Date: Thu Oct 31 05:27:42 PST 2002
Student's Name: Aaron
Answer(or question to Mentor): Well I think the anwerser is 7 1/2 feet were coverd and none of it was left dry. I figured that each section was 2 1/2 and that there are four sections anding up to a total of 10 feet to each pole. Then 1/3 of the pole that was sticking out of the ground was under water and now that I know that each section is 2 1/2 feet long so That helped me get my anwerser. Wich was that there were 3/4 of them were covered so that would give 7 1/2 feet wich would be the whole pole because the other section was under the ground.
Date: Thu Oct 31 15:23:18 PST 2002
Student's Name: Aaron
Mentor Reply: Aaron, you have demonstrated good logic in this problem but your final answer is incorrect. You have a very good start to this problem. You are correct that the pole is 7 1/2 feet above ground and 2 1/2 feet below ground, and that the total of the pole is 10 feet. However, 5 feet are dry so I'm not sure how the entire pole can be covered. If 1/3 of the pole is covered, what fraction of the part of the pole that is out of water is not covered. Your approach of figuring out sections of the pole is outstanding and can help you find the answer to the question--How many feet high did the storm surge in 2002? Thank you for responding and I look foreward to your revision. Sincerely, Erik
Date: Sat Nov 2 10:50:06 PST 2002
Student's Name: Aaron
Instructor Comments:
Erik
A fabulous response. This is excellent because you are really responding to find his exact error. Great job. One small detail: you ask a question so use a question mark after "... is not covered?" That is a good question to ask. In reading, I was wondering if maybe he forgot about the 2002 part of the question. Anyway, also encourage him to do the challenge part since he is obviously on the right track and has good explanations. Isn’t it neat to see how well students can express their thinking? And, isn't it easier to correct when you have a good explanation?
Dr. Bowers
Date: Thu Nov 7 17:47:49 PST 2002
Student's Name: Aaron
Mentor Reply: Date: Thu Oct 31 15:23:18 PST 2002
Student's Name: Aaron
Mentor Reply: Aaron, you have demonstrated good logic in this problem but your final answer is incorrect. You have a very good start to this problem. You are correct that the pole is 7 1/2 feet above ground and 2 1/2 feet below ground, and that the total of the pole is 10 feet. However, 5 feet are dry so I'm not sure how the entire pole can be covered? If 1/3 of the pole is covered, what fraction of the part of the pole that is out of water is not covered. Your approach of figuring out sections of the pole is outstanding and can help you find the answer to the question--How many feet high did the storm surge in 2002? Try the challenge problem, I think you will have a good chance at getting it right. Thank you for responding and I look foreward to your revision. Sincerely, Erik
Date: Thu Nov 7 18:06:22 PST 2002
Student's Name: Aaron
Answer(or question to Mentor): Thanks for the advice and I will try the chalenge probel
Date: Thu Nov 7 18:18:14 PST 2002
Student's Name: Aaron
Answer(or question to Mentor): The anwerser is yes his house will be gone because 60% of tthee stilt is under ground. This all I could Really think of well bye.
P.S. can you help me explain this problem father
Thanks
Aaron
Date: Thu Nov 14 18:17:15 PST 2002
Student's Name: Aaron
Answer(or question to Mentor): She ate a total of 320 calories but I dont know how to fiquer out the problem
Date: Tue Nov 19 15:40:02 PST 2002
Student's Name: Aaron
Mentor Reply: Aaron, you have a good start on the problem but it is incorrect. First try to figure out the total number of calories in the cheeseburger (hint: not 320). Once you get that answer, try putting it in a fraction over the RDA for calories. See if you can simplify your answer. When you get the answer to part 1, try part 2 and the challenge. I look forward to reading your next response. Sincerely, Erik
---For the last challenge problem, try drawing it out. 40% of stilts are underground.So, if pole is 10 feet, 4 feet are underground and 6 feet are above ground (Hint: try splitting the entire stilt you drew into four sections or fourths). This house will be 1.5 feet closer to the water but still will not get wet (look at part b). 2.5 (a fourth of stilt) - 1.875 (3/4 of a fourth of a stilt) = .625 or 1/4 of a fourth of the stilt away from the water. So, the house was barely saved.
Date: Wed Nov 20 16:53:16 PST 2002
Student's Name: Aaron
Instructor Comments: Erik,
Nice to see you continuing the conversation from the last problem--that is great.
'
I think part of the difficulty of responding to Aaron is that he doesn’t even give any indication of HOW he came up with 320. So, I think you could say that his answer is very close, but you need to see a description of how he got his answer so that you can help him find the error. (This will hopefully reinforce WHY we ask kids to write out answers too!) The rest of the response is good.--Dr. B
