Tutor.com Patterns Session

Feb. 2, 2013

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Session Transcript - Math - Middle Grades, 1/29/2013 4:36PM - Tutor.comSession Date: 1/29/2013 4:36PM
Length: 71.8 minute(s)
Subject: Math - Middle Grades


System Message
[00:00:00] *** Please note: All sessions are recorded for quality control. ***

piper (Customer)
[00:00:00] take home test

James E (Tutor)
[00:00:09] Hey, this is James. How can I help you on your problem today?
[00:01:53] I see you said that you had a take home test. How about we start on one of your problems? Is there any one giving you trouble?
[00:03:39] Ok, i see the first part of your problem.
[00:05:30] I see the numbers/scores.

piper (Customer)
[00:06:34] ?

James E (Tutor)
[00:07:12] Ok, so what is the question the problem asks for? or where do you need help?
[00:09:58] Ok, i see the question. Are you familiar with any of these measures?

piper (Customer)
[00:10:07] no

James E (Tutor)
[00:10:50] Ok so i will define them and then maybe you can try to choose which is best from there, does that sound ok?
[00:11:52] Mean: is the average of the numbers...

piper (Customer)
[00:12:29] ok

James E (Tutor)
[00:12:34] Median is the number is the exact middle of the numbers. But first you need to line up the numbers highest to lowest...

piper (Customer)
[00:13:11] ok

James E (Tutor)
[00:13:16] Mode: is the number that shows up the most. Not like 5 or 4, however like 576 is a score twice.
[00:13:50] Range: is the difference between the highest number and the lowest number.

piper (Customer)
[00:14:19] ok

James E (Tutor)
[00:14:29] Do those make a little more sense now?

piper (Customer)
[00:15:08] not really

James E (Tutor)
[00:15:24] Ok, thats fine.
[00:15:33] So lets go about a different way.

piper (Customer)
[00:15:45] ok

James E (Tutor)
[00:16:21] When you have grades in school, at the end of the year, you get a final grade. Are you following me on this example so far?

piper (Customer)
[00:16:29] yup

James E (Tutor)
[00:16:58] The final grade is an average of all your grades in the class.

piper (Customer)
[00:17:20] yues so mean...yes?

James E (Tutor)
[00:17:25] yes
[00:18:01] Most often for grades we use an average/mean. It helps us find what we typically made on the test.
[00:18:19] Good job
[00:19:08] Do you have any other problems today? or any questions that you didnt understand about this problem?
[00:20:11] Are you there or did we lose connection?

piper (Customer)
[00:20:14] yes

James E (Tutor)
[00:21:59] I see your problem. Do you know where to start?

piper (Customer)
[00:22:57] ?

James E (Tutor)
[00:23:24] Have you done any problem like this before?

piper (Customer)
[00:23:30] nope

James E (Tutor)
[00:23:48] Thats fine.

piper (Customer)
[00:24:15] ok

James E (Tutor)
[00:24:23] So the rule for turning a decimal into a percent is easy enough.

piper (Customer)
[00:24:31] ...

James E (Tutor)
[00:24:49] What you do is multiply by 100, and then add a % sign.
[00:25:33] So a quick example is if you had .5, then percent would be .5 times 100. (50%)
[00:26:10] Did you understand that?

piper (Customer)
[00:28:06] ok,do you want me to do it

James E (Tutor)
[00:28:24] Go ahead and give it a try.
[00:29:47] Good job!

piper (Customer)
[00:30:03] what next

James E (Tutor)
[00:30:38] So what did you find was the answer of .02 times 100. Was it 2?

piper (Customer)
[00:30:57] yup

James E (Tutor)
[00:31:21] So there is your answer. Just dont forget to add the % sign.
[00:31:23] 2%.

piper (Customer)
[00:31:35] abcd?

James E (Tutor)
[00:32:38] Can you eliminate any? Because you know the answer is 2%.

piper (Customer)
[00:33:28] 20

James E (Tutor)
[00:33:44] good. D is out.
[00:34:02] Now is .02 the same as 2? (A)

piper (Customer)
[00:34:13] yes

James E (Tutor)
[00:34:38] Not quite.
[00:34:44] Close.

piper (Customer)
[00:35:06] c

James E (Tutor)
[00:35:08] .02 is equal to 2%.
[00:35:11] Yes!
[00:35:14] Great!
[00:35:43] So they are trying to trick you because of the .0 at the end of it.
[00:36:00] but 2.0 is the same as 2.

piper (Customer)
[00:36:25] next? question?

