Please use the Class Zone links on the far right column to quiz yourself on the focus of each Etapa.
A quick search for ANY of the grammar concepts below in the links on the right or through Youtube, quia, kahoot, quizlet, etc... will provide you with information and practice.
Unidad 1 Etapa 1 Vocabulario (U1E1)
Unidad 1 Etapa 2 Vocabulario (U1E2)
Unidad 1 Etapa 3 Vocabulario (U1E3)
Unidad 2 Etapa 2 Vocabulario (U2E2)
Unidad 2 Etapa 3 Vocabulario (U2E3)
Unidad 3 Etapa 3 Vocabulario (U3E3)
Unidad 4 Etapa 1 Vocabulario (U4E1)
Unidad 4 Etapa 2 Vocabulario (U4E2)
Unidad 4 Etapa 3 Vocabulario (U4E3)
Practice the self-check quizzes under each Unidad & Etapa link.
Check out Student Activities for practice.
Sudyspanish.com is a great resource. They offer free lessons, activities and quizzes. You do have to pay to access the entire site but I included a few links that will take you to direct grammar lessons for your convenience.
To study a certain grammar lesson, search within the studyspanish.com website using the grammar concept found under the vocabulary lists on the left of this page. After reading, take the basic quiz to test your comprehension.