1. Relationship between Circumference (C) and diameter (d)

2. Concept Development Activity 1 a)With masking tape label the 4 circular shaped objects 1,2,3 and 4. b) Use the tape measure to find the circumference of each object. Measure carefully! (Use cm) c) Record results in the chart provided as you measure each object. Include unit of measure. Activity 2 a)Trace around each object and then cut your tracing out. Trace and cut carefully! Label traced copy (object # ?) Also, put your names on the trace copy. b)Fold each circle exactly in half and crease along the fold line. c)Measure the diameter of each circle. d)Record results in the chart provided. Check with me.

3. Concept Development(con’t) Activity 3 a)Using the calculator provided, divide each objects circumference by its diameter. b)Record results to the nearest hundredths in column C/d. Check results. c)Look carefully at your results and discuss with your partner any similarities you notice. Think, and answer the question below chart. d)Check with me.