Microscope Basics
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Objective
I can focus a microscope to view a specimen at different magnifications.
Part 1 of 3
Warm-up video
Fresno State · 4:24
We don't generate video — this one is by Fresno State on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.
Part 2 of 3
Practice
7 questions
Describe the steps for properly carrying a microscope from the storage cabinet to your workspace. Why is it important to follow these steps?
Explain the function of the coarse and fine focus knobs on a microscope. When would you use each one?
Part 3 of 3
Exit ticket
Quick comprehension check
“You are viewing a specimen at 4x magnification and the image is clear. Describe the next steps you would take to view the specimen at 10x magnification. You have switched to the 40x objective lens, but the image is blurry. What two adjustments could you make to try and focus the image? After switching to a higher power objective lens, the specimen is no longer in the center of your view. What should you do to re-center it?”
Sample answer included in the free materials
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Teacher guide, student handout, and slides — free, in Google Docs format
Teacher Guide
Complete lesson plan with answer keys and alternate activities
Student Handout
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