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.
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.