“Critical thinking is learning to interact with information actively; to bring pros and cons, evaluate them to determine the truth, transform information and generate new ideas. Critical thinking is an active process, coordinated, complex, like reading and writing, speaking and listening, which involves thought processes that start with active accumulation of information that ends well reasoned decisions.” Critical Thinking in Elementary School Children: written by Nadia Mirela Florea, Elena Hurjui (more here.)
Painting by Vietnamese artist Duy Huynh 
Using Art to Teach Critical Thinking
Teaching Critical Thinking Through Art: link Teaching Kindergarten Critical Thinking Skills: link Critical thinking for Teachers and Students: link Contemporary Approaches to Teaching: link