Certainly! Here's a lesson plan for teaching 3rd grade students how to add 3-digit numbers with diagrams and expanded notation:

Lesson: Adding 3-Digit Numbers with Diagrams and Expanded Notation

Objective: Students will be able to add 3-digit numbers using diagrams and expanded notation.

Materials:

• Whiteboard and markers
• Lined paper -encils
• Hundreds, tens, and ones blocks (or printed)
• Worksheet with addition problems using 3-digit numbers

Introduction (10 minutes):

1. Begin by reviewing place value and the concepts of hundreds, tens, and ones.
2. Use visual aids such as place value charts and manipulatives to reinforce the concept.
3. Discuss the importance of understanding place value when adding 3-digit numbers.

Instruction (20 minutes):

1. Introduce the concept of expanded notation by displaying a 3-digit number, e.g., 356.
2. Break the number into its expanded form, e.g., 300 + 50 + 6.
3. Explain that helps us understand the value of each digit in the number.

ed Practice (15 minutes):

1. Provide a few examples of adding 3-digit numbers on the whiteboard using the expanded notation, e.g., 245 + 167.
2. Use diagrams to represent addition process, such as grouping hundreds, tens, and ones together.
3. Have students work the examples with you, using the diagrams and expanded notation.

Practice (20 minutes):

1. Distribute the worksheet with addition problems involving 3-digit numbers.
2. Instruct students to solve problems using both the expanded notation and diagrams to represent the addition process.
3. Circulate the classroom to provide assistance and feedback as students work the problems.

Conclusion (5 minutes):

1. Review the addition process with the class, highlighting the use of expanded notation and diagrams.
2. Ask a few students to share their approaches to solving the problems.
3. Emphasize the importance of understanding place value when adding 3-digit numbers.

Assessment: Evaluate students' understanding through their ability to accurately add3-digit numbers using expanded notation and diagrams on the provided worksheet.

Extension/Challenge: For students who grasp the concept, provide more complex addition problems involving 3-digit numbers, and encourage them to explain their thinking using expanded notation and diagrams.

By this lesson plan, 3rd-grade students will have the opportunity to master the addition of 3-digit numbers using both expanded notation and diagrams, ensuring a deep understanding of the concept.

Certainly! Below is a lesson plan for teaching 3rd grade students how to 3-digit numbers with diagrams and expanded notation using the Building Thinking Classroom model:

Lesson: Adding 3-Digit Numbers with Diagrams and Expanded Notation

Objective: Students will be able to add 3-digit numbers using diagrams and expanded notation with a focus on building critical thinking skills through collaborative problem-solving.

Materials:

• White and markers
• Lined paper
• Pencils
• Hundreds, tens, and ones blocksor printed)
• Worksheet with addition problems using 3-digit numbers
• Building Thinking Classroom prompts (e.g., "What do you notice? What do wonder?" "How can we represent this problem?")

Introduction (10 minutes):

1. Engage students in a whole-group discussion using a "Notice and Wonder" prompt related to 3-digit numbers. Enc to share their observations and questions about these numbers.
2. Use this discussion to introduce the concept of adding 3-digit numbers with a focus on building understanding rather than simply providing the rules.
3. Discuss the importance of understanding place value and different-solving strategies.

Instruction (20 minutes):

1. Present an example of a 3-digit addition problem, and using the "Think-P-Share" strategy, ask students to think about and share ways to represent the problem. Encourage the use of diagrams and expanded notation.
2. Highlight the benefits of using different visual representations to solve problems and discuss how these representations can aid in building understanding.
3. Share strategies for adding 3-digit numbers, such as regrouping using place value.

Guided Practice (15 minutes):

1. Divide the class into small groups and provide each group with a 3-digit addition problem.
2. Encourage the groups to collaborate and use diagrams, manipulatives, and expanded notation to solve the problem. Circulate around the room to support and the groups as needed.
3. Facilitate a class discussion where each group explains their problem-solving process, emphasizing different strategies and representations used.

Independent Practice (20 minutes):

1. Provide individual or paired practice with a worksheet containing additional 3-digit addition problems.
2. Instruct students to use the Building Thinking Classroom prompts such as "What do you notice? What do you wonder?" and "How can we represent this?" to guide their problem-solving process.
3. Encourage students to use diagrams and expanded notation to represent and the problems independently or with a partner.

Conclusion (5 minutes):

1. Bring class back together for a reflection on the problem-solving process. Encourage students to share their approaches and discuss the benefits of using diagrams and expanded notation when adding 3-digit numbers.
2. Reinforce the idea that there are multiple ways to solve math problems and that understanding the concepts is more important than simply finding the answer.

Assessment: Observe students' participation in group discussions, their problem-solving approaches, and their ability to correctly use and expanded notation to add 3-digit numbers during the independent practice.

Extension/Challenge: For students who grasp the concept quickly, provide more addition problems or encourage them to create their own 3-digit addition problems to solve collaboratively using diagrams and expanded notation.

By implementing the Thinking Classroom model in this lesson plan, 3rd-grade students will have the opportunity to develop critical thinking skills and problem-solving while mastering the addition of 3-digit numbers.