Asia-Pacific Forum on Science Learning and Teaching, Volume 9, Issue 2, Article 12 (Dec., 2008) Mustafa ÜREY & Muammer ÇALIK Combining different conceptual change methods within 5E model: A sample teaching design of 'cell' concept and its organelles Previous Contents Next

Appendix –1: Worksheet

Are there any differences between animal and plant cells?   Materials:  Angular plate    Oval plate    Play dough   Ping-pong ball    Nylon fiber    Clothes line        Tube macaronis      Haricot bean      French bean      Chickpea       Wided rubber       Round rubber     1 Turkish Lira coin        5 cent coin         Marble       Glue        Knife

If you follow the directions, you are able to answer the above questions.

 

	Direction	Concrete Material	Organelle
1	Distribute ‘play dough’ into both angular and oval plates.
2	Surround each of plates with nylon fiber and embed spaced composition nylon fiber within the play dough with your pencil.
3	Place each of grains of haricot bean into each of plates randomly
4	Place each of marbles into each of plates randomly.
5	Place each of chickpeas into each of plates randomly.
6	Compose zigzag constructions with two layers by using wide rubber, and place them to each of the plates randomly.
7	Compose two zigzag constructions by using round rubber, and place them to each of the plates randomly (they must be ranged from ping-pong ball to nylon fiber).
8	Place randomly six 5 cent coins into the oval plate, and three 1 Turkish Lira coins into the angular plate.
9	Surround the angular plate with a clothesline, and embed the spaced composition clothes line within the play dough using your finger.
10	Spread the glue on two tube macaronis, and then place them into the oval plate.
11	Place the French bean into the angular plate.
12	Locate one of the ping-pong balls to the center of the oval plate while placing the other to edge of the angular plate.

(Images were retrieved July 10, 2008 from http://images.google.com.tr/images)

Q1: Assume that your generated models illustrate animal and plant cell, which of them is an animal cell? Which of them is a plant cell? Please defend your response.

………………………………………………………………………………………………………..

Q2:  In your generated models, please match your used materials with cell organelles by marking the type of cell with signal (X)

 

 

Material	Organelle’ name	Animal cell	Plant cell
Angular plate
Oval plate
Play dough
Ping-pong ball
Nylon fiber
Haricot bean
Marble
Chickpea
Wide rubber
Round rubber
5 Cent Coin
1 Turkish Lira Coin
Clothes line
Tube macaronis
French bean

 

Q3: Since you tracked the same steps for both of the plates (steps 1-9), why did you follow the last three steps (10-12) for the only one plate? Please explain your reason.

         …………………………………………………………………………………………………...

Q4: Could you compare the position of the nucleus in the animal cell with that of the plant one? Please defend your response.

……………………………………………………………………………………………………

Q5: Taking into account the foregoing schema, please address the different organelles between the animal and plant cells.

……………………………………………………………………………………………………..

                          

Based on your gained experiences, please answer the following question

                        

Q6: Please compare the factory with the structure of 'cell' in terms of their structural or functional features and then fill in the gaps.

 

Analog Feature	Comparison	Target Feature
Factory	Compared to	Cell
Administration and control centre of factory	Compared to	…………………….
…………………..	Compared to	Cytoplasm
Uploading and downloading department	Compared to	………………..
Power station of factory	Compared to	…………………..
…………………………….	Compared to	Lysosome
Manufacturing center of factory	Compared to	…………………
Packaging department of factory	Compared to	……………….
……………………………..	Compared to	Vacuole
Conveyor belt system of factory	Compared to	……………………..
…………………………..	Compared to	Cell Wall
Energy and storage centre of factory	Compared to	………………
…………………….	Compared to	Centrioles