Week 5 Session: Classify, disagree, produce the missing rung

Apply the course's seven-rung ladder to performances from earlier weeks and your own work, then produce the one kind of evidence no prior week has supplied.

22 March 2027

Two choices in building this ladder#

Week 2 used recognition to mean a feeling of familiarity. Rung 1 now requires an observable recognition response; that is limited evidence, not the feeling alone. Application and connection were candidate performances in our plan. Here we judge them through the defined rungs—for example, explaining a new case or justifying a connection—rather than making them separate rungs.

Retrieve your Week 4 rule · 2 minutes#

Bring back the sentence “I counted that as stronger evidence because…” exactly as you wrote it. After learning the seven rungs, identify the rung your rule rewards and one performance it cannot distinguish. Preserve the original, then write a revised rule. If you have no record, use this provisional rule: “I counted a correct answer without the reference as stronger evidence.”

Purpose and preparation#

This self-guided activity applies Week 5’s lesson. Allow 25 minutes. All required material is quoted below, so you do not need Weeks 1–4 open, though it helps if you have read them. Work alone or with a partner; no lock, zip, paid tool or AI account is required. Sam, Theo, Priya and Rowan remain fictional teaching examples, not transcripts.

If you completed the deck’s classification exercise, reuse those answers here rather than starting over — this activity asks you to defend and extend them, not repeat them.

1. Classify five performances — 8 minutes#

For each performance below, write the rung it reaches and one sentence defending that choice against the most obvious objection to it. Do this before reading the deck’s or lecture’s worked responses, even if you have already read them once — writing your own placement is the record this activity keeps.

A. Sam (Week 1), reference open: “Wi-Fi and internet access are different.”

B. Theo (Week 2), from memory: “The slider pulls the two sides of teeth together and they interlock like fingers. Pulling it back down separates them again.”

C. Priya (Week 3), from memory: “A door lock has a barrel that turns when you put the right key in. Inside there are pins of different heights. The key pushes the pins up to the right heights, and then the barrel can turn and the door opens. A wrong key does not push them to the right heights, so it will not turn.”

D. Rowan (Week 4, condition b), to a novice, reference closed: “Every pin is a different length and every notch is a different depth. The right key lifts each pin by exactly its own amount, so all of them come flush with that join at the same moment.”

E. Rowan (Week 4, condition c), predicting an unfamiliar case: “I think it does not matter that the other five are fine. One is enough. Because the barrel is one piece… Would you even be able to tell this key from a totally wrong one, from the outside? I do not think you would.”

2. Produce the missing rung — 8 minutes#

No performance in section 1 reaches Challenge: nobody attacked one of these five accounts and got a response. That rung cannot be produced by working alone on your own explanation, however carefully — it needs a second party who has not already agreed with you.

Take one of your own saved answers from the Week 2 or Week 3 investigation — your zip, lock, or solo-route mechanism. If you have none saved, use Priya’s reconstruction in section 1.

Here is the attack: “Your account never says what happens if two parts are both slightly wrong at once — does the mechanism fail twice as badly, or is one wrong part already enough that a second one changes nothing?”

Write a response in three or four sentences. It may defend your original claim, revise it, or say precisely what you would need to check to answer the attack. Preserve your original explanation unedited; write the response as a separate, new piece of text.

3. If you are working with a partner#

Swap your section 1 placements before comparing them with the lecture’s worked responses. Find one performance you placed differently from your partner and argue it out loud for two minutes each way, without either of you consulting the worked response first. Then read the worked response together and note whether it resolved your disagreement or simply gave you both a third opinion to react to.

For section 2, your partner supplies the attack on your explanation instead of the one given above — a real objection is often sharper than a scripted one, and answering an unscripted attack is closer to what Challenge is meant to measure than answering a supplied one is.

4. Name the hidden assumption — 4 minutes#

Recall (rung 2) is defined as producing material “without the source in front of me.” Reconstruction (rung 3) is defined as rebuilding relationships “without the source in view.” The absence of a resource is written into both definitions, not incidental to them.

In your own words, in two sentences, state the assumption this implies about performances produced with a resource available, and name one performance from section 1 where that assumption changed how you scored it.

5. Keep a short record#

Working alone, you cannot independently verify whether your own Challenge response is doing real work or merely sounds like it is — that is the same limit Week 3 named for a self-administered reconstruction. Record the condition (“no partner; self-assessed”) rather than treating the record as more certain than it is.