Learning goals: Teacher Facing Compare (orally and in writing) the dimensions and scale factors of multiple scaled copies of the same figure. Explain (orally) how to estimate or calculate the percentage of a rectangular area that is covered by another region. Generate the dimensions for a scaled copy of an original figure that has fractional side lengths. Full lesson plan (warm-up, activities, synthesis, cool-down prompt) from 7.4 Proportional Relationships and Percentages, Grade 7.