This Application Problem is a part of the Lesson 7, Unit 4, Grade 4. Provide protractor alternatives for students, if necessary. Some students may work more efficiently with largeprint protractors that include a clear, moveable wand. Others may find using an angle ruler easier. For students with poor vision and other restrictions, outline angles and shapes to be measured with pipe cleaners to make the activity tactile. Predict the measure of using your right angle template.