Split (1)

train · 116k rows

role stringclasses 2 values	content stringlengths 0 2.1k	session_id int64 10 21.7k	sequence_id int64 0 2.38k	annotations listlengths 0 8
student	well we proved angle ABD and angle DCA	4,385	602	[]
volunteer	those angles, angles are 90 degrees. So,	4,385	603	[]
volunteer	um	4,385	604	[]
volunteer	yeah, we proved ABD and DCA are equal.	4,385	605	[]
volunteer	are congruent, here, we have proved that, uh, but we are thinking about the reasoning we should give there.	4,385	606	[]
volunteer	because substitution is not working there, but other reasoning can be used?	4,385	607	[]
student	But we need to prove how angle A and angle D work to be proved	4,385	608	[]
student	the first thing I said is already prved	4,385	609	[]
volunteer	How Uncle A and Uncle D work to be proved.	4,385	610	[]
student	was given	4,385	611	[]
volunteer	Um	4,385	612	[]
student	something with cut by transversal	4,385	613	[]
volunteer	Yeah, we are doing the same sole A and angle D basically means angle BAD and angle ADC. They are one and the same thing.	4,385	614	[]
volunteer	So I think you get this message when you write that angle BAD equals angle ADC and new substitution as the reason, so it says that no, it's wrong. Uh, so we are thinking about the correct reason we should give the. Uh, what are the list of reasons do we have	4,385	615	[]
volunteer	over here?	4,385	616	[]
volunteer	For the statement that I BAD is equal to an ADC.	4,385	617	[]
student	these	4,385	618	[]
volunteer	The these are the same thing. Uh, what was transitive property again. No, I'm sorry, I forgot that.	4,385	619	[]
volunteer	transitive property.	4,385	620	[]
student	like if a isqual	4,385	621	[]
student	if a is equal to e and e is equal to d then a is equal to d	4,385	622	[]
volunteer	OK, then, yeah, OK, if, yeah, transitive property is basically that	4,385	623	[]
volunteer	uh A equals E and E equals d, then A equals d. This is exactly what we are trying to say. We are saying that our angle A is equals 90 degree, and then we are saying that angle D is equals is also equal to 90 degrees, and from this we are implying that angle A should be equal to our anger D So yeah, use transitive prope...	4,385	624	[]
volunteer	Yeah, because when I was, when I was looking here for the reasonings, there was nothing like transitive property. So I was thinking what could be the possible reasoning for this.	4,385	625	[]
volunteer	Now try transitive reasoning for that.	4,385	626	[]
student	still no	4,385	627	[]
volunteer	Still no? Oh my God.	4,385	628	[]
volunteer	Um	4,385	629	[]
volunteer	it should work now	4,385	630	[]
student	its not working yet	4,385	631	[]
volunteer	Mm.	4,385	632	[]
volunteer	What notice does it show now?	4,385	633	[]
student	it shows this	4,385	634	[]
volunteer	No, you tru use transitive property.	4,385	635	[]
volunteer	I told you that no, don't you substitution use transitive property.	4,385	636	[]
student	I did	4,385	637	[]
student	that's what it gives	4,385	638	[]
volunteer	to use substitution for congruent, but we are not using substitution. Why does it say substitution then?	4,385	639	[]
volunteer	This is strange	4,385	640	[]
volunteer	Uh, now try using this all right angles are congruent.	4,385	641	[]
volunteer	because now we have proved that both of those are right angles, so maybe it will accept this now.	4,385	642	[]
student	yes it worked!	4,385	643	[]
volunteer	OK, yeah. Good.	4,385	644	[]
volunteer	So, OK, so let's think why the transitive property thing didn't work.	4,385	645	[]
volunteer	So	4,385	646	[]
volunteer	so it's basically A equals A E equals t, then we say that a should be equal to D We were saying that angle A equals 90 degrees. Then we said angle D is equals 90 degree. And then we were trying to imply that angle A should be equal to angle angle D	4,385	647	[]
