1998 WWLPT Biology Institute:  Motion


Lesson Title
Plant Motion: The Untold Secrets
 
         
     
 
 by Sue Ford
 

 



Summary/Abstract
Instructor's Objectives
Target Age or Ability Group Audience
Teacher Instructions/Special Precautions
Materials & Equipment Needs
Background [Prior Knowledge or vocabulary necessary to complete activity]
The Student Lab
Method of Evaluation/Assessment
Extension/Reinforcement/Additional Ideas
 



Summary/Abstract  to top
    This laboratory activity is a fun assignment which fosters the spirit of teamwork and requires high order thinking.  It is structured to appeal to the audio, visual, and kinesthetic learners, as well as stimulate student inquiry.  The activity is designed according to  National science standards A thorough G and focuses heavily on group dynamics.
 
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Instructor's Objectives to top
This laboratory method allows students to: a)  Design a scientific experiment that demonstrates plant motion using available  materials;  b)  observe, recognize and describe the motion viewed, as well, document any changes caused by various solutions and/or temperature; c) to articulate their findings using organized data, scientific write ups and discussion as they move from common knowledge to technical terminology and knowledge;  d) receive quick feedback in order to solidify the idea that motion does not require moving the organism from place to place and; e) to clarify their understanding of continuous motion and why it is absolutely essential for sustaining life.

The desired assessment tools are authentic assessment, inquiry and the laboratory method.  However, this activity incorporates many teaching and learning strategies: group dynamic, cooperative learning, challenge activity, reading, teaching each other, deductive and inductive reasoning

Allow students to become frustrated.  This is a sign of thinking not an inability to think.  Monitoring students helps to detect real problems.

National Science Education Teaching Standards A, B, C,  D, E,  , G



Target Audience or Age Group  to top  to top

Notes to the Teacher: to top
     1.  Students need a basic working knowledge of motion , the scientific method  or research method as well as,
          individual responsibilities.
     2.  Preparation time needed is at least 90 minutes
     3.  Class time needed is 90 to 135 minutes
     4.  Hazards/Precautions - sharp objects, glass and heat.

  Rubric:   This laboratory activity is graded using a rubric. The following criteria are to be kept in mind when using a rubric: The rubric is to be constructed in a clear and concise manner.  The scoring range must be stated clearly. One is equivalent to a
"D" while five is an "A".  State clearly how the grade is altered for various reasons: Example absences.  Objectives must be
executed firmly.  The rubric must be clearly explained to the students before beginning the activity.  The purpose of the rubric is
to help the student set goals and work toward achieving the goals within the group.

Cubing:  (skills: review, recognition, recall, association, discrimination)
Cubing is an activity of engagement and reflection. It is also a learning center model and can be used with any subject.  The activity can be used to review.  In fact you decide how it best suits your needs.  Remember to keep the objectives clear.  The term cubing represents the support used to display the six phrases or terms. The students focus on one term beginning with number one.  Each students contributes to the pool of knowledge by telling all that is known about that word, as it relates to that topic.  This procedure is repeated until all six phrases or words are discussed.  Each support has six 5x7 index cards titled beginning cards and six titled ending cards.  These cards are used to begin and end the activity.  Cubing is an exciting activity.

Cubing Objectives
1.  To identify and categorize knowledge needed to design an experiment related to this laboratory activity
2.  To carry out a group discussion with focus on the cube cards.
3.  to help each other understand the value of each term or category as it relates to the assignment.

Topic _________________________________

Title of Lab ___________________________

 Long term Goal ________________________________________________

Learning Activities: (remember all cards are related to this lab in some way)
1.  Get cube cards and assemble cube.
2. Cards: (use anything that serves the purpose)
    a) use a different set of cards for each lab;
    b) Number cards chronologically by lab and word.  Ex. categories: I-1 My World, I-2 Scientist, I-3 Life Processes,
        I-4 Vocabulary, I-5 Everyday living, I-6 Other ( allow for student input)
3.  Value of activity - Everybody gives to the pool of knowledge !!
4.  Decide what information is needed from this exercise to complete objective No. 1.  Return cube and cards to the
     storage station.
5.  After completing the laboratory activity get the cube and six blank cube cards.  Ex. I-1(end)
6.  Write and discuss one technical term on each card that was by the group to explain or demonstrate plant motion.
     Continue until all cards are completed.

Individual Critique
1.  Each group member must check and sign somebody else's working lab write up before the paper is submitted for a grade.
2.  Check for clarity and grammar. (improves writing, reading and penmanship skills) 

L.A.M.P.- LAB/ACTIVITY MANAGEMENT PROCEDURE

During designated labs and/or activities, students will work 3 or 4 to a group.  Each group member will have a specific role or job.  The roles are described below.  Read through each one carefully since you will have each role in the near future.

