Same Shape, Different Dots
Chapter 2 of 12Page 1 of 5

تTubA Tub is the bowl, and the two soap bubbles above it are the two dots.
Letter Variations
Commonly Confused
The dot below ب is the Boat's buoy, so ب sounds like b. The two dots on top of ت are the Tub's soap bubbles, so ت sounds like t.