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THE C-FACTOR SERIES · 8 BOOKS · CARS FREE

Mechanism-first.
MCAT ready.

Every MCAT subject. Every mechanism. One cohesive series built on the principle that understanding the why is the only thing that survives exam pressure.

No tricks. No shortcuts. Mechanism over memorization AAMC-aligned Anki deck Free sample, always
Bit - your reasoning engine
BITYour reasoning engine
7
Subject books
~2,270
Pages of content
5,600+
AAMC-tagged Anki cards
92
Chapter lectures (video soon)
0
Memorize-and-forget facts
★ ENTIRE COURSE · FREE · NO LOGIN

The full MCAT CARS course - free

The one section you can't memorize. A complete course: the four-move passage method, all 11 question types, the wrong-answer archetypes, an elimination protocol, a six-week program, and worked AAMC-style passages. This is the C-Factor method applied to reasoning - read it and see how we teach.

START THE CARS COURSE → DOWNLOAD PDF ↓
NEW · INTERACTIVE · FREE

The Living Periodic Table

Hover any element to see its story and watch its group and period light up - then click for a deep dive into its role across medicine, chemistry, physics, engineering, and nature. All 118, in your browser.

EXPLORE THE TABLE →
FREE REVIEW BOOK · NO LOGIN · NO PAYWALL

The Bit by Bit MD MCAT Review Book

A full MCAT review book - free, in your browser, no email required. Discriminators, clinical bridges, and mechanism-first explanations across every section. Read it before you decide if the C-Factor Series is right for you.

READ FREE IN BROWSER → GET STUDY SCHEDULE ↓
FROM THE BOOKS · ROTATES DAILY

C-Factor fact of the day

A real discriminator pulled from across the seven books - a new one every day. This is the kind of look-alike the MCAT loves to test.

- ⚡ DISCRIMINATOR
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THE SERIES

Eight books. Every MCAT section.

Six subject books plus the Final Review cover every science domain end-to-end - discriminators, why-boxes, clinical bridges, and MCAT-format passages. Book 8 is the full CARS course, free.

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Book 1 · Biology
Amino acids and proteins, enzymes, cell biology, genetics, gene expression, microbiology, immunology, and evolution. The foundation everything else builds on.
B/B · C/P374 pp · Preview →
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Book 2 · General Chemistry
Atomic structure, bonding, stoichiometry, thermodynamics, kinetics, equilibrium, acid-base, and electrochemistry. Every formula derived from first principles.
C/P354 pp · Preview →
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Book 3 · Organic Chemistry
Nomenclature, stereochemistry, substitution and elimination, alkene reactions, carbonyl chemistry, biological molecules, spectroscopy, and separation methods.
C/P371 pp · Preview →
Book 4 · Physics
Kinematics, forces, work and energy, fluid dynamics, waves and sound, electrostatics, circuits, light and optics, and nuclear physics. Physiology examples throughout.
C/P358 pp · Preview →
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Book 5 · Psychology & Sociology
Biological foundations of behavior, sensation and perception, learning and memory, cognition, social psychology, health disparities, and social inequality.
P/S355 pp · Preview →
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Book 6 · Biochemistry
Amino acids, protein structure, enzyme kinetics, carbohydrate and lipid metabolism, nucleic acids, vitamins, DNA replication, transcription, and translation. Highest-yield MCAT book.
B/B · C/P418 pp · Preview →
Book 7 · The Final Review · FREE
High-yield compression of every subject: discriminator index and test-day anchors. Read this two weeks before test day. Free, in your browser - no login.
All Sections · FREERead now →
🧭
Book 8 · CARS · FREE
The Reasoning Engine - a complete CARS course. Four-move passage method, 11 question types, wrong-answer archetypes, a six-week program, and worked AAMC-style passages.
CARS · FREEStart course →

★ The Complete Six-Book Set

Books 1–6 - the full ~2,220-page mechanism-first set. Book 7 (The Final Review) is free, and the 5,600+ card AAMC-tagged Anki deck is included. Video lectures for every chapter are coming soon, also free. Buy once, yours forever.

✓ Instant PDF download ✓ Secure Payhip checkout ✓ Anki deck included ✓ Read Book 7 free first
$65USD · ONE-TIME
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THE METHOD

Four moves. Every concept.

Every chapter runs the same four moves so you internalize the pattern, not just the fact. By the final book these should feel like reflexes.

DISCRIMINATOR

The single feature that separates two confusable concepts. Flagged in every chapter. Tested directly on the MCAT. Never hunt for it again.

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WHY-BOX

The physical or biochemical reason the fact is true. If you know the why, you reconstruct the what under pressure. Mechanism survives the exam. Memorization does not.

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CLINICAL BRIDGE

From page one of Book 1, every mechanism connects to a disease, a drug, or a clinical scenario you will see in medical school. The bridge is always explicit.

🎯

HIGH-YIELD ANCHOR

One-liner facts with the highest MCAT frequency, pulled directly into the Anki deck as cloze deletions, tagged by AAMC content category.

THE ANKI ECOSYSTEM

5,600+ cards. Every concept tagged.

The Anki deck is not a side product. It is the books converted into active recall, with a tag architecture that maps directly to the AAMC content outline. Just $5 on its own, and included free inside the $65 set.

