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Examples of Individualizing ProblemsWith LONCAPA, an instructor can create and/or assemble individualized assignments, quizzes, and examinations with a large variety of conceptual questions and quantitative problems. "Individualized" means that each student sees a slightly different computergenerated problem (see demo problems). This encourages collaboration between students on a conceptual level, but prevents blind copying of answers. Problems can include pictures, animations, graphics, tables, links, etc.. The writing and development is done through a webbased editor, and facilitated by templates. Students are given instant feedback and relevant hints via the internet and may correct errors without penalty prior to an assignment's due date.
LONCAPA has dynamic plotting support  in this problem, both the plotted function and the xvalue are different from student to student. The student has to graphically determine the slope.
The labels on the above image are different from student to student, so are the options and the order of the options. Labels on the image and in the options automatically correspond.
LONCAPA has full LaTeXsupport from both online and print. In the example, the ammonia mass and the efficiency are randomized. LONCAPA can accept and grade multidimensional symbolic answers, including mathematical equivalence. In these examples, the functions in the vector are randomized.
LONCAPA can check for algebraic properties. In this example the function that the student enters is integrated using the underlying computer algebra system. LONCAPA has full support for physical units, understands all SIunits and their relationships, as well as all prefixes.
In this example, the student can see the plot build up over time. The parameters for this plotting applet are randomized. There are multiple answer fields, which require physical units in the answer.
In this example, the options and the order of the options are randomized.
In this example, the options are randomized.
Tolerances for numerical answers can be set symmetric and asymmetric, absolute and relative. In addition, ranges for number of significant digits can be specified. LONCAPA supports input and grading of chemical structures. 

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