Gamification poured into every lesson. Read, Listen, Speak Each lesson includes a variety of speaking, listening, translation, and multiple choice challenges. In-Lesson Grading Instantly see which answers you get correct. When you miss a challenge, we'll quickly show you how to improve. 6 Streak Count Duolingo motivates you to stay on track by recording how many days in a row you spend learning a language. Hearts Hearts keep your lessons alive! You lose them when you answer incorrectly. When you're out of hearts, start over and try again.