Geometry A hub · 01.04

Discussion-Based Assessment

A short prep card. The conversation itself is with your instructor, not here.

What this is

01.04 is 30 points. You contact your instructor and talk through what you have learned so far so they can tell you are ready to keep going.

This page is a packing list. It is not a fake oral exam and it will not grade you. Do not treat the buttons as the DBA.

Read the Canvas rubric before you call. The criteria live there, not here.

Be ready to explain, not recite

Have one concrete example for each of these, in your own words:

  • Undefined vs defined. Point, line, plane vs segment, ray, angle, circle.
  • Postulate vs theorem. One you accept, one you prove.
  • Copy a segment vs bisect a segment. What stays the same on the compass.
  • Copy an angle vs bisect an angle. Where the second arc is swung from.
  • Parallel as a copied angle. Perpendicular as two hits on a line, then two more arcs.
  • Hexagon vs triangle vs square inside a circle. Radius walk vs two diameters.

If they ask “how do you know the construction is valid,” the honest answer is: the compass copied a length, so those lengths are congruent by construction, not because a ruler said so.

One sticky spot

Canvas also has a written backup prompt if your instructor uses it: which idea in this module was hardest, what you did to clear it up, and one real-world picture of it. Three paragraphs if that version is assigned.

Pick the idea you actually had to slow down for. A construction step you mixed up (copy vs bisect, or hexagon vs square) is a better story than a vague “geometry is hard.”

Bring a question. The lesson says this conversation is a good time to ask one.

After you talk

Submit 01.04 in Canvas with:

  1. The date you contacted your instructor
  2. A list of topics you discussed

Do that on the day, while you still remember the list. The points are on the conversation plus that submission, not on this hub page.