Date: Fri Nov 15 10:40:06 PST 2002
Student's Name: Alan
Answer(or question to Mentor): The answer to problem 1 is 330. I multiplied the 14 grams of fat and the 9 of the calories and I got 126. I did the same for the 36 grams of carbohydrates and the 4 calories for every gram there was. I did the same for the protein as I did as the othere two and I got a answer of 330.
Date: Tue Nov 19 00:24:37 PST 2002
Student's Name: Alan
Mentor Reply: Hi Alan,
The answer you submission to the IMP problem is the total number of calories in a cheeseburger but not the answer the problem was asking for. This is very important information you will eventually need. Question #1 asks what fraction or percent of her daily intake has she ingested? You are given that the total recommended daily allowance of calories is 2000 cal/day. To get the answer to #1, how would you determine what 330 out of 2000 is?
Question #2 asks what fraction or percent of the cheeseburger is fat? You found the total calories of fat in the cheeseburger, now how does the number of fat calories compare to the total number of calories in the cheeseburger?
HINT
Remember a fraction = N/D
Denominator (D) is the total number of the whole and
Numerator (N) is the total fraction (part) of the whole
A fraction = N/D
Resubmit your new answer to #1 and #2 using the hint given. Don’t forget to try the challenge problem.
Sincerely,
Angelica
Date: Wed Nov 20 14:23:35 PST 2002
Student's Name: Alan
Instructor Comments: Angelica,
FYI: The initial framing of this question DID ask how many calories were in a cheeseburger, and so I don't want you to say that this was not the answer to #1,because it actually IS the correct answer to the OLD #1. So, can you say instead 'Congratulations, your answer of 330 calories in a hamburger is correct. Now, the questions that you need to answer are: (1) what fraction of 2000 calories is 330?, and (2) what fraction of those calories are fat calories?' Then you can proceed to give him your hint, although, according to his teacher, he probably already knows what fractions are. What you could do is include a description of what a percent is. Also, you have a duplication. You say Fraction = N/D, then you say that same thing again. I would erase the second phrase.
Dr. Bowers
