Trace and find the lowercase letter u. 1. Tap the button to start. 2. Tap the button, and pick a color. Then, trace the black u in the center of the page. Say the name of the letter and it's sound each time you rainbow write the letter. 3. Circle any lowercase u's you see around the middle letter. Say its sound each time you find a matching letter. 4. Tap to submit your work.