The ability to think critically, reflect, and analyze is a crucial skill that needs to be developed and mastered. How are relevant sources of information to be found? How are all these different sources to be evaluated and compared? What are the valid methods to explore and study the worlds? Critical reflection requires a solid knowledge base, at the same time providing room for questioning and inquiry. It is therefore important to find a balance between teaching (and learning) about well-established knowledge and inquiry-based thinking which is necessary to develop new knowledge. In this part of International@Home, we invite you to present and discuss different perspectives on developing pupils’ critical thinking skills in the classroom context.