These flashcards help teach the sounds of single letters and letter combinations. Flashcards are an integral component of reading instruction. Following the guidelines from the science of teaching reading, instruction needs to be directly taught, organized, and scaffolded (one skill builds on foundation of the next.) Numbered on the bottom, these flashcards make organization a snap. Best of all, the flashcards sync with the Connect Phonics chapters, creating easily attainable layered learning.