Cas is an expert on the thinking brain and coined the mother ship of all thinking and how it relates to thinking as well as to short- and long-term retention.

He detected the existence of the chronosensor in the brain which guides the brain to detect patterns which is important in all subjects and extremely visible in language and maths.

Thinking Tools originated from the book The DNA of Great Teachers (2012) which was the result of 8 years seeking the truth about the learning brain.

With thinking Tools he aims to destruct traditional dinosaur teaching practices such as:

  • Starting lessons by stating the learning outcomes. Learning outcomes are most of the time not understood by learners at the beginning of the lesson. Learning outcomes say what will be mastered at the end of the lesson therefor they don’t serve a purpose at the beginning of a lesson. The Thinking Tools enables learners to discover the learning outcomes throughout the lesson.
  • Memorizing textbooks by summarizing or reducing a chapter to an A4 page and then to o an A5 pages and then to keywords. This process is repeated for weeks on end. During the assessment, it is expected from the brain to expand what was reduced, to demonstrate deep thinking and insight while solving problems.
  • Teachers who transfer THEIR knowledge to the visual and hearing areas of learners’ brains and then subsequently expect the frontal cortex to demonstrate insight and solve problems.

He was a biology teacher and head of department, training adviser at the University of Pretoria, research coordination with the National Training Board and a training adviser with the department of labour.