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
volunteer
Yeah, of course
16,254
87
[]
volunteer
Hi!
16,221
0
[]
student
Hello
16,221
1
[]
volunteer
How can I help you today?
16,221
2
[]
student
just 16 and 17 today
16,221
3
[]
volunteer
Ok let me see
16,221
4
[]
student
I need to learn how to make equations today thats my main goal
16,221
5
[]
volunteer
Yeah so the key here is that you start with setting up letters
16,221
6
[]
volunteer
So in the last sentence you see how the question says "How many bags of chips 'b'"?
16,221
7
[]
student
Yes
16,221
8
[]
volunteer
That's an example. You assign a random letter to things you're not sure about
16,221
9
[]
volunteer
What else do we not know? In question 16
16,221
10
[]
student
5 sandwiches and 6$ each and spent 42
16,221
11
[]
volunteer
So what's the value that we don't know yet?
16,221
12
[]
volunteer
Oh wait
16,221
13
[]
volunteer
Sorry yeah we can just solve it from there
16,221
14
[]
student
Ok
16,221
15
[]
volunteer
So $6 for each sandwich
16,221
16
[]
volunteer
If we didn't buy any bags of chips, how much would 5 sandwiches cost?
16,221
17
[]
student
5x6 right?
16,221
18
[]
volunteer
Yep
16,221
19
[]
student
so 30
16,221
20
[]
volunteer
You got it
16,221
21
[]
volunteer
But how much did we actually spend? based on the question
16,221
22
[]
student
42
16,221
23
[]
volunteer
Right so keep that number in mind for now
16,221
24
[]
volunteer
And now let's see how much each bag of chips cost
16,221
25
[]
volunteer
costs
16,221
26
[]
volunteer
Can you guess based on the sentence I highlighted?
16,221
27
[]
student
each sanwich cost 3x as much as bag of chips
16,221
28
[]
volunteer
Yes and we know that each sandwich costs $6
16,221
29
[]
student
Yes.
16,221
30
[]
student
18 per chip
16,221
31
[]
volunteer
Almost there
16,221
32
[]
volunteer
But it says each sandwich costs 3x as much as bag of chips, not the other way around
16,221
33
[]
volunteer
I think you came to 18 by doing 6x3
16,221
34
[]
volunteer
But actually what we need to do is 6/3
16,221
35
[]
student
three times? as in mutiplication?
16,221
36
[]
volunteer
(each chip) x 3 = (each sandwich)
16,221
37
[]
volunteer
This is what the question was saying
16,221
38
[]
volunteer
And we know that (each sandwich) = 6
16,221
39
[]
volunteer
Which gives us (each chip) x 3 = 6
16,221
40
[]
volunteer
That's why I did 6/3 to get (each chip)
16,221
41
[]
student
sorry just clarify a bit more
16,221
42
[]
student
each sandwich costs 3 times a much as a chip
16,221
43
[]
student
one sandiwch cost 6, and three times as much
16,221
44
[]
volunteer
Take the word 'costs' as an equal sign
16,221
45
[]
student
so 6x3, I know your right just i dont understand
16,221
46
[]
volunteer
and 'as much as' as a multiplication sign
16,221
47
[]
volunteer
each sandwich "cost" three times "as much as" a bag of chips
16,221
48
[]
volunteer
If we do that conversion, it turns into
16,221
49
[]
volunteer
each sandwich = 3 x a bag of chips
16,221
50
[]
student
ok so 6 divided by 3?
16,221
51
[]
volunteer
Exactly
16,221
52
[]
volunteer
So a bag of chips costs?
16,221
53
[]
student
2
16,221
54
[]
volunteer
You got it
16,221
55
[]
volunteer
So let's go back to the last sentence of the question
16,221
56
[]
volunteer
You said it would cost 30 if we only get 6 sandwiches right?
16,221
57
[]
volunteer
But what we actually spent was 42
16,221
58
[]
volunteer
which means bags of chips cost 42-30 = 12 dollars
16,221
59
[]
volunteer
Do you get this equation? Or I can also elaborate
16,221
60
[]
student
whys that there
16,221
61
[]
volunteer
each sandwich costs 6 right
16,221
62
[]
volunteer
and we bought 5 sandwiches according to the question
16,221
63
[]
student
yes
16,221
64
[]
student
ok and 2xb?
16,221
65
[]
volunteer
Each bag of chips costs how much?
16,221
66
[]
student
2
16,221
67
[]
volunteer
And for "b," let's check the last sentence one more time
16,221
68
[]
volunteer
How many bags of chip b did she buy?
16,221
69
[]
volunteer
So b is the number of bags of chips
16,221
70
[]
student
b is the unkown
16,221
71
[]
volunteer
Yep you got it
16,221
72
[]
student
is there a way to write this without using mutiplication signs
16,221
73
[]
volunteer
You can just say 2b instead of 2xb
16,221
74
[]
volunteer
Caught up so far?
16,221
75
[]
student
yes
16,221
76
[]
volunteer
Now let's solve this equation
16,221
77
[]
volunteer
Do you wanna give it a try?
16,221
78
[]
student
yes
16,221
79
[]
volunteer
Yup go ahead
16,221
80
[]
volunteer
Correct
16,221
81
[]
volunteer
So answer is 6
16,221
82
[]
volunteer
Got it? Let me know if you have any questions about number 16
16,221
83
[]
volunteer
Or we can move onto question 17
16,221
84
[]
student
move on
16,221
85
[]
volunteer
Ok can I erase everything on the board?
16,221
86
[]
student
yes
16,221
87
[]
volunteer
Number 17 - the most important concept here is speed
16,221
88
[]
volunteer
speed is simply things like mph or miles per minute those kinds of things
16,221
89
[]
student
this is the hardest one
16,221
90
[]
volunteer
Well I'm sure you can easily solve it once you get the hang of it
16,221
91
[]
volunteer
Let's read the first two sentences
16,221
92
[]
volunteer
So it took Leo 30minutes to ride 3.2 mi right?
16,221
93
[ { "pii_type": "PERSON", "surrogate": "Leo", "start": 11, "end": 14 } ]
student
yes
16,221
94
[]
volunteer
so how many miles per minute?
16,221
95
[]
student
3.2/30?
16,221
96
[]
volunteer
Yep that's correct
16,221
97
[]
student
0.106
16,221
98
[]