Question Engine 2:Numerical questions
The Question Engine 2 structure allows implementation of new features for numerical question types ( numerical and calculated).
The new question engine define a new rationale for classifying questions and there are possible conflicts between the new models and the numerical question type that is inherited from preceeding moodle versions mainly 2,0 and 1,9.
See also http://tracker.moodle.org/browse/MDL-27418 and
See also http://tracker.moodle.org/browse/MDL-28118 where the work will be continued.
The simplest version of a numerical is a question where
the answer is defined as a numercial quantity that is written be the teacher following PHP valid syntax
a response which is a numerical quatntity that is written be the student following PHP valid syntax
The grading is done allowing for a numerical tolerance that is set by the teacher.
The actual moodle numerical questions differ from this simple model and this will be explored here.
See also Question Engine 2:Numerical formats
