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	Adding and subtracting double digits with regrouping
What length (min)	30
What age group	Doesn't matter
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

Lesson plan

Lesson Plan: Adding and Subtracting Double Digits with Regrouping

Subject

Mathematics

Topic

Adding and Subtracting Double Digits with Regrouping

Grade/Age Group

Varied (Suitable for elementary students, approximately ages 8-10)

Length of Lesson

30 minutes

Number of Students

20

National Curriculum Alignment

This lesson corresponds with the Common Core State Standards for Mathematics, particularly:

• 2.NBT.B.7: Add and subtract within 100, including adding a two-digit number and a one-digit number and adding two two-digit numbers.

Objectives

• Students will understand the concept of regrouping in addition.
• Students will understand the concept of regrouping in subtraction.
• Students will be able to accurately add and subtract two-digit numbers using regrouping.

Materials Needed

• Whiteboard and markers
• Place value charts
• Worksheets with practice problems
• Pencils and erasers
• Flashcards with double-digit numbers

Lesson Structure

Step Number	Step Title	Length	Details
1	Introduction to Regrouping	5 min	Introduce the concept of regrouping in addition and subtraction using simple examples.
2	Guided Practice for Addition	10 min	Work on addition problems as a class. Use the whiteboard to demonstrate regrouping.
3	Independent Practice for Addition	5 min	Distribute worksheets with addition problems. Students work independently.
4	Guided Practice for Subtraction	5 min	Explain subtraction with regrouping. Use the whiteboard to demonstrate examples.
5	Independent Practice for Subtraction	5 min	Distribute worksheets with subtraction problems. Students work independently.
6	Review and Conclusion	5 min	Recap the lesson, address questions, and provide tips for solving problems.

Homework

• Provide students with a worksheet that includes both addition and subtraction problems with regrouping for additional practice.
• Collect homework the next class without asking students to present it in front of the class to ensure comfort and privacy in their learning process.

Assessment

• Observe student participation during guided practice.
• Evaluate completeness and accuracy of independent practice worksheets.
• Check homework for understanding of the concepts covered in class.

Lesson script