Here are some friendly little reminder posters to post for your students to recognize the various rules. I have five mini-posters total:
1. For most words, just add 's'
2. If it ends in ch, sh, s, ss, x, or z, add 'es'
3. Change the 'y' to 'ies'
4. Change the 'f' or 'fe' to 'ves'
5. If there's a vowel before the 'y', just add's'
Includes one poster with words that are exceptions to the rules.