The CS 70 Course Bundle — original practice exams & exam DNA
The proof-based rite of passage.
Proofs, discrete math, and probability — taught as decision rules.
Course Bundle — the full rehearsal system
Exam DNA, mock exams, sprint, protocol, and the recall deck — everything for this course in one checkout.
Exam DNA
The course's real question patterns, decoded.
Mock Exam
Real format, rubric-style solution key.
Sprint
Day-by-day plan keyed to the term calendar.
AI Protocol
Use AI tutors without trusting unverified answers.
Recall Deck
150 original cards · 8 topics · Anki-importable + printable.
Why this course hurts
CS 70 doesn't lack effort. It lacks a system.
- First proof-based course: you don't just solve problems, you must convince a grader.
- Probability arrives at the end, when you're already exhausted from midterms.
- RSA, modular arithmetic, and polynomials are easy to mix up under pressure.
- Partial credit is stingy — one gap can fail a whole proof.
What's in the Course Bundle
Five products. Each one earns points.
Exam DNA Report
The archetype map for CS 70 exams: proof templates (induction, pigeonhole, contradiction), modular arithmetic and RSA, polynomials, countability, and probability modeling.
Mock Exam Pack
Two original full-length mocks in the proof-heavy 70 format — with model proofs written the way graders want and rubric-style partial-credit keys.
14-Day Exam Sprint
A day-by-day plan that front-loads proof fluency and refuses to leave probability for the final week.
AI Study Protocol
AI is fluent but unreliable at proofs: the prompting patterns that get useful practice, and the verification drills that catch plausible-but-wrong steps.
Recall Deck
150 cards: proof triggers, mod-arithmetic facts, key distributions, and decision rules. Anki-importable and printable.
The trap list
What actually sinks CS 70 students
- 1
Writing “obvious” steps the grader refuses to accept.
- 2
Setting up probability models with the wrong sample space.
- 3
Mixing up Bayes' rule denominators under time pressure.
- 4
Leaving probability for the final two weeks of the semester.
Look inside
A spread from the Exam DNA
Every Exam DNA follows this layout: the recall schedule you'll run, the high-yield concepts explained as decision rules, the traps called out before they cost you points, and practice designed to be done from memory.
Page shown from the CS 61A Exam DNA — all twelve courses use the same format.
Get the 10-page sample free
Pair it with
The CS 70 Recall Deck
- 150 original cards across 8 topic clusters — concepts, decision rules, and worked-question prompts.
- Anki-importable TXT/CSV files + a printable PDF version for paper reviewers.
- Built for spaced repetition — card order and tags follow the sprint's recall plan.
- 3-minute import guide included (Anki and Quizlet).
CS 70 FAQ
Is this specific to how the course is actually taught?
The DNA report covers the course's stable core — the exam archetypes, the point economy, the decision rules. For professor-specific details it routes you to the course's own public materials (mapped in the Free Stack section of your DNA Report), and the Sprint adapts in minutes.
Which products do I actually need?
The DNA report tells you what the exam asks; the mock pack makes you rehearse it; the deck makes it permanent. Most students take the Course Bundle — all five products are $56 separately, and the bundle is $39 — the whole course for the price of the Mock Exam Pack plus $20.
How do I import the deck?
Any flashcard app that imports text (Anki, Quizlet). Each deck ships as Anki-importable TXT/CSV plus a printable PDF, with a 3-minute import guide included.
What if it doesn't help?
14-day refund, no questions asked. We'd rather refund you than keep a dollar that didn't earn itself.
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