Hello Tingyan,
I think the examples you presented is very clear and useful. As an international student, I also had the experience of learning IELTs and taking IELTs test. I think the online tool you recommended is very useful and helpful. I really liked that you highlighted some key words by using bold in your post, which makes it clearer and easier to read. Also, I agree with your ideas about that the learning strategy of cognitivism focuses on the mental process. The example you provided helps me to better understand this strategy as well.