Development:Numerical question units and intervals: Difference between revisions
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100.5 +/-0 first than 100.5 +/-0.1)'' | 100.5 +/-0 first than 100.5 +/-0.1)'' | ||
Feedback: | Feedback: | ||
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Answer 10: Accepted error ± Grade: | Answer 10: Accepted error ± Grade: | ||
Feedback: | Feedback: | ||
[_] differentiated unit feedback, which is all of: | [_] differentiated unit feedback, which is all of: | ||
[_] feedback for lacking unit [_]Feedback for accepted UNIT but wrong number | |||
[_] feedback for "possibly right number" if unit is adjusted | [_] feedback for "possibly right number" if unit is adjusted | ||
[_] feedback for "Unit not recognized, either misspelled, wrong type, or just not expected" | [_] feedback for "Unit not recognized, either misspelled, wrong type, or just not expected" | ||
(o) missed unit gives standard retry reduction of points (_)no reduction for missed unit (_)this reduction [___] | |||
Unit: [ ] (optional) | Unit: [ ] (optional) | ||
Should accept arrays like '''kg, kilogram, kilograms , kilogramme, "kilo gram"''' | Should accept arrays like '''kg, kilogram, kilograms , kilogramme, "kilo gram"''' |
Revision as of 13:29, 23 November 2006
This is my proposal for how the numerical question function and interface should be improved.
[_]Allow evaluation of expressions
Checking this would accept 5/2 0.5*5 5^2/2 5^(5-3)/2 25*10^-1 sqrt(25)/2
[_]Allow fraction type 2 1/2 as 2.5
[_] Translate "½" as "+.5" but give warning "Avoid ½ character in numerical expressions!"
Answer 1:[ 2.5 ] Accepted error ± [0.5] Grade: [100%] Feedback:
Answer 2: [ 100.4..100.5) ] Accepted error ± Grade:
Which would be interpreted 110.4 <= right < 100.5 i.e. the round parentheses would mean that boundary not included in intervall or that one could enter evaluation strings like 110.4<=ans<100.5||100.5<ans<=100.6 (I know that this particular thing can be addressed by having 100.5 +/-0 first than 100.5 +/-0.1)
Feedback:
....
Answer 10: Accepted error ± Grade:
Feedback:
[_] differentiated unit feedback, which is all of:
[_] feedback for lacking unit [_]Feedback for accepted UNIT but wrong number [_] feedback for "possibly right number" if unit is adjusted [_] feedback for "Unit not recognized, either misspelled, wrong type, or just not expected" (o) missed unit gives standard retry reduction of points (_)no reduction for missed unit (_)this reduction [___]
Unit: [ ] (optional)
Should accept arrays like kg, kilogram, kilograms , kilogramme, "kilo gram"
Alternative Units: Multiplier:[ ] Unit: [
Should possibly give feedback for misspelling including case errors m milli M Mega
Multiplier: Unit: