Challenge 1: An Angular, Rough Curve From Clicking Alone — Solution Walkthrough

The answer:

Clicking without dragging places a corner point — a point with no
curve handles at all, where the path meets at a sharp angle on either
side. Per this chapter's own material, placing several corner points
around where a smooth curve should be produces exactly the angular,
faceted result described here, since none of those points have the
handles needed to actually bend the path smoothly.

What the beginner should have done instead:

Clicking and dragging at each point along the curve places a smooth
point instead, pulling out curve handles that control how the path
flows through that point. A small number of smooth points, with their
handles adjusted to match the intended curve, produces a genuinely
smooth result rather than an approximation built from straight
segments meeting at sharp corners.

Why this matters beyond just looking better:

Per this chapter's own warning box, more corner points don't get closer
to a smooth curve — they just add more sharp angles. The fix isn't
adding more points; it's using the right point type in the first
place.

WHY THIS WORKS AS AN ANSWER
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This exercise checks that an angular result is correctly traced back
to using corner points (click only) instead of smooth points (click
and drag) where a curve was actually intended.