How to announce new exam to students
Select the topic from your plan to be tested. You can select more topics, use CTRL key.
Press "+" in the right bottom corner and choose "Plan an exam event".
Then choose "Assign" from top menu. Check Study topics and class.
Fill in the date of exam and then press Done.
Students will be notified of upcoming exam. They can test themselves from questions you prepared for them (and attached to standards, specified in study topics). They can do it easy in mobile application.