P.I. - Principal Investigator
         The principal investigator is:  in charge of the operation; responsible for the lab set-up; the conductor of group discussion;
         the person who conducts the lab procedure or assigns duties to the other group members; the only group member
         allowed to talk to the teacher.
M.M.- Material Manager
         The material manager is: responsible for obtaining all necessary materials and/or equipment for the lab; responsible for
         organizing materials and/or equipment in the work space; allowed out of seat to pick up needed materials.
M.D. - Maintenance Director
         The maintenance director is: in charge of cleaning up the work space; allowed to assign other group members duties to
         help in the clean up; responsible for returning materials and/or equipment to the supply station; allowed out of seat for
         clean up.
S.D. - Safety Director
         The safety director is: responsible for enforcing all safety rules; asked to monitor group to keep everyone working
         on the task at hand; responsible for reporting any accident to the teacher.

Self Test - Rephrase the duties statements to form as self test.  The students will answer all questions by writing T" for true
         and "F" for false.  Include the test on the backside of the duty sheet.
 



Materials & Equipment Needs to top
    Vocabulary cube                                           Electric burner                    Forceps
    Notebook, pen, pencil, coloring pencils         Burner mitten                      Lens paper
    Dropping pipette                                          Concave slides                    Compound Microscope
    Probe                                                          Cover slips                          Heat tongs
    Beakers- 1200, (3) 100 ml                           Elodea                                High intensity lamps
    Thermometer                                               Water                                  New Guinea Impatient plant
    Funnel                                                          Salt                                     Carrying Tray
    Test tube, Test tube holder                            Clock

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Background to top
   The students need a working knowledge of the scientific method, laboratory safety, the microscope, its care and uses. Students do not need to know how to calculate motion but a vague knowledge of motion is necessary.  They will need to define motion, have some idea of the factors that influence motion and to be able to visualize motion in the everyday world.   From this visualization of motion they will be able to move from the point of vagueness to a concrete understanding that life is maintained by motion.
    When students complete this activity they will be able to: a) associate motion with plant wilting, transport, rigidity, osmotic pressure, cytoplasmic streaming and be able to explain why motion is a necessary force of life; b) define, recognize, explain, and provide a demonstration of various plant motions; c) articulate their findings using common and scientific terminology and; d) associate motion with life and life processes.
 

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The Student Lab to top

Introduction  
      This laboratory activity requires the student to think in order to understand plant motions, why they occur and how to recognize them. .  It requires the student to work with others, experience group dynamics and to pose questions that lead to the formulation of hypotheses and the testing of those hypotheses.

Purpose
      The purposes of this laboratory activity are to: a) determine if motion takes place in plants and to determine what causes this motion; b) design a working scientific experiment that demonstrates plant motion using available materials;  c) articulate the results using a scientific write-up and partner critique.
 
Procedure - Teacher
     1.  Focus Students-  (Tell them to- write down whatever you are thinking now, that is not related to this lab, on the
          postum.  Place the postum under your seat and sit on it until the assignment is complete)
     2.  Explain and entertain questions related to the grading rubric.
     3.  Assign student groups and review L.A.M.P. (every group member is given specific responsibilities) assignments

Student Directions
 Procedure (A)
     1.  Read all instructions before anything else is done.
     2.  Determine L.A.M.P. assignments
     3   Assemble cube (each student shares knowledge about the topic) and complete process
          One way to organize the information is the KWL.  What I Know.  What I Want to know. What I Learned.
     4.   Observe equipment
     5.  Formulate hypothesis
     6.  Use information from the cubing activity to construct a working guide. This guide will be used to test the hypothesis.

Procedure (B)
     1.  Each  person needs a  laboratory guide
     2.  Read and follow directions
     3.  Read Reminder
     4.  Record observations
     5.  Complete end cube activity (possible vocabulary terms - cyclosis, plasmolysis, turgor pressure, temporary and
          permanent wilting, homeostasis, diffusion, osmosis, adhesion, cohesion, flaccid, xylem, phloem, transport, transpiration,
          tropism and cell division
     6.  Complete critiques
     7.  Submit scientific write ups and critiques
     8.  Post lab - Review results with group, class and teacher
     9.  Reach class consensus
   10. Complete Scattergram



Methods of Evaluation/Assessment to top
      Rubric                                                Authentic assessment
      Class consensus                                   Inquiry
      Scattergram                                         Laboratory method
      Oral responses
      Individual critiques

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Extension/Reinforcement/Additional Ideas to top
     1.  Students may redesign the experiment to be used as a part of the inter school support program.
     2.  Students may redesign the experiment to include a mathematical component.  Ex. constant motion, field measurement,
          volume and displacement.
     3.  Extend the activity with a computer simulation and/or video.
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References Including Web Addresses to top
     L.A.M.P. - Laboratory Activity Management Procedure, Cleminson, ECube 2/92
     KWL - Dimensions of Learning Instruction Manual
     Elodea Densa -http://www,2.iper.net/Danilo/elodea.htm   (picture)
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