Mr. Difference Pre-Technical Studies is a spiral revision book (covering Grade 7 , 8 and 9) developed as the ultimate companion to providing practical experience that support the Acquisition of Skills for the Competency Based Curriculum. Mr. Difference has a range of activities designed to reinforce the understanding of key concepts and assessment techniques through inquiry based learning. inquiry Based Learning is supported in the book through various features outlined in the tour book which is positioned in the first four pages of the book.