Math and Formula
The Math Formula question allows students to easily enter complex math as a response, with advanced validation capabilities using math specific scoring methods, in conjunction with our purpose built math engine.
Create a Question
Enter the question stem in the Compose Question area. If you want to insert some math in the stimulus, you can use the Math Editor. Note that the student will not be able to interact with math entered this way. To access the Math Editor, click inside the Compose Question text area and select Math Editor from the Rich Text Editor panel (see Figure 2).
Figure 2 - Rich Text Editor panel with Math Editor button.
A new window with a keypad will pop up and you will be able to add a LaTeX or MathML expression. Figure 3 shows an example.
Figure 3 - Question with math expression in the stimulus.
Student response boxes (and math expressions) are added in the Template area. This is a LaTeX only area, and math expressions and response boxes are entered using the LaTeX Keypad - as seen in Figure 4 below.
It is important to remember that everything entered into the Template area must also be entered into the Value field in the validation area, or the question will not validate properly.
Figure 4 - Authoring a Math Question with the LaTeX keypad.
Follow these steps in order to configure validation:
- STEP 1: Insert a value in the Point(s) box to set the score for the question. The default value is 1.
- STEP 2: Underneath the Point(s) area, select a suitable math scoring method from the dropdown menu. There are various scoring methods available in math question types. You can learn more about each of them and play with interactive examples on our [Formula page]. For this example we are going to choose [equivSymbolic]. This will accept any math that is symbolically equivalent to what the author enters in the Value field, and is the most flexible scoring method.
- STEP 3: Now insert the correct response into the Value field. In the case below, the correct response must be in the form x+y=z and the sum of two terms must be . You only need to enter one possible solution in the Value field in order to make it work. Remember that everything that has been entered in the Template area must be copied to the Value field in validation.
Figure 5 shows validation settings for this example. EquivSymbolic also validates percentages and decimals as equivalent.
- STEP 4: Each scoring method has additional options that allows authors to set more precise validation conditions. A breakdown of all options associated with certain scoring methods can also be found in our [Formula tutorials]. When you select a scoring method, all of its extra options will be displayed underneath the Value field.
Figure 6 - Additional options
Additional formatting options can be found under More Options:
- Scoring Type - defaulted to Exact match and only option available.
- Participation Points - set minimum points awarded for attempting question.