Lesson Plan: 1B.1.03

Hamble Lesson Observation Plan
Learning About
How do we use a microscope to see cells?
Keywords:
  • Light microscope: Device that uses visible light and a series of lenses to produce an enlarged image of an object. (2)
  • Focusing knob (1)
  • Light source (1)
  • Stage (1)
  • Objective lens (1)
  • Specimen: a sample of a substance or material for examination (1)
  • Eye piece (1)
Memory Anchor:
Method Precise Learning Objective Linked Question / Activity
(Designed for maximum working out)		 Stepping Stones Pitstop Check
(Thinking Map)
T DESIRABLE: To prepare a slide...

DESIRABLE: To prepare a slide...
T To focus a (light) microscope, put your head to the side and raise the stage until it is as close to the objective lens as possible without making contact. Then looking through the microscope, wind the stage down using the coarse focusing knob. The fine focus using the smaller knob. Why, when focussing a microscope, is it important to have the stage close to the objective lens at the start and wind the stage down as you focus?

Use Microsopes
T Biological diagrams are line drawings of 'the generalised specimen'. How should biological drawings be made?
D Students to record cell structure as a labelled biological diagram as seen using a light microscope. What organelles can be seen under a light microscope?
W What is the difference between a onion bulb cell and a daffodil bulb?

Links To the Big Ideas
ForcesParticlesEnergyCells