Question

Before commencing instruction, the teacher should know:

• A. The previous knowledge of the students.
• B. Know the parental background of the students.
• C. Know the marks secured in the earlier examination.
• D. Know the height and weight of the students.

Hint:

Teaching should proceed from known to unknown, simple to complex, and concrete to abstract.

Answer 1

The Correct Option is A

Step 1: Understand the question.
Before starting a lesson, what should the teacher know first about the students?

Step 2: The learning principle.
Learning works best when new ideas are tied to what the student already knows. New knowledge sticks when it links to old knowledge.

Step 3: Why prior knowledge helps.
Knowing what students already understand lets the teacher choose the right method, skip needless repetition, build ideas step by step, and clear up wrong ideas.

Step 4: Check the other options.
Parental background, earlier exam marks, and height or weight do not tell the teacher where to begin the lesson. They are not the starting point for instruction.

Step 5: Pick the key thing.
The most useful thing to know before teaching is the previous knowledge of the students.

Step 6: Final answer.
The teacher should know the previous knowledge of the students.
\[ \boxed{\text{The previous knowledge of the students.}} \]