Practice questions require students to retrieve information and apply it.

That difference matters.

Suppose a student reads a section explaining fractions five times. The material may begin to look familiar, but that does not necessarily mean the student can solve an unfamiliar fraction problem.

A practice question reveals whether the knowledge can actually be used.

The most effective learning cycle is:

Learn → Recall → Apply → Review → Reapply.

Practice questions also reveal misconceptions.

If a student repeatedly makes the same error, parents and teachers have evidence that the underlying concept needs attention.

However, practice questions should not completely replace explanation. If a student does not understand a concept, they may need instruction before attempting more problems.

Use textbooks and other learning resources for:

Understanding concepts and examples.

Use practice questions for:

Retrieval, application and diagnosis.

Then use feedback to determine what happens next.

A useful rule is:

Do not count questions. Analyse them.

Ten carefully reviewed questions can produce more learning than fifty questions completed without feedback.

For competitive exams, varied practice is particularly important. Students should eventually encounter problems presented in unfamiliar formats so that they learn to apply concepts rather than memorise the appearance of a question.

The goal is transferable knowledge, not textbook familiarity.