practice problems
• BOMDAS visual aid (poster/printout)
• Access to online math resources (optional)
• Pencils and erasers

Grade/Age Group

Year 5

Subject

Mathematics

Class Size

20 students

Lesson Duration

30 minutes

National Curriculum Alignment

This lesson corresponds to the Australian Curriculum for Year 5 Mathematics, focusing on order of operations in algebraic expressions.

Lesson Structure

Step Number	Step Title	Length (minutes)	Details
1	Introduction to BOMDAS	5	Introduce the concept of BOMDAS, explaining each operation involved and its importance.
2	Demonstration	10	Solve a few examples on the whiteboard, demonstrating how to apply the BOMDAS rules.
3	Guided Practice	5	Provide students with simple problems to solve in pairs, encouraging collaboration.
4	Independent Practice	5	Distribute handouts with practice problems for students to complete independently.
5	Homework Assignment	3	Assign homework relevant to BOMDAS concepts; provide handout with details and due date.
6	Closing Discussion	2	Quick recap of key points discussed in the lesson; address any immediate questions.

Homework

• Assign homework related to BOMDAS concepts, ensuring it reinforces the lesson taught. This will be checked in the next class without presentations.

Assessment

• Informal assessment during guided and independent practice to gauge understanding.
• Review of homework completed for comprehension of BOMDAS operations.

Additional Notes

• Ensure to encourage students’ questions throughout the lesson for better engagement.
• Monitor group work during guided practice to facilitate support where needed.

Lesson script

Introduction to BOMDAS

"Good morning, everyone! Today, we are going to learn about a very important concept in mathematics called BOMDAS. Can anyone tell me what BOMDAS stands for? That's right! It stands for Brackets, Orders, Multiplication and Division, Addition and Subtraction. Understanding BOMDAS helps us know the correct order to solve mathematical expressions. Why do you think this might be important?"

Demonstration

"Now, let's dive in and see how BOMDAS works. I will show you some examples on the whiteboard. First, let’s solve the expression: 6 + 2 × 3. According to BOMDAS, multiplication comes before addition. So, what do we solve first? Yes, that's correct! We will calculate 2 × 3 first, which equals 6. And then we add 6 to that. So, 6 + 6 gives us…?"

"Great job! It’s 12! Now, let's try another example that includes brackets, like this: (4 + 2) × 3. What do we need to solve first? Exactly, we solve the brackets first! So, 4 + 2 equals 6, and then we multiply that by 3, which gives us 18."

Guided Practice

"Now it’s your turn to work together. I will give you a few problems to solve in pairs. Remember to apply the BOMDAS rules we just went over. Your first problem is: 8 - 2 × 3 + 1. Take a moment to discuss this with your partner, and then we’ll share our answers. Go ahead!"

Independent Practice

"Fantastic teamwork, everyone! Now, I’m going to distribute handouts with more BOMDAS problems for you to complete on your own. Please try your best to apply what we’ve learned today. You have 5 minutes to finish these problems. If you have any questions, feel free to raise your hand."

Homework Assignment

"Great job today, everyone! For homework, I would like you to complete a few additional problems related to BOMDAS. I’ll hand out a worksheet now with the details, including the due date. Please make sure to complete this by our next class."

Closing Discussion

"Before we wrap up, let’s have a quick recap! What are the key parts of BOMDAS that we discussed today? Yes, the order of operations: Brackets first, then Orders, followed by Multiplication and Division, and finally Addition and Subtraction. Does anyone have any questions about what we learned? It’s important to feel confident with BOMDAS as it will help you with more complex maths in the future. Thank you for your great participation today!"

Homework

1. What does the acronym BOMDAS stand for? Explain each component briefly.

2. Solve the following expression using BOMDAS: 5 + (3 × 4) - 2.

3. For the expression 12 ÷ 4 + 6 × 2, demonstrate the order in which you will solve the operations and what the final answer is.

4. Evaluate the expression: (10 - 3) × (2 + 1) ÷ 2.

5. Explain why it is necessary to follow the BOMDAS rules when solving mathematical expressions. What could happen if the order is not followed?

6. Solve the following problems and show your working:

   • a) 7 + 2 × (5 - 3)
   • b) (8 + 4) ÷ 2 - 1 × 3

7. Create your own BOMDAS expression that contains all the elements of BOMDAS (Brackets, Orders, Multiplication and Division, Addition and Subtraction) and solve it.

8. Reflect on a scenario in daily life where understanding BOMDAS might be useful. Describe the situation and how you would apply BOMDAS.