Mathematics - Functions - Linear - Graphing linear functions - Connect the Dots Pattern

Show a coordinate grid. Automatically plot points for f(x) = 2x - 1 for x = -2, -1, 0, 1, 2, 3. The student sees the points appear one by one: (-2,-5), (-1,-3), (0,-1), (1,1), (2,3), (3,5). Ask: 'What shape do you see?' Draw a line through them. Then show f(x) = x² for the same x values. Points form