It really helps kids to learn a word/sentence in different contexts, so I wanted to give you some ideas of what contexts you could use. I will use the tree poster from Unit 1 for this example:

1.- Real life: Go through the audio recordings right by a real tree.

2.- Printed image: Go through the audio recordings as you point at the parts on the poster.

3.- Dramatic play: Dress your child or a doll up like a tree and go through the audio recordings as you point at the tree parts on your child/doll.

4.- Toys: Use legos to make a tree or use a plastic tree to point at the tree parts as you listen to the audio.

5.-Imagination: Ask your child to imagine there is a tree in the living room and "draw" with your finger the shape of the tree. Then go through the audio as you point at the imaginary parts. (I only recommend this context once your child is very familiar with the audio and tree parts.)

You can choose any of the first 4 ideas listed above to introduce the lesson's words/sentences, and then use any of the other ones to review. You can review the vocabulary as many times as you want! Just like when you taught English to your child, you taught him how to say tree and then would say the word whenever you saw, heard or read the word “tree.” You can do the same with Spanish! Whenever you are reminded of something you have already learned, pull out the audio recordings and practice it again. That way you keep reinforcing what you already learned.

 I like to introduce vocabulary with a real life or printed image and then review with any of the contexts listed above. You don't have to do more than one context a day, it can be too much. Instead use it to review/practice what you have learned throughout your Spanish learning journey.