Are you teaching diphthong sounds? These oi word, oy word, oi word and oy word building cards are perfect for your Grade 1 and Grade 2 phonics lessons. These decodable word building cards can be used to consolidate early phonics skills such as segmenting, blending and word building of words with diphthong spellings oy/oi and ow/ou.Over 45 oi and oy word cards, and 65 ow and ou word cards are included in three different formats:Cards with just picturesWord cards (match to the pictures)Word and pi