It appeals to the all-important aspect of play! Once you can get your kid having fun, engaged and fascinated with something, that opens the door to explaining what the dots and symbols represent. With time, it gets into the muscle memory and subconscious of the child! First, be the example by taking a few rolls and showing how it’s done, explaining the numbers as you go along.
Your child will mirror this. Then, count off the numbers, so they will eventually develop a pattern of recognition.  With time, you will begin to be able to drill them with each roll of the dice, as they learn to call out the numbers as they see them!