1. Duolingo (https://www.duolingo.com/)
   • Duolingo offers a popular language learning platform with gamified lessons for various languages, including Portuguese.
   • It provides interactive exercises that cover vocabulary, grammar, listening, and speaking skills.
   • The platform tracks your progress and adapts the lessons based on your performance.
2. Memrise (https://www.memrise.com/)
   • Memrise offers a range of user-generated courses for learning Portuguese.
   • It focuses on vocabulary building through interactive flashcards, audio recordings, and mnemonic techniques.
   • The platform encourages active learning through repetition and reinforcement.
3. Portuguese Lab (https://www.portugueselab.com/)
   • Portuguese Lab provides a collection of free online lessons, podcasts, and exercises for Portuguese learners.
   • It offers interactive lessons with audio recordings, transcripts, and exercises to practice reading, listening, and pronunciation.
   • The website covers various topics, from basic grammar to idiomatic expressions and cultural insights.
4. Conjuguemos (https://conjuguemos.com/)
   • Conjuguemos is a website that focuses on verb conjugation practice for multiple languages, including Portuguese.
   • It offers interactive exercises where you can practice conjugating verbs in different tenses and forms.
   • The exercises provide immediate feedback, allowing you to track your progress.
5. BBC Languages – Portuguese (http://www.bbc.co.uk/languages/portuguese/)
   • BBC Languages provides a Portuguese learning section with interactive resources.
   • It offers vocabulary, grammar, and pronunciation exercises, along with cultural insights and video lessons.
   • The website covers beginner to intermediate levels and provides a comprehensive introduction to the language.

These resources offer interactive materials that can help you practice and improve your Portuguese skills. Explore these websites and find the materials that suit your learning style and proficiency level. Remember to practice regularly and combine these interactive resources with other learning methods, such as speaking with native speakers or practicing with language exchange partners, to further enhance your language learning experience.