Learning goals: Teacher Facing Comprehend that two numbers are called “opposites” when they are the same distance from zero, but on different sides of the number line. Interpret a point on the number line that represents a positive or negative rational number. Plot a point on a number line to represent a positive or negative rational number. Full lesson plan (warm-up, activities, synthesis, cool-down prompt) from 6.7 Rational Numbers, Grade 6.