Situations in which I spoke Portuguese

First week, all groups. This story I already told here.  I had planned a drawing activity for all groups. For 1^st and 2^nd grade, I asked them to draw what they wanted to learn in English along the year. For the 3^rd, 4^th and 5^th, what they remember from the former years. They had to draw the vocabulary they remember. Those are very difficult to explain only in English and gestures. So I typed this instruction in Portuguese on Google Translate and clicked on the sound symbol, so everybody could understand the activity. For the next classes, I will try to plan activities that I would not need something like that to make them understand me. 

March 31st, 4th grade 3, a class about numbers. One of the students said "It is very easy. Don't you have something more difficult?". I did not answer anything and he was already annoying me, cause he left the classroom twice and was talking too much. Then he told me that he did not know how to say 21 (twenty one). I explained in English and then said in Portuguese: "Wasn't it too easy?" (Você não falou que era fácil?).

The third situation was with the 5th grade. They were making inappropriate jokes, like "The next person who says something, will be f***** by ____". Very calm, I asked one of the students to come with me to talk to the pedagogical coordinator. As she does not speak English fluently, I explained the situation in Portuguese before the student.

The fourth situation is some conversations I had with one of the 4th grade students. He seems to like me and I like him, too, and he lives close to my house. I wanted to enjoy the time I spent with him, so I talked in Portuguese and asked him not to tell anybody.