How do I teach the concept of prepositions?

Concept of ON

Place an object on top of another object, and then describe it's position with reference to the object it is placed on top of. E.g. "The ball is ON the table". 

Stress on the word ON while speaking the sentence aloud. Use Avaz to select and include the word ON, while simultaneously speaking the sentence aloud. 

Concept of UNDER

Concept of IN

Concept of IN

Concept of BEFORE and AFTER

Concept of SAME and DIFFERENT

Concept of Odd one out

Concept of BEHIND and IN FRONT OF

Concept of INSIDE and OUTSIDE

Related articles: 

Prepositions Freebie - By Susan Berkowitz