The Simple Past Tense is expressed with the past form of the verb. It refers to, an action/actions which occurred in the past, or a completed action, or a past status.
Tania went to the dental clinic on Saturday. (Action occurred in the past)
I finished my assignment before coming to college. (Completed action)
Raian was a journalist. (Past Status)
** You can download the worksheet given below. A Worksheet is given below which you can download and give it to your students/children.