I got these games/ ideas out of an old book I bought when I was teaching in the classroom. Let's Play Games in Spanish.
1) ¿Qué hay en la caja? (What's in the box)
This is super easy to set up. All you do is find objects for about 10 or so vocabulary words you want your students to practice. Review these items with your students before beginning the game. Then put all the objects out of sight, behind a desk, in a bag... Choose one object without the students seeing and put it in the box.
The leader/ teacher asks one person at a time: ¿Qué hay en la caja?
Student responds with a guess: ¿Es una cuchara?
Respond: No, no es una cuchara?
Then ask another student: ¿Qué hay en la caja?
Continue this way until someone answers correctly. That person then chooses an item to hide in the box and becomes the leader.
2) This game is called "Los animales grandes y los animales pequeños"
This game may be played with two teams but you can tailor it so that it works with your kids.
You will need pictures of the following animals: lion, giraffe, dog, duck, lamb, elephant, mouse, cat and any other animal you want to add. You could use stuffed animals instead but be prepared that your stuffed animal mouse might be bigger than your elephant for example.
The leader will ask various questions about the animals to individual students in turn, one team at a time. If the student answers correctly they score a point for their team. If the answer is incorrect the other team gets a chance to answer.
Here are some examples of questions to ask:
¿Cuántos animales grandes hay?
¿Cuántos animales pequeños hay?
¿Cómo se llaman los animales grandes?
¿Cómo se llaman los animales pequeños?
¿Cuál de los animales es más grande que todos?
¿Cuál de los animales vive en la selva?...etc.
What other questions could you ask?
How could you tailor this game for just 2 students or even one?