Mollie Deuel's Teaching Portfolio

Here is an example of a demonstration and discrepant event.

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Topic: Human Impact: Osmosis and Diffusion

Grade level: High School

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Virginia Standards of Learning (SOLs):

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Primary VSOLs for Biology:

1. BIO.3  The student will investigate and understand relationships between cell structure and function. Key concepts include

d)  the cell membrane model

e)  the impact of surface area to volume ratio on cell division, material transport, and other life processes. 

 

Learning Objectives:

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Understand:

• The cell membrane is a selectively permeable membrane that determines what can go in and out of the cell.

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Know

• Osmosis refers to the movement of water molecules through a semi-permeable membrane from an area of greater water concentration or pressure (lower solute concentration) to an area of lesser water concentration or pressure (higher solute concentration) . 

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Do

• describe processes associated with movement across the membrane for  osmosis

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Students will be:  Watching the teacher perform the demonstration and making predictions about what is going to happen.  They will also be answering any questions the teacher asks to the best of their ability.

 

Teacher will be:  Carrying out the demonstration while the students watch.  Teacher should ask prompting questions that direct students to make predictions based on the best of their ability.  Teacher should also be explaining what the demonstration is exhibiting as it progresses.

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Assessment: Teacher can give an exit card or a short quiz at the end of class assessing the students learning.

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Link to a demo video example here

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Link to an example of a lesson plan and student handout here

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