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      | 
    
       Tape A 
      
      
       
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       picture1
       
       
      clip1a
       
      clip1b
      
       
      clip2
      
       
      clip3
      
       
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    names 
       transcript1a 
      transcript1b 
      transcript2 
      transcript3  | 
    
       0:16
       
       
      6:07
       
      7:27
       
      0:46
      
       
      1:18
      
       
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       0:46
       
       
      7:27
       
      8:40
       
      1:11
      
       
      2:00
      
       
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       introducing the students
      
       
      defining "rocket"
       
      distinguishing "rocket"
       
      introducing the artifact
      
       
      describing the rockets
      
       
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       clip4
      
       
      clip5
      
       
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    transcript4
       transcript5  | 
    
       17:18
      
       
      18:28 
       
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       18:30
      
       
      19:23
      
       
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       selecting rockets to compare
      
       
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       clip6
       
       
      clip6e
       
      clip7
      
      
       
      clip8
      
       
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    transcript6
       transcript6e 
      transcript7 
      transcript8  | 
    
       27:05
       
       
      23:25
       
      36:30
      
       
      39:47
      
       
     | 
    
       28:00
       
       
      28:00
       
      37:12
      
       
      40:32
      
       
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       cross-talk; watching simulation
       
       
      first rocket launches
       
      comparing notes
      
       
      how many times?
      
       
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       clip9
      
      
       
      clip10
      
      
       
      clip11
      
      
       
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    transcript9
       transcript10 
      transcript11  | 
    
       42:18
      
       
      44:32
      
       
      45:34
      
       
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       43:10
      
       
      45:00
      
       
      46:20
      
       
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       discussion of nose cone
      
       
       
      
       
      discussion of fins
      
       
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       clip12
      
      
       
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    transcript12 | 
    
       53:28
      
       
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       55:00
      
       
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       group calculating
      
       
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       clip13
      
      
       
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    transcript13 | 
    
       1:02:10
      
       
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       1:03:16
      
       
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       nature of simulation
      
       
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       clip14
      
      
       
      clip15
       
      clip16
      
      
       
      clip17
      
      
       
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    transcript14
       transcript15 
      transcript16
       transcript17  | 
    
       1:18:22
      
       
      1:20:03
       
      1:21:27
      
       
      1:22:38
       
     | 
    
       1:19:04
      
       
      1:21:27
       
      1:22:30
      
       
      1:23:52
      
       
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       lines: 20-30 
      
       
      lines: 41-77 
       
      a moment of collaboration  
      
       
      lines: 81-107
      
       
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      | 
    
       Tape B
      
       
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       clip18
      
      
       
      clip19
      
       
       
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    transcript18
       transcript19  | 
    
       6:15
      
       
      1:16:14
       
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       6:53
      
       
      1:17:30
       
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       relation to model rockets
      
       
      showing off the model rockets
       
       
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    clip
       
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    transcript | 
    
       42:38
      
       
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       44:20
      
       
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       organization of participation; also 19:17-20:20,
      40:10-40:45 
      
       
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      | 
    
        
      
       
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       relation to artifact; also 24:17-24:27,
      1:05:45-1:06:01 
      
       
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    clip
       
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    transcript | 
    
       46:00
      
       
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       49:30
      
       
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       confusing data; also 22:20-24:20, 25:25-25:56,
      34:34-34:58 
      
       
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    clip
       
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    transcript | 
    
       1:01:32
      
       
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       1:03:19
      
       
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       working through the prediction; also 35:15-37:09,
      52:30-54:20, 59:48-1:01:39, 1:12:34-1:14:50
      
       
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