The phonogram /ch/ has three sounds that are in many commons words: chicken, school, chef.
Use this resource to introduce and model the three sounds.
It aligns with First Grade Teacher Guide - Academic Day 9 and can be used to model the concept, and coach students in whole class or small groups.
This could be used as a follow us task for Independent Practice in small groups, or it could be used as a tutoring resource.
Students could mark the words as per The Spalding Method, and then read for spelling and read for reading.