(^)
- SV OK, now, umm...what is it Dialog Coding Comments
we want to put down for our question we want to find? Unknown forces
exerted on the strut.
C A physics claim, ends the previous episode. Relates to the “forces”
part of the question.- EW Find the tension so we want, we basically want to find the
tension.
C New Episoderelating to the strategy, and the A physics claim,- SV Tension. Cl target variable. Clarifies the statement in 36.
- JV And also this force here. [points to the hinge] C A physics claim.
- SV Write down we want to find out unknown forces on the strut. On
the strut, unknown forces...find them!
C No follow through on her claim. [said forcefully] [off task chatter- EW What are the unknown ensues]
forces on the board? OK, so we have. 41. SV Now, no, no. That's the C Relates back to his claim in 36.
question. 41B. We have to use our approach. Ch C She offers an alternative idea Challenges EW’s claim in 40.
based on the problem-solving strategy.
41C. We have to use the equilibrium. 42. JV It's a uniform strut, it's not a C
board. 43. EW We use these. W G He offers information from the problem statement. Refers to equations on sheet. - SV Excuse me? 45. EW OK, first of all, we have to RQCl RQCl = Request for Clarification.
know that x of y. 46. SV No, no...just write that Ch Cl Clarifies his statement in 43, which relates back to 40 and 36.
46B. we have to use like Newton's law or whatever. Don't write that, those are
formulas. That goes in the physics description.
C Her challenge suggests an alternative idea to what EW has
said in 36, 40, 43, and 45.
JV Newton's 2nd law. 48. EW No. Ch Cl (^)
JV No? 50. SV Yes, we have to use the sum RQCl He doesn’t understand the Ch.
of forces, babe. 51. JV OK Ak C An additional claim. This dialog is very typical of SV.
SV Newton's 2nd and then the equilibrium stuff. C An additional claim.
JV Equilibrium stuff? 54. SV Statics, statics...don't we RQCl
have to figure out? What are we finding? RQCl Cl^
Table 3-7. Group 4C, Lines 35-54.