Objective: Students will be able to identify and use standard units of measurement, including inches, feet, centimeters, and meters.

Activities:

1. Introduction: Begin by asking students if they know what measurement is and why it is important. Discuss how we use measurement in our daily lives, such as measuring ingredients for cooking or measuring our height and weight at the doctor’s office.

2. Introduce standard units of measurement: Show students examples of rulers, measuring tapes, and yardsticks. Explain that these tools are used to measure length or distance. Introduce the standard units of measurement for length: inches, feet, centimeters, and meters. Show students examples of each unit and explain how they are used.

3. Practice measuring with non-standard units: Give each student a piece of string or yarn and ask them to measure different objects in the classroom using their string. Have them compare their measurements with a partner and discuss any differences. Explain that while non-standard units can be useful, it is important to use standard units for accurate measurements.

4. Practice measuring with standard units: Provide each student with a ruler or measuring tape and have them practice measuring objects in the classroom using inches or centimeters. Encourage them to measure objects of different sizes and shapes.

5. Review and assessment: Review the standard units of measurement and ask students to identify which unit they would use to measure different objects. Provide a worksheet with pictures of objects and ask students to write the correct unit of measurement next to each picture.

Worksheet:

1. Measure the pencil in inches: ____
2. Measure the book in centimeters: ____
3. Measure the desk in feet: ____
4. Measure the door in meters: ____
5. Measure the window in inches: ____
6. Measure the chair in centimeters: ____
7. Measure the rug in feet: ____
8. Measure the table in meters: ____

Note: The measurements may vary depending on the size of the objects in your classroom.