The Touchstone Level 4 Whiteboard Software contains all 12 units of the Level 4 Studentâs Book. It is designed to be used alongside the Studentâs Book, offering teachers a rich resource to complement the course and a more flexible way to manage and present the Studentâs Book in class.The software features: key sections from each lesson of each unit of Touchstone Studentâs Book 4, including all illustrations and photos; the class audio from every lesson, with the option to play at 80% of normal speed and accompanied by the audio script; Touchstone Level 4 video integrated into each unit; and Level 4 of the Touchstone Arcade.