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7

THE PROCESS OF CELL DIVISION
(BIOLOGY - UPPER SECONDARY)

 

ROHANA BT. ABDUL HALIM
ROSLINAH BT. ALIAS
KOLEJ MARA SEREMBAN
JALAN AMINUDDIN BAKI
70100 SEREMBAN, N. SEMBILAN

 

Background :

Many students have problems in understanding the process of cell division. An interesting teaching and learning process such as constructing models and hands on projects can help them.This model/kit consist of the following items:

  • Materials to construct model
  • Instructional cards (5 pieces)
  • Example model with a list of structures to be labelled is provided along with a brief description of the structures.
  • All materials and instructions are placed in a compartmentalised box.
Objectives :

At the end of teaching and learning process, the students will be able to

  1. work as a team in constructing the model
  2. understand the concept and significance of the process in living cells and organisms
  3. remember and explain every phase of mitosis
Benefits for teaching- learning process:
  • The kit can be used in the first topic of Biology Form 4 syllabus and Science Form 4
  • Learning process is more on inquiry and discovery, to enhance their interest.
  • To create their thinking skills and creativity
  • Can be used as teaching aids for outdoor activity
Apparatus / Material :

Materials to construct model (7-P1):

  • Manila card/paper plates
  • Threads of different colours and thickness
  • Beads

Instructional cards (5 pieces) (7-P2):

  • Each card will consist of information and directions (for students) regarding a phase in mitosis
  • Information includes the structure and position of the chromosomes, nucleus membrane, spindle fibbers, centrioles and other information relevant to visualise the cell
  • Cards are numbered sequentially to the phases.
Constructions of teaching aids :
  1. Materials to construct model are prepared (7-P1).
  2. Instructional cards with brief information are prepared for students' references (7-P2 and 7-P3).
  3. A complete model of a phase, without label, is prepared for the students to label (7-P4b).
Implemen-tations :
  1. Students are divided into groups of a maximum number of five.
  2. Each group is given a complete set of kit.

    - each group is to set up the model within a given time, based on the information given on the instructional cards using their understanding.

    - time allocated depends on

  3. i. whether the group is to set the model for all or one of the phases
    ii. the students' level of education

  4. Each group is to construct the model in team or individually based on information given on the instructional cards.
  5. In setting up the model, no references are allowed and the students are not required to do any prior reading. Thus, stimulating their thinking process and prodding their creativity.
  6. Each phase of the model is arranged in a sequence on a board (or a flat surface (7-P4a).
  7. Students give a brief explanation of the process in a report or presentation.
  8. Students will also do the labelling of the model cell (7-P4b).
  9. The teacher will supervise the groups and give necessary comments to reinforce their understanding of the process after the report or presentation.
  10. Making the task in a competition form will create a lively and competitive atmosphere.
Suggestion for modification :
  • The same method can be used to construct a meiosis model
  • Then, the comparison for both process can be list out
  • The significance of mitosis and meiosis can be relate to certain examples in heredity

 
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