As global industries change and technology advances, traditional education systems might no longer be able to supply companies with graduates who possess an appropriate mix of skills and experience. The recent increased interest in Design Thinking as an approach to innovation has resulted in its adoption by non-design-trained professionals. This development necessitates a new method of teaching Design Thinking and its related skills and processes. As a basis for such a method, this research investigated 51 selected courses across 28 international universities to determine "what" Design Thinking is being taught (content), and "how" it is being taught (assessment and learning modes). To support the teaching and assessment of Design Thinking, this paper presents "The Educational Design Ladder," an innovative resource/model that provides a process for the organisation and structuring of units for a multidisciplinary Design Thinking programme.