Mr. Z shows that whenever students design and build something that moves, forces and energy concepts are in action. In 2012, Mr. Z wrote a book for elementary (primary) teachers with little or no background in physics. The thirty page book covers forces and energy in a straightforward way. The book, The Brilliant Book of Physics for Elementary Teachers, is now available for free. It can be found in PDF form on the home page of the website. br br www.elementary-engineering.