941103-VT2

Dan & Don, Project #2, Construction Day # 1

(11:15) (Dan sketching and Don watching)

Don: Hey Dan, maybe like= (11:16)

Roth: Glue gun is in the back.

Dan: Here, here, here and here okay with pulleys on them.

Don: Yeah.

Dan: Hook the pulley on, hook the weight on here. Hit this make a thing right here, and stop right here and the truck will be right here.

M: Do you guys have your design plan yet?

Don: Yeah, we’re just thinking about it, like we know what it is. (11:17)

Dan: Into the back of the truck.

Don: We need to make it

Dan: The truck will be up here and it will be easier because we can make this ramp higher.

Don: Well, how much wood do we have? What should we get started on today? (they both get up to collect their supplies)

Dan: Okay. Don.

Don: See this is what I brought (referring to the large block of wood they later use as a support)

Dan: I’ll cut it here

Don: Wait I’ll show you my idea. (11:18)

Dan: Don, Don, Don put this back. This will be on here like this. ??? and the pulleys across right?

Don: I’m gonna get, I’m gonna get (Dan gets up to get more supplies)

Dan: See Don like these and cut in pieces.

Don: Where did you get those?

Dan: Cut these in half, cut these here and here and put these across (11:19)

Don: Well, I’ll just show you what I was thinking. Remember that slide? We could attach a string through it, okay, here’s our pulleys, okay? The pulleys and then there’s a string.

Dan: Okay Don we could use like an elastic band sort of and pull it and it goes wooooo

Don: Okay yeah it is 100.

Dan: We could make it like a clothesline.

??: Do you guys have any extra wood?

Don: Nope. Do you have any? We need all the wood. We need all our wood.

Roth: (speaking to Laura, Jennifer and Devin who are sitting right behind Dan and Don) As much as you want. It has to be 100. 100 or more. See when you calculate the advantage. (11:20)

Don: OK, Dan draw what you were thinking? (Dan draws on Don’s paper) Draw on this one then you have more room.

Roth: When you draw your machine see if it gives you an advantage.

Dan: Okay there’s like ??? comes down here and goes across and pulleys.

Don: How many are we going to have?

Dan: We can get pulleys from ?? we can have put the garage here and like when the truck comes it pulls it up here, (11:21) drops it off here, and then string right here.

Don: Couldn’t we hook it on?

Dan: Yeah, with a paper clip (gestures to indicate folding of paper clip) hook it on, it slides down here and it drops off.

Don: We can take it back.

Dan: Just drops it off.

Don: We can take it back.

Dan: Like you know when you do a clothesline you do it like that or we can just move this along here and then turn around.

Don: And the truck=

Sylvia: Guys, guys can I have some wood?

D&D: No, we need all the wood we can get, sorry.

Don: Dan, let’s just do this. (Dan goes to talk to Adrian) (11:22) Dan, Dan, let’s do this okay.

Dan: Okay.

Don: Where did that pencil go? Did you steal that pencil.

Dan: No, I put it back in here.

Don: Okay so if we did this.

Dan: We could have this and then like that.

Don: That’s a bit too high. No, cut it. What we need is like. Okay, hold on. We’re going to use the Tonka truck right? (Don gets up to get his truck) Hey Dan.

Dan: What?

Don: We’re going to use this right?

Dan: Yeah, but you don’t need it right now.

Don: No, but I need to see something. We might need a bigger board right?

Dan: But we can have, I’ve got a little one.

Don: Oh you do? All right. (11:23) (Don returns the truck and Dan turns around to talk with Jennifer, playing with her miniature lever) Dan. Dan, Dan.

Laura: Do you have any nails we could use?

Dan: No.

Don: So Dan, okay. Let’s saw these okay. (to an unseen student behind him) Don’t it hurts. Well it does. Okay, wait wait wait. (Dan approximating measure of stick with his hands, Don grabs his ruler and takes over)

Don: Oh Dan, use a ruler okay? (Dan bends down to find his carpenter’s pencil)

Leanne: Do you have a screwdriver?

Don: NO.

Leanne: Yeah, yeah, yeah. Please.

Chris: Can we have a hammer? (Don hands Leanne the screwdriver)

Don: Okay? No wait, wait wait. (11:24) Okay, how big do we want to make them?

Dan: Well, this is, I just want to see.

Don: Not 30.

Dan: I know, I just want to see how many. That’s 3 feet.

Laura: Can I borrow a hammer?

Dan: I only have one hammer and I need it pretty soon.

