Educational Insights Hot Dots Phonics- Variant Vowels Reinforce the skills necessary for reading success with Hot Dots Phonics Flash Cards Set includes 36-double sided cards with 72 phonics activities covering r-controlled vowels, vowel diphthongs, and silent letters. Use as basic flash cards or add the Hot Dots Talking Pen (not included) for instant reinforcement. Touch the pen to an answer dot for positive reinforcement (correct responses) or gentle redirection (incorrect responses). Perfect for independent, self-paced learning.