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 3-digit numbers with regrouping using 10 block
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

Topic

Adding and Subtracting 3-Digit Numbers with Regrouping Using 10 Blocks

Objectives

• Students will be able to add and subtract 3-digit numbers with regrouping using 10 blocks.
• Students will demonstrate understanding of the concept of regrouping in addition and subtraction.
• Students will apply their skills in solving problems involving 3-digit addition and subtraction in real-life contexts.

Materials

• 10 blocks (manipulatives) for each student
• Whiteboard and markers
• Worksheets with practice problems
• Smartboard (if available)
• Timer
• Exit tickets for assessment

Grade/Age Group

• Appropriate for 2nd to 4th grade students (ages 7-10)

Subject

• Mathematics

Class Size

• 20 students

Lesson Duration

• 30 minutes

Lesson Structure

Step Number	Step Title	Length	Details
1	Introduction to Regrouping	5 mins	Briefly explain regrouping using 10 blocks. Introduce the lesson’s objectives and materials.
2	Demonstration of Adding with Regrouping	10 mins	Demonstrate the process of adding 3-digit numbers using 10 blocks on the smartboard/whiteboard. Show an example step-by-step.
3	Guided Practice	8 mins	Students work in pairs to solve 2-3 problems with 10 blocks while the teacher circulates the room to provide support.
4	Independent Practice	5 mins	Distribute worksheets for individual practice. Students will solve problems using 10 blocks.
5	Review and Q&A	2 mins	Quick review of the key concepts and provide an opportunity for students to ask questions.
6	Homework Assignment	0 mins	Assign practice problems on adding and subtracting 3-digit numbers for homework. Collect homework without presentations.

Assessment

• Use exit tickets to assess student understanding at the end of the lesson.
• Review homework for understanding without requiring student presentations in class.

Standards

• This lesson aligns with the Common Core State Standards for Mathematics (CCSS.MATH.CONTENT.2.NBT.B.7 and CCSS.MATH.CONTENT.3.NBT.A.2) which address addition and subtraction of within 1000 and regrouping.

Reflection

• After the lesson, the teacher should reflect on student engagement and understanding, and adjust future lessons based on the success of various methods used during instruction.

Lesson script