Learning goals: Teacher Facing Critique (orally and in writing) possible values given for a situation with more than one constraint, including whether fractional or negative values are reasonable. Interpret unbalanced hanger diagrams (orally and in writing) and write inequality statements to represent relationships between the weights on an unbalanced hanger diagram. Write and interpret inequality statements that include more than one variable. Full lesson plan (warm-up, activities, synthesis, cool-down prompt) from 6.7 Rational Numbers, Grade 6.