By the age of 3, Matilda could likely do the following:
1. Walk and run independently 2. Speak in short sentences and have a vocabulary of several hundred words 3. Recognize and name common objects and animals 4. Follow simple instructions 5. Use a spoon and fork to feed herself 6. Identify colors and shapes 7. Play with toys and engage in imaginative play 8. Begin to understand concepts like counting and sorting 9. Show preferences for certain activities, toys, and foods 10. Begin to show signs of independence and assertiveness.