A learning object is a reusable unit of instruction for e-learning. In order to use it in different contexts, the presentation has to be separated from the content. which calls for specific data formats. SCORM is such a format.
... characteristic 2, the element 2a is zero and it is impossible to divide by it.)
The symbol
<math>\pm \sqrt {b^2-4ac}</math>
in the formula should b ...