P21

P21 is a four-level phonics series for young learners. With the P21 App, you can listen to audio tra

Phonics for 21st Century Kids (P21) 是一套四本、專為孩子量身打造的自然發音教材。P21 App則是專為P21課本開發的應用程式，裡面包含所有教材中會使用到的資源。