I often use this Design Thinking Process booklet when teaching STEM units. My students are presented with a variety of problems, for example, build the tallest structure you can using only pegs and pop-sticks. They then use the booklet as a guide to ensure they complete the entire Design Thinking process in order the solve the problem. You will find that the vocabulary used for Design Thinking varies according to the source. I have altered some of the terms to suit my middle primary students. This product is very versatile in that you can use it for any problem or topic!
PS I have also used American spelling - sorry fellow Aussies!