Water Treatment

Guidance Concerning Solving Problems and Presenting Your Solutions Neatly and With Clarity
Read the problem. Think about it, make sure you understand (a) the system described by the problem and (b) the desired answer(s). Consider possible solution methods, then solve the problem on SCRAP paper, using drawings and/or writing down appropriate equations and what is known and unknown. You may not need to obtain the final answer, but you should at least map out your solution method. On "good" paper, write down the word problem, then draw a neat figure (unless absolutely not needed or appropriate). Next to or underneath this figure, write down the given information. Indicate the source of any given information that is not from the problem description, e.g., data from a Table in the course text. Write down any equation you use first in variable and standard form, e.g., F = ma, then solve for the appropriate unknown (still using just variables), e.g., a = F/m. Finally, insert numbers and determine the numerical answer. Variables and values should not appear out of "thin air". Variables must be standard or defined in the problem. Values must come from the list of givens, an identified outside source, or a calculation using an appropriate equation. Diagrams are often useful in defining variables, especially lengths. State any important assumptions.
Interpreting my abbreviations
ME	Math Error
IA	Identify your answers
TMSF	Too Many Significant Figures
Units	You didn't include the units
RDR	Work is out of order
NTR	Work needs to be neater
CLR	Work needs to be clearer
XPLN	Come see me and explain your work
Cross-outs and Slash-outs
If I cross-out (X) an answer, it indicates that the answer is wrong and (1) the method used to get it was incorrect or (2) I couldn't figure out where you made your mistake. If I slash-out (/) an answer, it indicates that the method was correct, but one or more of the input values was incorrect.
Name, course, and homework assignment
Your entire name should appear on the back of the last page, in the upper right corner. Underneath, write the course name and homework assignment. You may also put your name on the back of other pages, but its not required. Don't put any identifying marks on the front of any page. Don't use a cover page.
Date and Page Number
Top center of front of each page: Date (Month/Day/Year) Top right of front of each page: Page Number (#/Total #)
Order and Answer Identification
Problems and pages must be submitted in numerical order. The parts of each problem must also be submitted in order (numerically or alphabetically). Answers must be identified, either underlined or boxed.
Neatness and Clarity
Your work must be neat and presented in such a way that your solution method is clear. Work that is messy and/or difficult for the grader to follow can receive a grade of (a) zero, if the numerical answer is wrong or (b) no more than half of the total possible score, if the numerical answer is correct. In the case of (b) you may be asked to explain your answer orally.
Figures
If you are using a Figure (data plotted on orthogonal axes) to estimate numbers, it must be (a) large (fill a complete page), (b) drawn with care using ruler, French curve, computer, etc., and (c) drawn on graph paper (at least engineer's paper, but sometimes closer lines are required).
Paper
You may use any type of paper, as long as it is clean and does not interfere with the legibility of your work.
Writing Implement
I prefer pencil, as mistakes can be neatly erased. You can use pen, but you'll lose points if your work is messy.