Biology Lessons Part 2: Population Biology

 

 Lesson 2.1: Producers: How Do Plants Grow?

Knowledge Mapping Exercise

Time

This exercise takes approximately 30 minutes to 1 hour.

 

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Objectives

 

Once you have completed this knowledge mapping exercise you should be able to:

1.

Have a deeper understanding of the biology concepts in lesson 2.1, Producers: How Do Plants Grow.

2.

Identify masked concepts based upon their relations to other concepts.

 

 Exercise 1  Self Quiz
 To Do  1. Open the semantic network entitled '2.1d How Do Plants Grow Net' by double clicking on the file if it is not already open.
  2.  Select Mask Central from the Concept menu. This will cover up the central concept.
  3. 

Select Preferences from the Edit menu. Check to see if there is an 'x' in the box called Ask before Unmasking. If there is no 'x' there, click on the box once and an 'x' will appear. Click on the Set button.

Figure 1. Preferences dialog on Edit menu.

 

  4.  Select Random Jump from the Move menu. SemNet will move to a new masked concept. You can use the shortcut for Random Jump by holding down the Command (Apple) key and pressing the semi-colon (;) key.
5.  When you think you know what the masked central concept is, click once on it. A dialog box will appear in which you can type the name of the concept. Allow Name Completion to help you complete the word or phrase. Click on OK.
  6. If you typed in the correct response, the concept will be unmasked.
  7.  If you typed in the incorrect response, you can try another response or click on the Reveal button to unmask the central concept.
  8. Repeat steps 4 through 7. Continue in this fashion until all 38 concepts have been reviewed. The SemNet software will take you at random to each of the 38 concepts which have 3 or more instances (unless you interrupt the sequence by performing another task).

 

9. Select Do Not Mask Central on the Concept menu. Then close the net called '2.1 How Do Plants Grow Net' by clicking in the box in the upper left corner of the window.
 Exercise 2  Concept Identification Game
 To Do 1. Organize yourselves into groups of four students each. In each group, form two teams of two people each.
   2.. Each group of four students should gather around a Macintosh computer to look at the semantic network entitled '2.1d How Do Plants Grow Net'. Double-click on the file if it is not already open.
   3. Select Mask Central from the Concept menu. This will cover up the central concept.
  4. 

Select Preferences from the Edit menu. Check to see if there is an 'x' in the box called Ask before Unmasking. If there is no 'x' there, click on the box once and an 'x' will appear. Click on the Set button.

Figure 1. Preferences dialog on Edit menu.

 

 

 

   5. You are now ready to begin playing the game. The two teams will take turns identifying the masked concepts. Team A will go first. Select Random Jump from the Move menu. SemNet will move to a new masked concept.
  6. Team A partners, try to identify the masked concept while Team B watches without helping (time limit about one minute). When you think you know what the concept is, click once on the concept. A dialog box will appear in which you can type the name of the concept. Allow Name Completion to help you complete the word or phrase. Click on OK.
  7. If you typed in the correct response, Name Completion will assist you and the concept will be unmasked. Congratulations. You have earned 2 points for a correct response on the first try.
  8. If Team A cannot identify the masked concept on the first try, Team B gets a chance. Team B partners can decide on the name for the masked concept that Team A did not know. Enter the name into the dialog.
  9. If Team B typed in the correct response, Name Completion will assist and the concept will be unmasked. Congratulations. Team B has earned 1 point for a correct response on the second try.
  10. If neither Team identifies the concept, click on the Reveal button to see what it is. In this case, neither Team has earned any points.
  11.

It is Team B's turn. Repeat steps 5 through 10. Continue in this fashion until all 38 concepts have been reviewed. The SemNet software will take you at random to each of the 38 concepts which have 3 or more instances (unless you interrupt the sequence by performing another task). Keep score using Table 1, below, writing down the name of the concept in each case. The maximum score is 76 points.

Table 1. Score Card.
 Concept Grou p A Group B
 1.    
2.    
3.    
4.    
5.    
6.    
7.    
8.    
9.    
10.    
11.    
12.    
13.    
14.    
15.    
16.    
17.    
18.    
19.    
20.    
21.    
22.    
23.    
24.    
25.    
26    
27.    
28.    
29.    
30.    
31.    
32.    
33.    
34.    
35.    
36.    
37.    
38.    
Total    

 To Do   12. Select Do Not Mask Central on the Concept menu. Then close the net called '2.1 How Do Plants Grow Net' by clicking in the box in the upper left corner of the window.
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