Don: How about 20. (Dan measures and marks the wood) I get to cut. (11:25). We’ll go outside and cut okay. Okay, Dan get your saw. (Dan still marking where to cut on the wood)

Devin: Hey Dan do you have your drill?

Dan: Yeah, but you can’t use it.

Don: Okay to the Batmobile. Let’s go outside and cut it.

Dan: We still need to do this one.

Don: Oh Dan. We’ll do it after okay. (Dan finishes marking)

Dan: No we need to do it.

Don: Okay. Get your saw.

Dan: Hold on. (11:26) (Dan and Don moving across the classroom to go saw the wood)

Don: Can we just go outside?

Roth: To do what?

Don: Can we just go outside to saw the wood?

Roth: Okay, go ahead.

??: They want to fool around.

Roth: What are you guys working on?

Dan: A ramp so it’s like a clothesline pulley. Ramp with pulleys on it.

Roth: Uh-huh. You have a ramp and pulleys.

Dan: Yeah. So you drop it and it comes down on pulleys. (Don holds the wood and Dan saws)

Roth: I see you have some experience in cutting.

Dan: Yeah.

Roth: Oh good (Don stands on the wood) (11:27) (Dan cuts 2 pieces of wood)

Don: Watch your fingers.

Dan: I know.

M: So you’re making three equal pieces is that what you’re doing? (11:28)

Don: Yeah. Six.

M: You have the other piece too.

Dan: You want to do this one? (Dan passes the saw on to Don and he stands on the wood to hold it steady).

Don: I’m left handed.

Maryam: Okay outside. Go over here and stand on it. (seem to be imitating Dan and Don’s actions) Jess. (11:29) Let’s go inside.

Don: Is that the line?

Dan: Yeah, the line is right there.

Don: Okay. (cuts it, but leaves a bit of extra wood sticking out)

Dan: Cut this one on the line there. (11:30) Here, you take this.

(they go back to their desk space) (11:31)

Dan: Okay, Don this will be the one that every (section missed as the camera was plugged back in)

Don: Wait, wait wait. I got an idea.

Dan: Okay put the nails in.

Don: I got nails. (he starts digging through his coffee tin of supplies) A drill?

Dan: Yeah, just to get it started.

Don: But you got to drill it on the other side.

Dan: Yeah I know. (11:32)

Don: This side is better, let’s use this side. (Dan setting up the drill). Dan. Go.

Dan: Just sec. (Dan gets ready to drill)

Don: Wait, wait, wait. That will be there. Okay. (Dan drills a hold where Don indicated) (11:33)

Chris: But those science teachers they’re just the coolest.

Don: (laughing)

Roth: Everything is going okay here.

D&D: Yeah.

??: Dan I do not like you.

??: That’s why you’re blushing and blushing.

Dan: Don, can you hold it right there. Can you hold it.

Don: How are we going to do this? We could drill another hole. (11:34)

Dan: Hey do you have the glue gun?

Don: Yeah. We have to let it warm up though. (Dan drills another hole) I got some more glue too.

Dan: Drilling the other hole. (starts drilling)

Don: It’s over too much. You gotta move it in. Don’t put it all the way through. Dan, don’t drill it through all the way, okay. (11:35). (Dan measures and marks his drill spot and begins drilling) Dan, don’t drill it all the way. Don’t, don’t. Not too much, then we can nail it in. Dan, okay take it out. (Dan only drills part way through) Okay Dan. I’ll get this going now. (to the observer, referring to the researcher’s power bar where the video camera is plugged) Is it okay if I plug this in there?

Jessica: Do you have any extra wood we could use?

Dan: No. (11:36)

Don: Did you drill that one all the way through.

Dan: No.

Don: Okay good.

Maryam: Does anybody have any extra wood?

Don: No. (11:37). Whoa, Dan it’s not ready yet.

Dan: Yes it is. I just pushed it in all that way.

Don: No it isn’t. You’ve gotta let it warm up for about 10 minutes or it gets all stringy. (Dan playing with glue gun)

M: What happens if it’s not ready?

Don: It gets all stringy.

M: It’s not all melted.

Don: Yeah.

Dan: Don we need a new glue stick. (11:38) (Don gets another glue stick and starts pushing it in.)

Don: Just push that in there. (hands him a glue stick)

Dan: Hey Don, where’s the board?

Don: I’m getting it, just sec. (Dan sticks the board on and holds it) Put it there.

M: So you’re gluing that opposite to where you drilled the hole?

Don: Yeah, so it will stay.

