| 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 with regrouping |
| What length (min) | 30 |
| What age group | Year or Grade 2 |
| 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 | |
| Create creative backup tasks for unexpected moments |
Mathematics
Addition with Regrouping
Grade 2 (Ages 7-8)
30 minutes
20
This lesson corresponds with the standards for Grade 2 mathematics, focusing on addition strategies, including regrouping to solve problems.
| Step Number | Step Title | Length | Details |
|---|---|---|---|
| 1 | Introduction to Regrouping | 5 min | Explain what regrouping is using simple examples. Engage students with a question about their experiences with addition. |
| 2 | Demonstration | 5 min | Show a sample addition problem on the whiteboard that requires regrouping. Walk through the steps slowly. |
| 3 | Handout Activity Cards | 5 min | Distribute printable cards to each student that they will fill out during the lesson. Explain how to use the cards. |
| 4 | Guided Practice | 10 min | Students work on problems individually using the cards while the teacher circulates to provide support. Check for understanding. |
| 5 | Random Checking | 3 min | Quickly check students' work on their cards without calling on individual students. Ensure comprehension and correct mistakes where necessary. |
| 6 | Assign Homework | 2 min | Explain the homework assignment related to addition with regrouping. Provide clear instructions without providing specific problems. |
| 7 | Closing and Reflection | 2 min | Discuss what was learned in the lesson. Encourage students to share their thoughts about using regrouping. |
Homework will be assigned at the end of the lesson. It will focus on reinforcing the concept of addition with regrouping and will be collected the following day without individual presentations.
"Good morning, everyone! Today, we are going to dive into a new math concept called regrouping. Can anyone tell me what they think regrouping means? Think about times when you've added numbers and maybe had to carry over to the next column. Let's discuss!"
[Pause for student responses and encourage discussion.]
"Great insights, everyone! Regrouping is when we reorganize numbers to make addition easier, especially when our sums are greater than ten. Let's dig deeper into how we can do that!"
"Now, I’m going to show you an example on the whiteboard. Let's solve the problem: 27 + 46."
[Write it on the board.]
"First, we add the ones place: 7 plus 6 gives us 13. What do we do with the 13? Yes! We write down the 3 and carry over the 1 to the tens place. Next, we add up 2 plus 4 and then add the 1 we've carried over. So, what is 2 plus 4 plus 1?"
[Wait for student responses.]
"Exactly! It’s 7. So, our answer is 73. That’s how we use regrouping. It helps us keep our numbers organized!"
"Now it's your turn! I have some printable activity cards for each of you. I'm going to hand these out."
[Distribute the cards.]
"These cards will help you practice addition with regrouping. Please take a moment to look at them. You will fill them out as we go through today’s lesson. If you have questions about how to use them, just raise your hand!"
"Alright, let’s get started on our practice problems! You will now work individually using the activity cards. Please complete the problems on your cards that require regrouping."
[Circulate the room as students work.]
"I'm here to help! If you get stuck, or if you think you’ve found an answer, just let me know!"
"Let’s take a few minutes to check your work. I’m going to come around and look at your cards without calling on each of you. I want to ensure everyone is on the right track."
[Walk around and check students’ answers. Provide feedback and help correcting any errors silently.]
"Great job today, everyone! For homework, I want you to complete a worksheet that I’ll hand out. It will have additional problems on addition with regrouping."
[Show the homework assignment and explain briefly.]
"Remember to follow the same steps we practiced today. I want you to think about how you can regroup to help you solve these problems!"
"Before we finish up, let's quickly review what we learned today. Who can tell me why regrouping is important in addition?"
[Encourage students to share their thoughts.]
"Fantastic responses! Regrouping helps us make sense of our numbers and ensures that we don’t miss anything when we add. I want you all to remember how we worked together today, and keep practicing at home!"
"Thank you for your hard work, everyone! Have a great day!"
What is regrouping, and why is it important when adding numbers?
Solve the following problem using regrouping: 58 + 37. What do you do when you get a sum greater than ten in the ones place?
During the addition of two-digit numbers, what do you do with the number you carry over? Provide a specific example.
Complete the following addition problems and show your work, making sure to regroup where necessary:
What steps did you take to solve the problem 27 + 46 in class today? List them in order.
Create your own two problems that require regrouping and solve them. Explain your thought process.
Reflect on today’s lesson. Why do you think regrouping helps to keep numbers organized when adding?
| Question | Answer |
|---|---|
| What does regrouping mean in the context of addition? | |
| Can you provide an example of a situation where you would need to regroup? | |
| When adding the numbers 27 and 46, what do we do with the sum of the ones place, 13? | |
| What do we get when we add 2 plus 4 plus the 1 that we carried over? | |
| How does regrouping help us when solving addition problems? | |
| Why is it important to organize our numbers when adding? | |
| What strategies can you use if you encounter a problem that requires regrouping for the first time? | |
| How did you feel about using the activity cards to practice regrouping? | |
| What should you remember to do when completing your homework on regrouping? | |
| How can practicing regrouping now help you in future math problems? |