James E (Tutor)
[00:36:32] yes
[00:37:10] To review the old problem, to turn a decimal into a percent. We multiply by 100, then add a % sign.
[00:39:54] Is see your problem.
[00:41:53] I see your table.
[00:44:49] I see the table filled in.
[00:48:25] Do you have any idea? or can you eliminate any of them?

piper (Customer)
[00:49:23] ok
[00:49:46] range

James E (Tutor)
[00:50:21] I dont see range. I only see A,B,C,D.

piper (Customer)
[00:50:35] oh i meant d

James E (Tutor)
[00:51:02] You like like that answer or want to eliminate that one?

piper (Customer)
[00:51:18] eliminate

James E (Tutor)
[00:51:23] Good!
[00:52:10] Ok, do you remember what mode meant?

piper (Customer)
[00:52:17] most

James E (Tutor)
[00:52:27] Which occurs the most?

piper (Customer)
[00:52:33] 2

James E (Tutor)
[00:52:37] which price occurs the most?

piper (Customer)
[00:53:01] none

James E (Tutor)
[00:53:12] Ok let me reword.
[00:53:22] Which amount is chosen the most.
[00:53:27] ?

piper (Customer)
[00:53:31] 8.00

James E (Tutor)
[00:53:36] Good!
[00:53:52] I see why you said 2 at first. That was my fault.

piper (Customer)
[00:54:01] thts ok
[00:54:24] whats next

James E (Tutor)
[00:54:37] So the median is what amount?

piper (Customer)
[00:54:44] middle

James E (Tutor)
[00:54:57] Great!
[00:55:14] What number is in the middle of the price column?

piper (Customer)
[00:55:13] 9

James E (Tutor)
[00:55:19] Perfect!
[00:55:39] Now the mean? Do you know that one?

piper (Customer)
[00:55:59] no

James E (Tutor)
[00:56:29] Yes you do. We've done it before. We'll do it together.

piper (Customer)
[00:56:59] ????????????????????????

James E (Tutor)
[00:57:51] So this average is a little more complicated.

piper (Customer)
[00:58:02] yes it iz

James E (Tutor)
[00:58:31] Do you remember anything about a weighted average?

piper (Customer)
[00:58:48] nope

James E (Tutor)
[00:59:02] Thats fine.
[00:59:24] So the first step is to find the total for each. So 20 x 6.
[00:59:34] see?
[01:01:29] great job!
[01:01:42] now we add those numbers together.
[01:03:02] Type your answer when done, I cant see it.

piper (Customer)
[01:03:47] 69

James E (Tutor)
[01:04:04] Lets to that one again.
[01:04:28] So we are going to add the 120+120+72+100+112+14+10+4

piper (Customer)
[01:05:09] 30
[01:06:00] ?

James E (Tutor)
[01:06:10] We need to check our math again. Do you use a calculator or pen and paper?

piper (Customer)
[01:06:24] couculator

James E (Tutor)
[01:06:53] ok
[01:07:41] so the total is going to be 552. Im not sure how you used the calculator. Be sure to add all the numbers.

piper (Customer)
[01:08:00] then devide by8
[01:08:26] thts the # of data

James E (Tutor)
[01:08:32] Divide by 50. Because we interviewed 50 people in the questions.

piper (Customer)
[01:08:40] oooooo

James E (Tutor)
[01:08:47] I see way you said 8. You were ahead of me

piper (Customer)
[01:09:52] sryy so... is tht right

James E (Tutor)
[01:10:00] yes!
[01:10:02] Great!

piper (Customer)
[01:10:11] so its a

James E (Tutor)
[01:10:15] Now which is the highest

piper (Customer)
[01:10:16] a.)

James E (Tutor)
[01:10:19] PERFECT!
[01:10:28] long process but we got there
[01:11:03] It was great working with you today. I am sorry however that we will have to end our seesion here. If you still need help tutor.com would love to help you. You are able to log right back on after this session. If you could please rate your session, so we can help you better in the future.