Click here and watch the video.
Click on these links to read the rules and see more examples:
Prepositions of Place: at, in, on
¿CUÁNDO USAR LAS PREPOSICIONES DE LUGAR: “IN”, “ON” Y “AT” EN INGLÉS?
Uso correcto de las preposiciones In At On en Ingles.
Prepositions in/on/at (of place) (Listen)
Do these exercises:
Complete with in, at or on
Prepositions of Place: At, In or On? Exercise 01
Prepositions of Place: At, In or On? Exercise 02
To learn more prepositions of place watch In On Under - Kids English Kindergarten Songs and play Where is the mouse? (It's easy and fun!)
Revise vocabulary here (You can listen to the words!)
Revise grammar here