Title: Round Numbers to the Nearest Ten, Hundred, and Thousand

Grade Level: 4th Grade

Duration: 45 minutes

Initial Competence: Students should have prior knowledge of place value and be able to identify the value of digits in a number.

Learning Objectives: 1. Understand the concept of rounding numbers to the nearest ten, hundred, and thousand. 2. Apply rounding techniques using a number line and the symbol (≈). 3. Demonstrate the ability to round numbers accurately to the nearest ten, hundred, and thousand.

Meaningful Understanding: Students will develop a deep understanding of rounding numbers by using a number line and the symbol (≈). They will learn to identify the place value of a given digit and determine whether to round up or down based on the digit to its right.

Starter Question: Ask students: “How do we decide whether to round a number up or down?”

Learning Preparation: 1. Prepare a number line from 0 to 1000, clearly marking the tens, hundreds, and thousands. 2. Create a set of numbers for rounding practice, including various numbers between 0 and 1000.

Learning Activities: 1. Introduction (5 minutes): - Review the concept of place value and its importance in understanding rounding. - Discuss real-life scenarios where rounding is useful, such as estimating quantities or prices.

1. Number Line Rounding (15 minutes):
   • Introduce the number line and explain its purpose in rounding.
   • Demonstrate how to round a number to the nearest ten, hundred, and thousand using the number line.
   • Model the process by rounding a few numbers together as a class.
   • Provide opportunities for students to practice rounding independently using the number line.
2. Symbol (≈) Rounding (15 minutes):
   • Introduce the symbol (≈) as a way to represent rounded numbers.
   • Explain that the symbol means “approximately equal to.”
   • Demonstrate how to round a number to the nearest ten, hundred, and thousand using the symbol (≈).
   • Practice rounding together as a class, using the symbol to represent the rounded numbers.
   • Provide opportunities for students to practice rounding independently using the symbol (≈).
3. Assessment (10 minutes):
   • Distribute a worksheet with a set of numbers for rounding practice.
   • Instruct students to round each number to the nearest ten, hundred, and thousand using either the number line or the symbol (≈).
   • Collect and review the completed worksheets to assess students’ understanding of rounding.

Assessment: The completed worksheet will serve as an assessment tool to evaluate students’ ability to round numbers to the nearest ten, hundred, and thousand using the number line and the symbol (≈). Review the worksheets to identify any areas where students may need additional support or practice.