Improve your Duolingo Spanish Experience! I created these lesson sheets for my K-4 students but they can be used by nearly anyone. each of the maximum 10 words per lesson is printed on the lesson sheet. During the lesson, students write in the English meaning. Research shows that writing longhand increases retention and recall. I print these 2UP and cut them apart. Students are self-paced and retrieve the sheet from the file and glue it into their composition books. Books stay in my classroom.