EVERY CARD CARRIES THIS FULL TAG SET
MCAT::B_B AAMC::B_B::1D_Enzyme_Kinetics Course::Biochemistry Type::Discriminator Skill::Compare_Contrast Phase::MCAT_Prep Difficulty::Intermediate

Filter by MCAT section, AAMC content category, pre-med course, card type, or difficulty. No ch0 orientation cards. Chapter objectives card included per chapter.

.APKG FORMAT · ANKI 2.1+ · YOURS FOREVER

One combined deck, all 5,600+ cards. Import in one click: File → Import. Already getting the $65 set? The deck is included free - no need to buy it here.

$5USD · ONE-TIME
GET THE DECK ↗ or free in the $65 set →
HOW TO USE THE DECK · STEP BY STEP
STEP 1 · GET ANKI

Download Anki free at apps.ankiweb.net. Desktop (Mac/Windows/Linux) is best. There is also AnkiMobile for iPhone ($25, one-time) and AnkiDroid for Android (free). All sync via a free AnkiWeb account.

STEP 2 · IMPORT THE DECK

After purchase you get the .apkg file from Payhip. In Anki desktop: File → Import and select the file. The deck and all cards load instantly. Choose the combined deck (all books) or individual book decks.

STEP 3 · FILTER BY MCAT SECTION

In the card browser, filter by tag. Studying B/B sections? Type tag:MCAT::B_B in the search bar. Studying for Gen Chem specifically? Use tag:Course::General_Chemistry. You can combine tags to narrow further.

STEP 4 · USE THE TAG SYSTEM

Every card has layered tags. Type::Discriminator = compare-and-contrast cards. Type::Mechanism = why-box cards. Type::Clinical_Bridge = disease application cards. Type::Practice_Question = full MCAT-style MCQs.

STEP 5 · STUDY SCHEDULE

Set Anki to 20-30 new cards/day max. Do not skip the review pile - that is where retention is built. Study new cards alongside the corresponding book chapter. Use Difficulty::Foundation cards first, then Difficulty::Intermediate, then Difficulty::High_Yield.

STEP 6 · CLOZE VS BASIC CARDS

Basic cards show a question on the front, explanation on the back. Cloze cards blank out a key value or term (like Km = [S] at {{c1::Vmax/2}}) - fill in the blank and flip to check. Both types are included and tagged identically.

QUICK TAG REFERENCE · PASTE THESE INTO ANKI'S BROWSER SEARCH
tag:MCAT::B_B - Biological & Biochemical Foundations
tag:MCAT::C_P - Chemical & Physical Foundations
tag:MCAT::P_S - Psychological & Social Foundations
tag:Type::Discriminator - compare-contrast cards only
tag:Type::Mechanism - why-box cards only
tag:Type::Clinical_Bridge - clinical application cards
tag:Difficulty::Foundation - start here if you are new
tag:Difficulty::High_Yield - MCAT-frequency MCQ cards
tag:Course::Biochemistry - Biochem course cards only
tag:Phase::MCAT_Prep - MCAT-phase cards across all books
THE FOUNDER'S RATIONALE

Not a test-prep company.

We do not promise tricks, guaranteed scores, or secret strategies. We optimize for understanding the system that generated the question - not just the answer.

THE PROBLEM

Students spend years learning biology, chemistry, organic chemistry, physics, and biochemistry - and never see how they connect. Education becomes fact after fact instead of principle to mechanism to application. Knowledge accumulates. Understanding does not.

Fact → Fact → Fact → Fact
THE SOLUTION

Science is not a collection of subjects. It is a collection of connected principles. The C-Factor Series teaches the mechanism and lets the fact follow from it. A student who understands systems can solve unfamiliar problems. A student who memorizes answers cannot.

Principle → Mechanism → Application
C
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CONNECTION

Every concept should connect to others. Physics becomes physiology. Chemistry becomes pharmacology. Biochemistry becomes disease.

C
⚙️

CAUSATION

Understand why before memorizing what. The mechanism is what survives exam pressure. The fact alone does not.

C
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COMPREHENSION

Understanding should precede memorization. If you see the structure of the idea, the details become obvious.

C
📈

CONTINUITY

Learning builds vertically, not horizontally. Each book adds a layer. The Final Review is not a repeat - it is the synthesis.

Most students do not fail the MCAT because they are lazy.

They fail because they cannot separate mechanism from memorization under pressure.

The Complete C-Factor Set · $65

Books 1–6, ~2,220 pages, mechanism-first. Book 7 and the study schedule are free, the 5,600+ card Anki deck is included, and video lectures are coming free too. Read the free book first - no pressure.

✓ Secure Payhip checkout ✓ Instant PDF download ✓ No account needed ✓ Yours forever
Read the free book first →
Bit by Bit Pedagogy is an independent educational platform. The C-Factor Series is a pre-med and MCAT review resource built on mechanism-first pedagogy. Not affiliated with, endorsed by, or connected to the AAMC, NBME, USMLE, or any exam body. Materials are for educational use only and do not guarantee score outcomes. © 2026 Bit by Bit Pedagogy. All rights reserved. Terms & Copyright