Measure your students' knowledge and comprehension of the English language. They might already know a bit of English, so evaluating their skill level will help you plan your syllabus.
Understand the needs of your students and their reasons for wanting to learn English. This will help you frame your lessons with their goals in mind.
Start the English lessons by building up your students' vocabulary. Use aids such as flash cards to quiz your students.
Practice salutations. People learning English want to know basic greetings and their variations. Practice not only greetings, but responses, as well.
Use music in your lessons. Play English-language songs that are popular in the country you are in, and have the students translate them. The repetition of the lyrics in the chorus can help your students build their vocabulary. Translate Spanish-language songs into English, and have the students practice them to improve their vocabulary.
Go slowly over grammar basics; remind your students it will take time and practice to get a good grasp of it. English grammar is one of the most frustrating parts of the language to learn.
Encourage your students to speak English all the time. Tell them not to worry about making mistakes. If helpful, have your students use a puppet so is seems like the doll is speaking incorrectly, not the student.
Use videos and books. Watch American movies with Spanish subtitles until your students have a better grasp of English vocabulary. Encourage your student to read in English, as well. Also use magazine and books with pictures.
