Concept:
Students differ in their intelligence, aptitude, interests, learning styles and pace of learning. Effective teaching recognizes these individual differences and adapts instruction accordingly.
Step 1: Understand the purpose.
Considering individual differences helps teachers provide appropriate learning experiences for every student.
Step 2: Analyse the options.
• Treat all students exactly the same -- Ignores individual needs.
• Adopt teaching according to varying abilities and needs -- Correct. \checkmark
• Complete the syllabus quickly -- Not the objective.
• Compel everyone to secure first division -- Unrealistic and unrelated.
Step 3: Final conclusion.
Hence, the correct answer is
\[
\boxed{\text{To adopt teaching according to varying abilities and needs}.}
\]