Date: Tue Nov 19 04:58:50 PST 2002
Student's Name: Chandler
Answer(or question to Mentor): The answer to number one is 6 percent of 2000 calories.
fat14x9=126
carbohydrates 36x4=144
protein 15x4=60
add um’ all up:330 calories
1.2,000divide by 330=about 6
Date: Tue Nov 19 14:40:34 PST 2002
Student's Name: Chandler
Answer(or question to Mentor): 2.The answer is about 23. I did this 330 divided by 14=about 23
Date: Wed Nov 20 20:46:38 PST 2002
Student's Name: Chandler
Instructor Comments: Kevin,
Please respond as soon as possible. The mistake this student made is very common. One way to respond is to simply say, 'invert your fraction.' But, I don't think that helps him understand WHY. So, I think a better way would be to explain by modeling good mathematical language: like, 'The process you used in converting grams to calories is correct. I understand that you some fraction is more than 1, which would mean that she ingested more calories eating one cheeseburger than the RDA for the entire day! This is not actually what happened. In fact, what fraction of the 2000 calories allowed per day did she eat?'
Hope this helps.--Dr. Bowers
Date: Wed Nov 20 20:48:34 PST 2002
Student's Name: Chandler
Instructor Comments: Kevin,
Please respond as soon as possible. The mistake this student made is very common. One way to respond is to simply say, 'invert your fraction.' But, I don't think that helps him understand WHY. So, I think a better way would be to explain by modeling good mathematical language: like, 'The process you used in converting grams to calories is correct. I understand that you calculated 2000/6 and got an answer that is more than 1, which would mean that she ingested more calories eating one cheeseburger than the RDA for the entire day! This is not actually what happened. In fact, what fraction of the 2000 calories allowed per day did she eat?'
Hope this helps.--Dr. Bowers
Date: Thu Nov 21 10:47:27 PST 2002
Student's Name: Chandler
Mentor Reply: Chandler,
Thanks for your response. Your methods for finding the amount of calories in the cheeseburger are correct. However, why did you do 2,000/330? When you get an answer of 6, that means that she ate 600% of what is allowed by the RDA! (HINT: In order to find the fraction of what she ate for the day, you need to put the amount of calories from the cheeseburger over the whole amount of calories suggested by the RDA)
Once you revise your first answer, try answering number 2 and the challenge. You are on your way! I am looking forward to reading your next response.
Kevin
