Teaching grammar is hard. Sometimes you can make it simple with a spoon full of sugar… and music. I like to use music as a classroom management tool, but also to teach practical grammar structures. Add a hands on activity like foldables, and your students will be engaged.
But of course, direct instruction is inevitable. The following presentations were done using Pear Deck to make the lesson more interactive.
Also, for high schoolers, I try not to make lessons more than 10 minutes long or I lose them. Divide your lessons in smaller chunks, students will absorb more information that way.
You will see some examples here, but you can also take a look at my foldables page, so you can see examples of how to use foldables for the World Language classroom.