M: So you can get it started.

Don: Does that hurt? (11:39). Does it?

Dan: No.

Leanne: Here Dan

Don: Thanks.

(Dan starts nailing board in, but pushes support out)

Dan: Oh way to go Don. (11:40)

Don: Well, at least we got it started.

Dan: Hold it in.

Don: I’m trying. Hit the bottom. (Dan knocks the support back up and pushing the nail back out) Here give me the hammer. (Don tries to re-hammer nail in and Dan holds it)

M: Is there any way you can do it where the support is under here?

Don: But then. (they set it up on top of the desk)

M: That’s a good idea.

Don: Did it go through? Okay. Let’s do the other one now.

Dan: Oh Don.

Don: Is that hot? (11:41) Oh Dan wait, don’t.

M: Too late?

Don: Well, this hole isn’t drilled all the way through.

(Dan sticks board on)

Don: This hole isn’t all the way through.

Dan: I know.

Don: Does that hurt?

Dan: No.

Don: Want to turn it the other way and push on it?

Dan: Okay. (11:42) Okay I get to nail this one in. (Dan nails while Don holds.) (11:43)

Don: Did it got through? Okay, hold on.

Dan: How long does this have to be?

Don: Wait he has that tape. (11:43) (Don goes to get tape measure and they measure together) 29 and a half, so. Here hold that. That’s 6 foot. (11:44). Okay. What’s 183 minus, 183 minus 29 and a half. (Dan pulls out his science book) Just do it. (Dan writes down the calculation and starts working it out).

M: What’s that you’re calculating?

Don: Just to see how much board we need.

Dan: Minus what?

Don: 29 and a half. (11:45)

Dan: 153 and a half.

Don: Okay, we need 153 and a half. (gets out tape measure to see how long this is). Whoops, I messed up. 72. I used centimeters instead of inches. Okay, 72 minus 29 and a half (Dan opens his book again to perform the calculation)

M: It’s supposed to be 200 centimeters.

Don: Yeah 200 centimeters.

M: Dr. Roth said about 6 feet which is the same as 200 centimeters.

Don: Yeah. (11:46)

Dan: 43 and a half. Don, 43 and a half.

Don: Do we have science tomorrow?

M: No.

Don: No.

M: Not until Monday.

Don: Till Monday.

M: You have Monday to work on it and then you’ll be presenting Wednesday and Thursday.

Don: Next week?

M: So Monday you have the same time to work on it from recess until lunch and then you present Wednesday and Thursday.

Don: Are you busy Tuesday, Dan?

Dan: Tuesday? Yeah, soccer.

Don: What about Monday.

Dan: I have soccer.

M: What about tomorrow or on the weekend? (11:47)

Don: Yeah we could do it on the weekend.

Dan: Yeah, cause my Dad could help us. I’ve got like toothpicks so we could do like toothpicks with pulleys attached.

Don: Maybe we should get those dowels instead. Yeah remember.

(they go to get supplies from the back of the room. Dan comes back with popsicle sticks.) (11:48)

Don: Dan, what we should do is a 25 gram weight and then just get a piece of string and right now just see right now if it is a mechanical advantage. (Dan starts gluing popsicle sticks) Dan, if you need more glue it’s on my desk. (11:49) (Don goes to front of room to try using scale to weight piece of wood) Dan, Dan, I just want to do this to try it. Hang on (adds another glue stick) Hey Dan. Whoa!

Dan: (he glues popsicle sticks on) (11:50) (Dan wipes excess glue around to help attach popsicle sticks, Don glues popsicle sticks on another support).

Don: Dan, let’s just do this to test it. I just want to test it. Dan, it’s just a test. Just get some string. (he unwraps some string)

M: So you’re going to test it?

Don: Yeah, to see if it has a mechanical advantage. (11:51)

M: That’s a good idea.

Don: This? (hands him the piece of wood he measured with the scale).

Dan: I’m going to go get the scale.

Don: I don’t know what it was exactly. (he untangles a shoe lace, checks the strength of the glue and ties the shoe lace around the popsicle sticks)

Dan: It’s 100.

Don: Is it? (11:52)

Dan: Exactly (Dan ties a hook to the wooden block while Don adjusts the shoelace)

Don: We shouldn’t use shoelaces.

Dan: Well we’re just measuring it. (Dan attaches the wooden block to the shoelace and it stretches down to the ground)

Don: Yeah. Okay now we need the scale again. Move that up.

Dan: Well there’s going to be pulleys.

