...
1) use a numeric free response question (which is coded in TeX) as a template. You'll know because there will be just a question, with no choices provided in the upper TeX box question part (the "expl" is the explanation).
2) To convert a TeX open to TeX multiple choice three additions are needed:
in In the upper TeX box, we have to put in answer choices:
| Code Block | ||||||||
|---|---|---|---|---|---|---|---|---|
| ||||||||
\choice{}{1}{@t} |
...
\choice{}{2}{@dist1} |
...
\choice{}{3}{@dist2} |
...
\choice{}{4}{@dist3} |
...
\choice{}{5}{@dist4} |
....Answer choices can go up to 10! everything except what's in bold needs to be there.In the lower The brackets containing the answer choices can also be inserted with any math functions, text, or variables of your choice.
Then in the code box, we have to define the variables and describe what those distractor answers answer variables should be 3a) define the variables in the code box /* global double dist1 comments area:
| Code Block | ||||||||
|---|---|---|---|---|---|---|---|---|
| ||||||||
/* global double dist1 u={units} */ |
...
/* global double dist2 u={} */ |
...
/* global double dist3 u={} */ |
...
/* global double dist4 u={} */ |
This says Note that dist1-4 are defined as global doubles, and so will be recognized in accessible by both the lower code box and upper TeX box; hence global double. The specific units . Units may be placed specified as indicated above.
3b4) Now we direct what we want the distractors variables to be set to:
| Code Block | ||||||||
|---|---|---|---|---|---|---|---|---|
| ||||||||
dist1 = omega*pi/60.0/alpha; |
...
dist2 = omega*2.0*pi/alpha; |
...
dist3 = 2.0*pi/60.0/alpha; |
...
dist4 = omega*2.0*pi/60.0; |
use variables already defined.
5Note that omega, pi, and alpha are variables used to simplify each calculation.
3) The answer itself also needs one tweak
t = omega*2.0*pi/60.0/alpha;
ans1 = 1;
ans1 =1 means the first answer choice in the upper code box is the correct one.
6For NFR, the actual answer is identified as ans1 (ex: ans1=@a1). However, for multiple choice, we instead set ans1 as the number of the correct answer choice.
For example, let's say that choice 3 is the correct answer:
| Code Block | ||||||||
|---|---|---|---|---|---|---|---|---|
| ||||||||
\choice{}{1}{answer choice 1}
\choice{}{2}{answer choice 2}
\choice{}{3}{answer choice 3}
\choice{}{4}{answer choice 4}
\choice{}{5}{answer choice 5} |
Then in the code box, we set ans1=3:
| Code Block | ||||||||
|---|---|---|---|---|---|---|---|---|
| ||||||||
ans1 = 3; |
If you're getting 'tex validation errors' please check that ans1 is set to an integer.
Pro tip: When first starting a question, set ans = expression on how to calculate the answer. In the upper TeX box, in choice 1, put in ans, and in the bottom Code box, ans1=1.
5) check the upper TeX box explanation to ensure that the final answer displayed will be (in this case, t)
'@' means the variable is being summoned called from teh the code box to the TeX box–the latter which is what is displayed.
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