Given the height and weight of a person, one can compute the body mass index, short BMI, by using the formular *weight/height²*. Create a topic type _Person_ accordingly. The user should only have to enter height in meters and weight in kilogramm and the BMI should be computed automatically and displayed in the fact sheet.

You need to understand:

Create a small application that supports you when learning vocabulary from a new language. You should be able to record words from the new language with their translation into your language. Make a page to test your vocabulary knowledge.

You need to understand:

Build a small database that lets you record when you exercised, the type and duration of the exercise. Add a remark field as well.

You need to understand: