This Application Problem is a part of the Lesson 2, Unit 7, Grade 2. Gemma is counting animals in the park. She counts 16 robins, 19 ducks, and 17 squirrels. How many more robins and ducks did Gemma count than squirrels? This comparative problem type invites the use of a tape diagram. It leads into today's lesson, in which students use data involving animals to solve simple compare word problems.