Scenario I: In an Elementary School, we observed a dialogue between the teacher (T) and his students (Ss):
T: Hello, class!
Ss: Hi, teacher.
T: Today, I am going to introduce a new verb tense to you: the simple past. The simple past tense is used to describe actions or events that happened in the past. For example, If I say, “I walked to school yesterday,” what tense am I using?
(The teacher writes the sentences on the blackboard)
Ss: It is easy. It is simple past.
T: Ok, very good. What happened to the verb in the sentence?
Ss: You added “-ed.”
(The teacher underlines “-ed” in a different color)
T: Great. So, to change from the present tense to the past tense, with regular verbs, we simply add “-ed” to the verb. If the verb ends in “-y” preceded by a consonant, we drop the “-e” and add “-ied”, ok? Now let’s practice. Change the verbs below from present to past tense.

Scenario II: An English teacher (T) introduces the simple past tense to a group of 7th-grade students (Ss, S1, S2).
T: Hello, class!
Ss: Hello, teacher.
T: What day is today?
Ss: It is Monday.
T: Excellent. So, can you tell me what you did yesterday?
S1: I watch a movie on TV.
T: You watched a movie on TV, how nice.
S2: I played soccer with my friends.
T: Great. Now let’s practice. Sit in pairs and talk to your friend about things you did last week.
(The teacher observes their performances and assists them when required).

We can state about scenario I and scenario II, respectively, that