More options for teachers in creating exercises, in particular for maths (for an overview, check out these feature highlights for math exercises).

## Major updates

**Answer Rules**: you can now add specific feedback for math exercises based on characteristics of the student's answer. Use mathematical operators on the student's answer to determine which feedback to give.

**Decision trees****:** create adaptive exercises or help sequences, using custom logic that show subquestions based on the correctness of the student's answer.

**Operators**: a new type of functionality has been added to Grasple. You can now use the Computer Algebra System to calculate or evaluate parameters. Currently there are 6 calculus and 6 linear algebra operators available. More will be added in the future.

**Monitor update**: as teacher you can now view the progress of an individual student.

**Test settings**: a teacher can now configure most settings of a test themselves via the edit menu of a test.

## Minor updates

- "i" as imaginary unit: you can now also use the small "i" to denote the imaginary unit. Capital "I" is also still valid as imaginary unit.
- symbols with apostrophe: y', y'', etc. are now correctly parsed by the CAS system
- resume practice: students can now resume their previously started practice session
- individual test results: teacher can now view the question and answers for each individual student in their course
- easier linking: exercises can now be linked to tests and subjects from more places in the platform
- test results: as teacher you can now see both the maximum and latest result for all your students in a test