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Observing Single Celled Organisms

Time Frame:
1 class period that runs 60 minutes.

Group Size:
Small Groups


 

Summary:
Student will observe and describe cellular structures and functions of pond microorganisms. They will identify cell parts and determine how the organisms carry out the functions of life such as extracting energy from food, removing waste, and producing their own food.

Main Curriculum Tie:
SEEd - Grade 7 (2017)
Strand 7.3: Structure and Function of Life 7.3.1

Plan and carry out an investigation that provides evidence that the basic structures of living things are cells. Emphasize that cells can form single-celled or multicellular organisms and that multicellular organisms are made of different types of cells.

Materials:

  • pond water mixture (pond or puddle water is best but not essential) and a handful of hay or grass. It needs to sit in a warm room for about 5 days to have maximum growth)
  • microscopes
  • coverslips
  • droppers or pipettes.
  • student worksheet

Attachments

Instructional Procedures:

  1. Prepare the pond water mixture several days in advance. Copy the student sheets if desired.
  2. Read the introduction and procedures with students.
  3. Allow time for students to work with the microscopes.
  4. If you have a flex camera or video camera that fits over the top of a microscope, project a slide on the screen while students work. Allow students to bring up a good slide they make.
  5. Remind students to complete drawings and answer questions. If they are engaged in their observations, finish on the next day.

Assessment Plan:
Scoring Guide:

1. Students prepare slides and follow directions for microscope use……4
2. Student drawings are reasonably accurate………………………..4
3. Questions are answered correctly…………………………..4

Bibliography:
Lesson Design by Jordan School District Teachers and Staff.

Author:
Utah LessonPlans

Created Date :
Oct 02 2014 11:11 AM

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