After each worksheet was created, it was brought into my Language Practice classes at the two universities to be tried with students and modified according to their feedback and activity level. To keep track of what modifications needed to be made, I kept a research journal and wrote about what made the lessons successful, and what needed to be changed to make the lessons more engaging. The official piloting of the worksheets was carried out in the 2019/20 and 2020/21 academic years. Table 3.15 in Section 4.5.1.1 shows which worksheet was used when and with which group. While it was still possible, and the lessons took place face to face at the universities, the students were asked to write down what they enjoyed about the classes on a piece of paper. From the moment the online feedback sheet was created in 2020 spring, the students were asked to use that feedback sheet and give feedback online, even if the classes took place face to face. The feedback sheet was created using Google Forms, and it took approximately five minutes to fill it in. The students were asked to mark on a Likert scale to what extent the activities developed their language skills and their 21st century skills, and to what extent they enjoyed the lessons. Finally, they were asked to write about whether they thought the activities were useful and whether they think they learned something about the world by doing the activities.