| Full lesson | Create for a teacher a set of content for giving a lesson, beginning with the lesson plan. Each new block of materials must begin with an H1 heading (other subheaders must be H2, H3, etc). When you describe required pictures, write those descriptions in curly brackets, for example: {A picture of a triangle} |
| Which subject | Mathematics |
| What topic | addition and subtraction |
| What length (min) | 45 |
| What age group | Year or Grade 4 |
| Class size | 30 |
| What curriculum | VC2M3A02 using partitioning to develop and record facts systematically (for example, ‘How many ways can 12 monkeys be spread among 2 trees?’, 12 = 12 + 0, 12 = 11 + 1, 12 = 10 + 2, 12 = 9 + 3, …), explaining how they know they have found all possible partitions VC2M4A01 using balance scales and informal uniform units to create addition or subtraction number sentences showing equivalence, such as 7 + 8 = 6 + 9, and to find unknowns in equivalent number sentences, such as 6 + 8 = □ + 10 |
| 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 | |
| Create creative backup tasks for unexpected moments |
Addition and Subtraction
Year 4
Mathematics
30 students
| Step Number | Step Title | Length (minutes) | Details |
|---|---|---|---|
| 1 | Introduction to Topic | 5 | Introduce addition and subtraction. Discuss real-life examples where these concepts apply. |
| 2 | Exploring Partitioning | 10 | Explain the concept of partitioning numbers. Use 12 monkeys and trees example to illustrate. |
| 3 | Guided Practice | 10 | Hand out examples of partitioning (e.g., 12 as 11 + 1, 10 + 2). Work through them as a class. |
| 4 | Hands-On Activity | 10 | Students use balance scales with counting blocks to create addition and subtraction sentences. |
| 5 | Independent Practice | 5 | Distribute worksheets for students to practice partitioning and equivalence problems individually. |
| 6 | Homework Assignment | 5 | Assign homework that reinforces the lesson. Ensure it covers partitioning and equivalence exercises. |
| 7 | Conclusion | 5 | Review the key concepts learned in the lesson. Recap on partitioning and equivalence in number sentences. Collect homework without presentations. |
"Good morning class! Today, we're going to dive into a very exciting topic: Addition and Subtraction. Can anyone tell me what addition is? Yes, that's right! Addition is when we put things together. And now, what about subtraction? Exactly, subtraction is when we take things away.
These concepts are all around us in real life. For instance, if you have 5 apples and your friend gives you 3 more, how many apples do you have now? [Pause for answers] Yes, you would add them together! Similarly, if you had 8 apples and you ate 2, how many apples do you have left? [Wait for responses] That's right! You perform subtraction to find out. So let's explore these ideas further today."
"Now, let’s talk about a specific method called partitioning. Partitioning is about breaking numbers into parts. For example, let’s imagine we have 12 monkeys in a tree. We could split these 12 monkeys into groups.
For instance, we can have 11 monkeys on one branch and 1 monkey on another. So we can say that 12 can be partitioned into 11 + 1.
Can anyone think of another way to split 12? [Encourage responses] That's right! You could also say 10 + 2. That's the power of partitioning – it helps us create different addition sentences from the same number."
"Now let's practice partitioning together. I’m going to give you a few examples, and we'll work on these as a class.
What are two numbers that add up to make 12? [Wait for responses] Great! Let’s write that on the board.
You can think about 9 + 3, or even 6 + 6. How about we also try partitioning the number 15? [Assist students as they suggest numbers]
Fantastic! Remember, there's no single way to partition a number. You can all come up with your own combinations."
"Time for some hands-on activity! I want you to partner up. Each pair will get a balance scale and some counting blocks.
Your job is to create your own addition and subtraction number sentences using these blocks. For example, if you use 5 blocks on one side, how many do you need on the other side to be equal?
Remember to think about how you can partition the total when recording your sentences. I’ll be walking around to help if you have questions. Let's get started!"
"Awesome job with the activity! Now it’s time for some independent practice. Each of you will receive a worksheet with addition and subtraction problems that involve partitioning numbers.
Take your time to complete it individually. Remember, you can refer back to what we did earlier for support. Let's work for 5 minutes, and I’ll be here if you need me."
"To reinforce what we've learned today, I have a homework assignment for you.
You will complete a worksheet that focuses on partitioning numbers and creating equivalent addition and subtraction sentences.
Make sure to work on this independently, as it will help you understand these concepts better for our next class."
"Let’s wrap up our lesson for today. We’ve learned about addition and subtraction and how to partition numbers.
I hope you feel more confident with these concepts. Remember, partitioning helps us see the different ways we can make the same number using addition.
Before you go, please pass your homework sheets to the front. Great work today, everyone! See you next lesson!"