This Application Problem is a part of the Lesson 31, Unit 7, Grade 3. Mara draws a 6-inch by 8-inch rectangle. She shades one-half of the rectangle. What is the area of the shaded part of Mara's rectangle? Students may also divide the rectangle lengthwise and get an 8-inch by 3-inch rectangle or find the area of the whole rectangle and divide it by 2. This problem reviews calculating area from Module 4.