A set of 10 worksheets and a quiz on circles and degrees, designed for fourth grade level. Covers 1/4, 1/2, and 3/4 turns (90, 180, 270 degrees) as well as measuring angles with a protractor, circle terms (center, radius, diameter, chord) and estimation of circumference. Shares many questions with the fifth grade set, but concepts are in a somewhat different order, and this set does not teach calculation of circumference or construction of circles. Can be used in tutoring or as a resource wit