A note for the parent

What your child had to do in this Circles problem

This was not a watch-and-copy exercise. The student had to make 4 small mathematical decisions and correct any wrong turns before moving forward.

The skill being built

Reasoning, not answer recognition

Use radius ⊥ tangent to form a right triangle, then use the fact that the perpendicular from the centre bisects the chord.

The mistake we watch for

A wrong answer is useful evidence

Stopping at the half-chord

AP = 4\text{ cm}

instead of doubling it to

AB = 8\text{ cm}

What happens when a step goes wrong?

The choice is crossed out

The app does not pretend the mistake did not happen.

The reason is explained

The child sees the exact misconception behind that choice.

The child tries again

The app guides, but the student still makes the next decision.

If this teaching style helps

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