Sure! Here’s a grammar activity where students can practice using comparatives and superlatives correctly:

Activity: “Comparatives and Superlatives Challenge”

Objective: To practice using comparatives and superlatives correctly in sentences.

Instructions: 1. Divide the class into pairs or small groups. 2. Provide each group with a set of sentence cards (around 6 cards per group). Each card should contain a sentence with a missing comparative or superlative form. 3. Explain that the students’ task is to complete the sentences by choosing the correct comparative or superlative form of the given adjective. 4. Set a time limit (e.g., 10 minutes) for the groups to complete the activity. 5. After the time is up, ask each group to read out their completed sentences and provide the correct answers. 6. Encourage the students to explain their choices and discuss any differences in meaning between the comparative and superlative forms used. 7. Finally, review the correct answers as a whole class and clarify any doubts or misconceptions.

Example sentence cards:

1. The Nile River is ____ (long) river in the world.
2. This book is ____ (interesting) than the one I read last week.
3. My sister is ____ (tall) than me.
4. This is ____ (difficult) exam I have ever taken.
5. The weather today is ____ (bad) than yesterday.
6. She is ____ (good) at playing the piano than her brother.

Note: You can create more sentence cards based on the level and needs of your students.