6 lessons of ready-to-use, editable, visually engaging PowerPoints covering a full Ratios, Proportion and Variation unit at 30% OFF! These are perfect for Year 10-12 or VCE Foundation Mathematics 3&4 students and includes all key concepts from direct variation (proportion) to dividing in a given ratio. Suitable for Australian Curriculum or general high school use. Save hours of planning! Lesson 1 - Direct variation (proportion)Lesson 2 - Direct variation (proportion) and ratiosLesson 3 - Inver