Critical Thinking Hub

Your cross-module control center for the 5 reasoning modules. The streak counts days you complete at least one Daily challenge. The personal deck uses SM-2 spacing — stars from any module land here and get scheduled for the day they would have started to fade.

Current streak

0days

Longest streak

0days

Due to review

0cards

Today's mission · 0/5

Personal review deck (SM-2 scheduled)

⭐ any flashcard in any module — it lands here

Total: 0 Due today: 0 Mature (≥21d): 0

⭐ No starred cards yet. Open any module's Flashcards view, hit the ★ Save button on a card, and it lands here.

SM-2 keeps your starred cards alive by scheduling each one for the day it would have started to fade.

Your deck (0)

Cross-module final exam

25 questions · 5 per module · randomized

The full test of everything taught across the 5 critical-thinking modules. 5 questions drawn at random from each module's quiz bank, then shuffled. Try to finish without consulting Learn — that's retrieval practice applied to itself.

Score: — Q: 0/25 Best ever: —

Teacher portal

course pack · rubrics · printable bundles

For instructors

4-week course pack

Print-ready outline below. Each week pairs one or two of the critical-thinking modules with a hands-on practice block. Designed for one 45-min class session per topic, plus daily 10-min reasoning homework in between.

Worksheets

Worksheet bundle

Each module's Teacher view has a 12-question worksheet with answer key. The links below open each module directly to its Teacher tab — use "Regenerate questions" to get a fresh shuffled copy, then "Print worksheet".

Assessment

Cross-module rubric

Use to evaluate students' integrated reasoning practice. Each row scored 0–4 = 24 total.

Biases: can identify at least three biases by name in real-world media; states the matching countermeasure.
Fallacies: can diagnose 5+ named fallacies in printed argument samples and write a one-sentence rebuttal each.
Data: runs the 5-step chart audit unprompted; flags ≥3 axis / sample / window / comparison issues in a wild-caught chart.
Probability: correctly applies Bayes to a base-rate problem; reproduces Monty Hall reasoning verbally.
Logic: can fill a 4-variable truth table and explain why "affirming the consequent" is invalid using a counterexample.
Integration: can name one bias, one fallacy, one chart trick, and one probability error in a single news segment without prompting.

Key research & citations

Behind the curriculum

Tversky & Kahneman (1974) — heuristics & biases; anchoring experiments.
Kahneman (2011) — Thinking, Fast and Slow: System 1 / System 2.
Aristotle, Sophistical Refutations (4th c. BCE) — first fallacy taxonomy.
Tufte (1983) — The Visual Display of Quantitative Information; chartjunk & data-ink ratio.
Cowan (2001) — working memory ≈ 4 ± 1 chunks.
Bayes (1763), posthumous — foundation of conditional reasoning under uncertainty.
Frege (1879), Russell & Whitehead (1910–13) — formal propositional & predicate logic.

Noduly · Critical Thinking 4-Week Course Pack

One 45-min class session per week plus daily reasoning homework. Sized for high-school or first-year undergraduate.

Week 1

Cognitive BiasesSystem 1 vs 2 · anchoring · base-rate neglect · confirmation · sunk-cost · availability.

In-class: run the anchoring experiment with two halves of the class. Daily homework: spot one bias in your own thinking each day and write the countermeasure used (or that should have been).

Week 2

Logical FallaciesRelevance · structural · ambiguity · presumption · causal · emotional fallacies.

In-class: read three editorial paragraphs aloud; class labels each fallacy and writes a steelman. Daily homework: find one fallacy in any media, write the rebuttal in one sentence.

Week 3

Reading Data Critically + Probability Intuition5-step chart audit · per-capita vs total · cherry-picking · Bayes / base rates · Monty Hall.

In-class: live truncated-axis demo on the projector; do the Bayes table for a 1%-prevalence test together. Daily homework: audit one chart from the news per day.

Week 4

Formal Logic BasicsConnectives · truth tables · valid forms (MP / MT / DS / HS) · invalid look-alikes · De Morgan · ∀/∃ preview.

In-class: build the four valid-form truth tables on the board. Translate three real-world arguments to symbols and check validity in the live builder. Final: take the cross-module exam in the hub.

Assessment — Use the cross-module rubric above. Suggested split: weekly worksheet quizzes (4 × 10% = 40%) + a "wild-caught fallacy" portfolio (20%) + cross-module final exam (40%).

Jump into a module

5 live · all share this hub