Don: It can’t be dragging on the ground.

Dan: I know we’re just using it to see=

Don: I know we need the scale so we can like pull it (11:53) (Don goes to get the scale)

Dan: Well just to see.

M: So is this what the whole thing is going to be like just longer?

Dan: Yeah.

Don: Just pull it like that. No wait you gotta move it down. (they attach the scale and try moving the block of wood with their machine) (11:54) There’s a knot in it.

Dan: 350 or so.

Don: Wait just try it again. You ran out of the. Okay when you try to pull how much is it? Wait okay now stop. (11:55) Okay it’s 300 Dan.

Dan: It’s 300.

Don: Okay. Now, um, Dan.

(Don goes back to their old machine)

Don: (to the observer) Can we take these pulleys off?

M: Well, we were going to show those for parent night so we would have them, but you can use them.

??: Can we use the screwdriver? Dan, Dan (whistles) Can I see this for a second I’m not going to use it. (11:56) Dan, Dan.

(they both go back and look at Jennifer’s project)

Don: Dan, Dan. Dan, Dan let’s get back to this okay?

??: Here Dan, we didn’t need it. (11:57)

(Don puts glue on top of the popsicle sticks, Dan smoothing it out with his fingers)

Don: You’re going to burn yourself. (Dan uses a nail to smooth the glue out) Oh you know what you do, you add glue like this.

Devin: Hey, Dan can I use your drill?

Dan: What?

Devin: For drilling holes.

Dan: In what?

Devin: Wood.

Don: Okay. (11:58)

??: Can I borrow your hammer? (Dan hands the hammer to unseen student)

Don: I got an idea. Maybe we should put like double. I’ll get the glue gun. I’ll glue you hold. (Dan starts gluing despite Don’s intent. He adds another glue stick) What are you doing you’re missing the hole? (11:59) Quick, Dan. (Dan attaches second layer of popsicle sticks) Whoa! (glue dripping) I got an idea, we can melt the glue (12:00). (Don gets a chunk of hardened glue that had dripped earlier and sticks it onto the other popsicle sticks. Then he adds some more glue from the gun.)

Scott: Hey Dan can I use your screwdriver for a minute?

Don: Yeah, but don’t be long. Dan. Okay Dan, hold these. (Don removes the chunk of glue he had tried melting and adds new glue. Dan sticks the popsicle sticks on using a nail to smooth it around) (12:01).

Scott: Thanks. (12:02)

Dan: You’re welcome.

Don: Oh Dan, I thought of what might be good. Put glue in here (along the length of the popsicle sticks). Wait, wait, wait. Dan. Just shove it in the end. No not there, underneath. (Don holds the now partially attached popsicle sticks apart while Dan adds more glue) (12:03) Don’t. Okay now put the other stick in. AHHH! (shaking hand after burning it on the hot glue) Come on Dan, don’t do that one yet. (Don trying to push the two layers of popsicle sticks together with a nail)

(12:04) (Dan tries to separate the layers of popsicle sticks and glue them himself, but Don joins him to hold the sticks apart for him)

Don: Okay, now do the other side. Hang on.

Dan: Hang on. (Dan uses a clothes pin to hold the two layers together).

M: That’s a good idea.

Don: Good idea. Go like that, we need one over there. (12:05) Where’s your drill?

Dan: Devin’s using it. (12:06)

Don: There we go. Do you have like=

Dan: No we need string.

Don: I have string.

Dan: Yeah, that’s good.

Roth: Okay can we um.

Don: Oh no. Wait, wait. How much is it Dan?

Roth: Okay. (12:07)

Don: Dan.

Roth: Stop everyone.

Don: Dan.

Roth: Stop everyone. Can we? We have to clean up now. Please clean up as quickly as possible. Clean up as quickly as possible. Put the stuff that you don’t need in your boxes=

Don: Dan.

Dan: No we don’t need it. That’s to hold the pulley.

Don: Dan, we’ll do that after.

Roth: Please clean up. Clean up here, can you please?

Don: Dan, Dan, don’t do that. (Dan starts to glue something) (12:08)

Roth: Um, Daniel, please clean up. Jenni. Chris in your seat please.

Don: Dan.

Roth: Please, clean up. (Dan continues gluing) Get your stuff together.

Devin: This works really good.

Roth: Don and Devin can you guys please clean up. Laura and Devin. Shamir your stuff please. You want to go to lunch and before lunch we gotta finish. (12:09) Don and Dan you gotta clean up.

Don: Yep. (they start cleaning up)