This activity uses common classroom supplies to practice prepositions of location. Start by having students cut out the school supplies on the grid to use as playing pieces. You can practice by orally giving directions about where to put the pieces ("Pon la mochila en el centro de la mesa," etc.) and having students follow directions by placing their pieces according to your commands. This can get as complex as you wish for a challenge!
You can also have students pair up to give each other commands instead, which is a great way to get kids speaking and listening with each other. You could also have students fill in the blanks on the worksheet and trade with a partner at the end of class, leaving the partner to glue or tape the pieces on to the table one last time for homework (following the directions they were given in writing by their partner).
This is a flexible activity that allows students to add a little TPR to their practice to help absorb location words more naturally than by rote memorization alone.