1.- They split up in groups, studied and worked on a grammar topic.
2.- Once they were expert on the grammar topic, they explained it to their classmates.
3.- Then, They asked them to do the activities related to the grammar topic and helped them to do the exercises.
4.- After doing the activities, they wrote a rap using the Google searching bar to help them.
5.- Finally they danced and sang the rap.
Here you've got the final product.