# Lesson Plan: Understanding Place Value
## Grade: 1st Grade
### Topic: Place Value
#### Lesson Length: 60 minutes
### Objective:
Students will be able to:
1. Understand and identify the place value of digits in numbers up to 100.
2. Break down two-digit numbers into tens and ones.
3. Construct numbers using the knowledge of place value.
### Materials Needed:
- Base-ten blocks (tens rods and ones units)
- Place value charts
- Whiteboard and markers
- Number cards (0-9)
- Place value worksheets
- Interactive place value games (optional: tablets or computers)
- Visual aids (e.g., charts showing tens and ones)
### Common Core Standards:
- CCSS.MATH.CONTENT.1.NBT.B.2: Understand that the two digits of a two-digit number represent amounts of tens and ones.
- CCSS.MATH.CONTENT.1.NBT.B.2.A: 10 can be thought of as a bundle of ten ones — called a "ten."
### Lesson Procedure:
#### Introduction (10 minutes):
1. **Hook**: Begin the lesson with a brief story or visual presentation showing various groups of 10 items (e.g., ten apples, ten blocks). Highlight how groups of 10 can be broken down into single units.
2. **Objective Overview**: Explain that today, students will learn about place value and how numbers are made up of tens and ones.
#### Direct Instruction (15 minutes):
1. **Place Value Introduction**:
- Use the whiteboard to write numbers from 0 to 20.
- Explain that in a number like 15, the 1 is in the tens place and the 5 is in the ones place.
2. **Visual Demonstration**:
- Show base-ten blocks. Group ten ones units to make one ten rod.
- Use place value charts to visually separate tens and ones.
3. **Interactive Demonstration**:
- Write a two-digit number on the board.
- Have students identify the digit in the tens place and the digit in the ones place.
- Use base-ten blocks to physically represent the number (e.g., 23: two ten rods and three ones units).
#### Guided Practice (15 minutes):
1. **Activity**: Place Value Chart
- Distribute place value charts and base-ten blocks to students.
- Call out various two-digit numbers. Students will represent these numbers on their place value charts using the base-ten blocks.
- Walk around the room to provide assistance and ensure understanding.
2. **Partner Activity**: Number Cards
- Students work in pairs. Each pair gets a set of number cards.
- One student builds a number using base-ten blocks, and the other student identifies the number and explains the place value of each digit.
#### Independent Practice (10 minutes):
1. **Worksheet**: Provide a worksheet that includes tasks such as:
- Identifying the tens and ones in given numbers.
- Drawing base-ten blocks to represent given numbers.
- Writing numbers using given tens and ones.
#### Conclusion (10 minutes):
1. **Review**: Go over some of the worksheet problems on the whiteboard. Discuss any common mistakes and clarify confusion.
2. **Summary**: Recap the key points of the lesson. Stress the importance of understanding tens and ones for larger numbers.
3. **Interactive Game**: If time allows, use an interactive game on tablets/computers to reinforce place value concepts. Websites like ABCya or Starfall have place value games suitable for first graders.
#### Assessment:
- Observe student participation during guided and independent practice.
- Review completed worksheets to check for understanding.
- Listen to students' explanations during partner activities to assess their grasp of the concepts.
### Extension Activities:
- **Advanced Worksheet**: Provide a more challenging worksheet for students who master the basic concepts quickly.
- **Home Activity**: Assign a place value scavenger hunt where students find objects at home that can be grouped into tens and ones and bring a list/pictures to class.
### Differentiation:
- **For Struggling Learners**: Work in small groups with extra support, using visual aids and hands-on manipulatives more extensively.
- **For Advanced Learners**: Introduce three-digit numbers and concepts of hundreds, or challenge them with simple addition/subtraction involving place value.
By the end of this lesson, students should have a solid understanding of how tens and ones combine to form numbers, setting a foundation for more complex math concepts in the future.