Long time no see

We worked quite a lot over the past year. We gathered many materials, but this teacher - try as she might - didn't manage to post the results of the students' work. However, these materials deserve a lot of credit due to the effort that went into making them and, even if they will not have a chronological order - or any other order, for that matter- they will be featured on Blogger (with English or Romanian presentations attached to them, as these were written at the time).
Hoping everyone will enjoy the posts, I would like to thank my students for their hard work and their excessive patience.