volunteer	But instead our reasoning uh should have been like 90 degree equals angle.	4,385	648	[]
volunteer	So this equals this and this again equals this, then we can prove that anguanggu D uh, but, but somehow that should also have, should have worked, but it's fine if it doesn't. So, yeah, I mean, it's OK.	4,385	649	[]
student	yes	4,385	650	[]
volunteer	So all right angles are con. So do you understand why it was not working previously because we just assumed that they automatically knew that if it's given that both of these, uh, sides are perpendicular, then the angle should be 90 degrees. So we were wrong with that assumption. We first had to tell them that these an...	4,385	651	[]
volunteer	uh statement that perpendicular lines form 9 right angles, and then we had to say that all right hungles are congruented. So is the whole problem clear now?	4,385	652	[]
volunteer	Like, why, why was it not working previously?	4,385	653	[]
student	yes but its still not finished, like I understand so far	4,385	654	[]
volunteer	Yeah, yeah, yeah	4,385	655	[]
volunteer	Uh, yeah, we, it's not finished, but we have written the three statements now. We now, we just now need to write that congruent triangle statement. So just uh write this statement and for the reason, what do you think should be the reason? We have 5 congruency criteria ESA	4,385	656	[]
volunteer	SSS	4,385	657	[]
volunteer	S uh SAS AAS.	4,385	658	[]
volunteer	A is	4,385	659	[]
volunteer	So we have this angle.	4,385	660	[]
volunteer	here. We have side and we have angle. So it should be AAS.	4,385	661	[]
volunteer	uh try to protect this as the last statement, and I think it should work now.	4,385	662	[]
student	Yes it worked!	4,385	663	[]
volunteer	OK, yeah, great. Finally, finally.	4,385	664	[]
volunteer	So do you want me to summarize the whole problem again? I can do that.	4,385	665	[]
student	yes please! so I can take notes!	4,385	666	[]
volunteer	Uh, OK. So just give me a minute.	4,385	667	[]
volunteer	We knew that	4,385	668	[]
volunteer	um, OK.	4,385	669	[]
volunteer	So if you wanna take notes	4,385	670	[]
volunteer	uh, OK, let me just clear this thing.	4,385	671	[]
volunteer	Uh, these are not important.	4,385	672	[]
volunteer	OK	4,385	673	[]
volunteer	So yeah, I'll, I'll write the whole	4,385	674	[]
volunteer	whole solution for you again.	4,385	675	[]
volunteer	So the first uh statement we used here was that angle BAD is equal to 90 degree.	4,385	676	[]
volunteer	Then we use that angle A, D, C is equal to 90-degree.	4,385	677	[]
volunteer	Uh, and the reasoning for both of these was that uh	4,385	678	[]
volunteer	perpendicular lines.	4,385	679	[]
volunteer	make	4,385	680	[]
volunteer	right angle.	4,385	681	[]
volunteer	This was our first statement	4,385	682	[]
volunteer	Then our second statement was that AD is	4,385	683	[]
volunteer	congruent to AD.	4,385	684	[]
volunteer	because of the reflexive property.	4,385	685	[]
volunteer	Then we said that	4,385	686	[]
volunteer	angle A, B, D equals	4,385	687	[]
volunteer	angle	4,385	688	[]
volunteer	ACD.	4,385	689	[]
volunteer	uh because this is given.	4,385	690	[]
volunteer	And then from these two statements, we said that	4,385	691	[]
volunteer	Angle BAD, AD equals angle ADC because	4,385	692	[]
volunteer	all right angles are	4,385	693	[]
volunteer	congruent	4,385	694	[]
volunteer	Uh, just ask me if my handwriting is not very clear.	4,385	695	[]
volunteer	It's, it's a bit busy, I know.	4,385	696	[]
volunteer	Uh just ask me if it, if anything is not clear. And then from this we said that by	4,385	697	[]
volunteer	AAS	4,385	698	[]
volunteer	triangle	4,385	699	[]
volunteer	B A D	4,385	700	[]
volunteer	is congruent to Trale CDA.	4,385	701	[]

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