This fun back to school letter to your students is "chalk" full of homonym errors. ;)
Let your students work through the letter to find and circle all the errors, then use the second page to rewrite the letter correctly. Students can work in pairs or small groups to use this activity as a first day collaborative activity, or students can work individually for a first day diagnostic for writing.
An answer key is also provided.
See my other back to school resources HERE.