For example, as students are practicing reading skills such as digraphs (e.g. th, sh) or murmur diphthongs (e.g. ar, or, ir), the text will provide words using these skills as well as words containing skills previously learned. Decodable text offers another important feature in reading instruction. If a student is unable to read text at the decodable level after receiving instruction with fidelity, this indicates that the student may need more intensive instruction or more time for practice.