Remove the middle insert of the unfinished frame and paint it with Americana Chalk Paint. Let it dry completely.
Using a hot glue gun, attach the rulers to the cardboard circle.
Stagger another layer of rulers
Attach a second layer of rulers, directly on top of the first layer. Stagger them to fill in the gaps.
Cut a piece of Chalk Core paper to fit inside of the frame and write the teacher's name on it using a Bistro chalk marker. Insert the paper into the frame.
Attach the frame to the center of the sunburst rulers with a generous amount of hot glue.
To hang, attach a sawtooth hanger or attach a long length of ribbon to the back of the cardboard circle and hang it from a hook.