[Students first day using Turtle Art in Sugar] Lindgren [to Alayna; at table, but not seen.]: Have you learned about angles yet? Alayna: [undecipherable.]
Lindgren to Alayna: Yeah. Brooks to everyone: [From other table in the room; not seen.] I know you guys want us to help you when you get stuck,
Brooks: but the beauty of Turtle is what we call 'debugging' your programs.
Brooks: So that if the Turtle starts going directions you didn't expect,
Brooks: you got to go back through your steps to try and figure out how to correct them. Sophia: [Laughs quietly.]
Sophia: I made it go dowwwwwn. [makes downward hand gesture.] Lindgren: Yep, so you're making steps. So, you see, if you click on the right one first.
Lindgren: Maybe click on that one. Victoria to her "turtle": I don't know what I did.
Victoria: I'm sorry turtle, but I don't know what I did. Lindgren to Alayna: What did it do?
Victoria: Oh, yeah! I made a bigger one! Sophia: Oh, oh, oh! [laughs] Alayna to Lindgren: It made that that side of the square.
[Victoria and Sophia celebrate/clap.] Lindgren to Alayna: It turned right... Alayna: Ninety degrees.
Lindgren to Alayna: Ninety degrees! There you go! You figured it out!
[Inaudible to keep participant anonymity. Sophia still looking on with Victoria.]
Lindgren: Then it went forward by 100 spaces. [Sophia points to Victoria's screen, suggesting an idea to Victoria to try.]
Victoria to Sophia: But I want this moved! Lindgren to Alayna: Yeah.
Lindgren to Alayna: And what shape has 90-degree angles?
Victoria: How do we get rid of the lines? Alayna: A square?
Lindgren: Mmmhmmm. How many [sides]?
Alayna: Four. Lindgren: Mmmhmmm. [Victoria working. Sophia consulting documentation to help Victoria.]
Lindgren: So, right now. Let's just press this, again, at the top there.
[Victoria working on computer.] [Sophia still reading docs.] [Brooks discussing principles of squares at different table.]
Lindgren to Alayna: Hey, "dauby" [the turtle], look up! Try again.
[Victoria also reading docs now.] Lindgren: There. Now, once more.
Lindgren to Alayna: Huh. Do it again. [Victoria & Sophia working on computers.]
Lindgren to Alayna: See, there's one way to make a square, now here's something interesting if you think about it.
Lindgren to Alayna: How's this... This is the same thing you have here, pretty much right? Alayna: Mmhmm.
Lindgren to Alayna: You just have "RIGHT" [turtle command] first, right?
Lindgren to Alayna: Instead of "FORWARD" [turtle command] first.
Lindgren to Alayna: But what do you think this "REPEAT" block does?
Alayna: Ummmm. Lindgren: What does "REPEAT" mean?
Alayna: Do it over again. Lindgren: And how many times does it tell it to do it over again?
Alayna: Four. Lindgren: Four times. How many sides are there on a square?
Alayna: Four.
Lindgren: So that's why it [the turtle script] says, "Hey, Ok. Go FORWARD by 100."
Lindgren: Turn 90 degrees! [makes car screeching noise.]
Lindgren: Now, repeat that. You know. [Victoria and Sophia still engaged in their own activities.]
Lindgren: Actually, no. It will go up 100, then it will turn.
Lindgren: And then it [the program] goes back up to the top block, again, to repeat.
Lindgren: Ok. Now. it did it once [run the script], so it's going to do it again.
Lindgren: Straight. Turn. Then, it's going to do it again.
Lindgren: Straight. Turn. Then, it's going to do it one more time and make it 4, right?
Lindgren: See how it does that? Alayna: Mmmhmm.
Lindgren: So you can use a "REPEAT" block to do things over and over.
Lindgren: Kinda like a loop, right? Over and over and over again.
Lindgren: So, see. [Referencing the Turtle challenge document.] Why don't you build this.
Lindgren: Try to find that "START" button and that "REPEAT" block.
Lindgren: And see if you can draw a square, using the "REPEAT" block.
Alayna: Ok. Lindgren: Cool.