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Expression
Enter an expression or equation. Here is an example! Use whatever variables you want. Be sure to define the variables in the question, as the user will get the answer incorrect if they use a variable other than the one set in the correct answer box.
- Correct answer: write in the correct answer in equation form.
- Select the set of buttons the user needs to best answer the question. Fewer buttons are better both to prevent confusion, and minimize the display size of the widget overlay.
- Form: The student’s answer must have the same structure as the answer you’ve provided. That means the same coefficients and the same terms/factors. Commutativity and excess negative signs are ignored.
- Simplify: The student’s answer must be fully expanded and simplified.
- Use × for rendering multiplication: Will use /times instead of /cdot in both the rendered output and the acceptable formats examples. Sometime soon, will also cause a button to appear labeled /times that inserts an asterisk. This option is intended to be used for early expressions (pre-algebra) before variables are introduced.
- Function variables: By default, single-letter symbols are interpreted as variables. This can be overwritten by specifying a space or comma-separated list of variables that should be interpreted as functions. Note that variables are case sensitive; e and i are reserved. If no functions are specified,