The document provides examples of adjectives with suffixes added to form comparative and superlative forms. It shows adjectives ending in y having the y changed to i and the suffixes added, such as happy, happier, happiest. It also shows adjectives with a short vowel sound before the y simply having the suffixes added, such as funny, funniest, funnier. The document asks what spelling rule is being demonstrated and what is done if an adjective ends in y or has a short vowel before the y.

1. What spelling rule will we use? big

2. What spelling rule will we use? big big bigger biggest

3. What spelling rule will we use? hot

4. What spelling rule will we use? hot hot hottest hotter

5. What spelling rule will we use? thin

6. What spelling rule will we use? thin thin thinner thinnest

7. What spelling rule will we use? heavy

8. What spelling rule will we use? heavy heavy heavier heaviest

9. What spelling rule will we use? happy

10. What spelling rule will we use? happy happy happier happiest

11. What spelling rule will we use? chilly

12. What spelling rule will we use? chilly chilly chillier chilliest

13. What spelling rule will we use? funny

14. What spelling rule will we use? funny funny funniest funnier

15. What spelling rule will we use? crazy

16. What spelling rule will we use? crazy crazy craziest crazier

17. What spelling rule will we use? lucky

18. What spelling rule will we use? lucky lucky luckiest luckier

19. What spelling rule will we use? What do we do when an adjective ends in y? What do we do if the adjective has a short vowel sound?