1. Introduction to the Microscope
Care
Parts
Focusing
Optional PowerPoint Presentation - Students will have their microscopes out for reference as we go through each of the steps. As an introduction, students will be asked what kinds of things they can do with this tool.

2. Always carry with two hands. Only use lens paper for cleaning.
Microscope Care
Always carry with two hands.
Only use lens paper for cleaning.
Do not let lens touch specimen or slide.
Do not force knobs.
Teacher demonstrates how to hold the microscope, where the lens paper is located, and how to use it. Students will be invited to turn the knobs and observe the stage as it moves up and down. Teacher will demonstrate how to store the microscope.

3. Microscope Parts Eyepiece (Ocular Lens) Body Tube Revolving Nosepiece
Arm
Objective Lens
Stage
Stage Clips
Coarse Adjustment Knob
This may, or may not, be the same version of the microscope used in class. Students will be identifying the parts and functions of the parts on the microscopes at their desks as we go along.
Squires, J. (2013). Microscope [Print].
Diaphragm
Fine Adjustment Knob
Light Source
Base

4. Using the Microscope Place the slide on the microscope.
Use stage clips.
Start with the lowest setting.
Look into the eyepiece.
Use the coarse adjustment knob.
Give students a slide to practice focusing and changing objectives.

5. Using Medium Power Move the nosepiece to the medium objective.
Make sure objective will NOT touch slide.
Do NOT use the coarse adjustment knob.
Use the fine adjustment knob.
If you don’t see anything, go back to low power and try again.
Have students exchange slides so they can look at different things; walk them through using the high power objective to focus slides. Emphasize not using the coarse objective during this process, as it will crack the slides.

6. Using High Power Move the nosepiece to the high objective.
Make sure objective will NOT touch slide.
Do NOT use the coarse adjustment knob.
Use the fine adjustment knob.
©2012, TESCCC
Have students exchange slides so they can look at different things, walk them through using the high power objective to focus slides. Emphasize not using the coarse objective during this process, as it will crack the slides.