I've added your description in the task description (and fixed a bit the text), it will be easier this way.

Main screen allows to access:

• Dashboard screen
• Connecting devices screen
• Following results screen
• Managing pupils screen
• Manages sequences screen
• Managing workboard screen

An option to hide the titles of these screens in the menu allows to gain some place once the user knows the meaning of each icon.

Most activities use datasets for defining excercises they present to the user. The formats of these datasets are mostly specific to a single activity, at best few activities share a common format dataset (like wordlists). Some activities load their data from external files, many define them internally. dataset handling design.