This website has five courses for teachers and parents who want to teach English to Chinese students.   All of the courses have 25 worksheets, except ECS1 which has 20.  The worksheets are provided in PDF format so they can be printed on A4 paper or displayed on laptop computers, tablets, and cell phones.  Each course has 5 sample worksheets that can be used right away, or you can download a ZIP file that contains 20-25 worksheets and some supporting materials.  All of these materials are FREE.