Datasets:
NationalTutoringObservatory
/
MathEd-PII

Dataset card Data Studio Files
xet
 Community
1
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
ok
15,914
114
[]
volunteer
Next, we do the same for deck 2. Do you see the uploaded picture?
15,914
115
[]
student
yes
15,914
116
[]
volunteer
For example, there's 1 elephant on the left, so 1(24), etc.
15,914
117
[]
student
yes
15,914
118
[]
volunteer
Now let's do the math and simplify.
15,914
119
[]
volunteer
4(12) = ?
15,914
120
[]
student
48
15,914
121
[]
volunteer
Let's subtract 24 from both sides.
15,914
122
[]
student
2k + 4s = 24
15,914
123
[]
volunteer
Right. Now divide both sides by 2 to simplify.
15,914
124
[]
student
wouldn't it be 12 = k + 4s?
15,914
125
[]
student
ohhhh nevermind
15,914
126
[]
student
i see
15,914
127
[]
student
4/2 is 2 lol
15,914
128
[]
volunteer
OK. We now have our Equation 2.
15,914
129
[]
student
yes
15,914
130
[]
volunteer
We're going to solve Equations 1 and 2 to get the values of K and S.
15,914
131
[]
student
ok
15,914
132
[]
volunteer
To do that, we'll take Equation 1 and subtract Equation 2.
15,914
133
[]
volunteer
So on the left, we get 6-12 = ?
15,914
134
[]
student
-6
15,914
135
[]
volunteer
Right.
15,914
136
[]
volunteer
On the right, we get K-K, so the K cancels out.
15,914
137
[]
volunteer
Finally, we get -6 = -3S. Can you solve for S = ?
15,914
138
[]
student
2 = 1?
15,914
139
[]
student
i divided both sides by -3
15,914
140
[]
volunteer
Yes. -6 = -3S.
15,914
141
[]
volunteer
Divide both sides by -3, you get -6/(-3) = -3S/(-3) => 2 = S.
15,914
142
[]
student
shouldn't s = 1?
15,914
143
[]
volunteer
6/3 = ?
15,914
144
[]
student
ohhhhh
15,914
145
[]
student
i forgot the 3 cancels out
15,914
146
[]
volunteer
Yes. So 1 seal weighs S = 2, correct?
15,914
147
[]
student
yes
15,914
148
[]
volunteer
Now we can balance Deck 3 and find the number of seals. Do you see the picture?
15,914
149
[]
student
yes
15,914
150
[]
volunteer
There are 6 zebras on the right, each weighing "4". So 6(4).
15,914
151
[]
volunteer
There's 1 bear on the right = 1(12). Let "X" be the number of seals, each weighing 2, so X(2).
15,914
152
[]
student
ok
15,914
153
[]
volunteer
We don't know "X" yet. That's what we want to find out.
15,914
154
[]
student
yes
15,914
155
[]
volunteer
Let's do the math.
15,914
156
[]
volunteer
6(4)=?
15,914
157
[]
student
24
15,914
158
[]
volunteer
We can subtract 12 from both sides to simplify.
15,914
159
[]
volunteer
Can you find X = ?
15,914
160
[]
student
6 = x !!
15,914
161
[]
volunteer
Exactly. It takes 6 seals to balance deck 3. I'll show you the final picture.
15,914
162
[]
volunteer
Do you see it?
15,914
163
[]
student
yes!
15,914
164
[]
volunteer
That completes the solution, and I'm running out of time. Any quick question before I go?
15,914
165
[]
student
Thank you so much !!!
15,914
166
[]
student
How do I explain to my teacher that i know the answer
15,914
167
[]
student
She'll think i used ai
15,914
168
[]
volunteer
You can explain the steps that were used to solve the problem.
15,914
169
[]
volunteer
We started by assuming 1 Elephant weighs "24". Using that, we found Equations 1 and 2. And finally we solved for S = 2. And we need 6 seals to balance Deck 3.
15,914
170
[]
student
Okayy. Thank you! Were you my tutor last time?
15,914
171
[]
student
Nevermind! Thank you! Have a nice day!
15,914
172
[]
volunteer
Bye.
15,914
173
[]
volunteer
Hi
15,916
0
[]
student
Hi there
15,916
1
[]
student
I am working on a problem for calculus. I am stuck however on simplifing.
15,916
2
[]
student
This is a quotient problem.
15,916
3
[]
volunteer
The question asks the derivative of f(x) at x=2 right?
15,916
4
[]
student
I see how to get u'v-v'u/v^2
15,916
5
[]
student
right
15,916
6
[]
student
I don't see how to get from the first step (setting up the equation) to the the simplified form (x+1)-(x+1)
15,916
7
[]
student
When I do it I get (1/x+1)-1/x+1)
15,916
8
[]
volunteer
ok i'll write down the steps, you do understand how they got the derivative right?
15,916
9
[]
student
yes
15,916
10
[]
volunteer
ok we'll start there
15,916
11
[]
volunteer
now we just need to look at the numerator for now
15,916
12
[]
student
ok
15,916
13
[]
student
ok
15,916
14
[]
volunteer
do you understand this step?
15,916
15
[]
student
yes.
15,916
16
[]
volunteer
so now we're done with the simplification
15,916
17
[]
volunteer
the question asks the value of this at x=2
15,916
18
[]
student
right.
15,916
19
[]
volunteer
so just substitute 2 in this
15,916
20
[]
volunteer
and that's your answer
15,916
21
[]
volunteer
any confusions?
15,916
22
[]
student
I was making this way harder than it is.
15,916
23
[]
volunteer
i see, you understand it now right?
15,916
24
[]
student
yes. thank you
15,916
25
[]
volunteer
ok great
15,916
26
[]
volunteer
hey Sophia! how can i help?
15,979
0
[ { "pii_type": "PERSON", "surrogate": "Sophia", "start": 4, "end": 10 } ]
student
I need help in that
15,979
1
[]
volunteer
sure!
15,979
2
[]
student
Yay!
15,979
3
[]
volunteer
ok so lets start with number 1
15,979
4
[]
volunteer
5+ root 19
15,979
5
[]
volunteer
what do u think is the answer?
15,979
6
[]
volunteer
wait sry before that, how much do u know abt adding rational and irrational numbers
15,979
7
[]
student
Can I use my calculator
15,979
8
[]
volunteer
you dont need to for this
15,979
9
[]
student
I’m not that good at it
15,979
10
[]
student
Oh okay okay
15,979
11
[]
volunteer
its not asking u for a number, just whether its rational or irrational
15,979
12
[]