Share Print Welcome to the Oxford Primary Skills Teacher's Site, providing you with extensive teaching notes which include an easy to follow answer key for each exercise. The teaching notes will guide you carefully through each level of the Reading and writing series to help you make the most of each unit. All the reading texts are available on the Audio CD. Resources Teaching notes including answer keys Here you can access the teaching notes, including answer keys, for each level in the Reading and Writing series. You can also choose to save them or print them out, unit by unit.