Calipers
Lesson Title:
Exploring Measurements: Using Calipers on a Blue Block
Grade Level:
Middle School (Grades 6-8)
Duration:
45 minutes
Objectives:
Students will understand the basic functions and parts of a caliper.
Students will learn how to accurately measure length, width, and depth of objects using calipers.
Students will develop skills in recording and comparing measurements.
Materials:
Calipers for each student or pair.
Blue blocks (identical in size and shape) for measuring.
Measurement recording sheets.
Pencils.
Introduction (10 minutes):
Demonstration: Show a caliper and explain its parts - main scale, vernier scale, depth gauge, etc.
Interactive Q&A: Ask students what they think they can measure with a caliper.
Hook - The Caliper Crisis Story
Activity (25 minutes):
Caliper Handling: Each student or pair gets a caliper. Allow them to explore its parts under your guidance.
Measurement Practice:
Distribute the blue blocks (Docking Clamp).
Demonstrate how to measure the length, width, and depth of the block using the caliper.
Students practice measuring their blue block and record these measurements on their sheets.
Guided Practice:
Accuracy Check: Compare measurements among students to discuss any variations and how to minimize them.
Measurement Challenges: Ask students to measure a specific part of the block (e.g., the smallest edge) to encourage precision.
Students will begin using their measurements to recreate the part using a 3D drawing app (example: TinkerCad or SketchUp for Schools)
Conclusion (10 minutes):
Group Discussion: What did the students learn about the importance of accurate measurements?
Reflection: How can the skills learned today be applied in real-world scenarios?
Homework Assignment: Students write a short paragraph on how calipers are used in a profession of their choice.
Assessment:
Observation of students’ ability to handle and use calipers.
Accuracy of the students' recorded measurements.
Participation in discussion and reflection.
3D designed (clamp part)
Extension:
Introduce different types of calipers (e.g., digital calipers) and their uses.
Incorporate more complex objects with different shapes for measurement in future lessons.
3D print the clamp part