A Smarter Way to Prepare for the LSAT

Logical Reasoning, Reading Comprehension, and Argumentative Writing practice, explanations for every answer choice, and Casey, your AI study partner, built in.

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Know Why Every Wrong Answer Is Wrong

LSAT points hide in the choice that is almost right. Every explanation walks through the right answer and each of the four that aren't.

LOGICAL REASONING · SECTION 2
Question 9 of 25
Flaw21:40
Editorial: Over the past decade, towns that added protected bike lanes saw retail sales rise by an average of 14 percent, while sales in towns without them stayed flat. Clearly, then, building bike lanes boosts local business.
ConclusionPremise
Hint: find the conclusion, then ask what the evidence actually shows.(C) Confuses correlation with causation. Towns that added lanes may already have been growing.(D) Sample size isn't the gap; the causal leap is.
The argument is most vulnerable to criticism on the grounds that it
Aignores what the bike lanes would cost to build
Bassumes that most downtown shoppers ride bikes
Ctreats a correlation as proof that one thing caused the other
Ddraws its conclusion from too small a sample of towns
Eattacks the council rather than the council's policy
LOGICAL REASONING · Q9
Flaw
Towns that added protected bike lanes saw retail sales rise by an average of 14 percent, while towns without them stayed flat. Clearly, then, building bike lanes boosts local business.ConclusionPremise
The argument is most vulnerable to criticism on the grounds that it
Bassumes that most downtown shoppers ride bikes
Ctreats a correlation as proof that one thing caused the other
Ddraws its conclusion from too small a sample of towns
Hint: find the conclusion, then ask what the evidence actually shows.(C) Towns that added lanes may already have been growing. (D) Sample size isn't the gap.

Explanations for Every Choice

See why the credited answer holds up and exactly where each tempting choice slips, whether it's out of scope, too strong, or reversed.

Reading Comprehension › Passage 3
Daylighting Urban Streams
3 PARAGRAPHSMain point found

1For a century, cities buried small streams in concrete pipes to make room for roads and housing. Some planners now want them back. Uncovering them, a practice called daylighting, repays its cost many times over.

2Critics object that daylighting is expensive and takes land from housing. In dense neighborhoods, they argue, the ecological gains are modest: a few fish, a strip of reeds.

3Yet the critics count only habitat. Opened streams also cool nearby blocks in summer, ease flooding, and draw foot traffic to local shops. Judged by all of its effects, daylighting looks less like a luxury than a bargain.

PASSAGE MAP
¶1Author's view · uncovering buried streams is worth the cost
¶2Critics' objection · too costly, and the gains are modest
¶3Reply · the benefits are broader than critics count

Reading Comprehension Passage Sets

Full passages, including Comparative Reading, with the main point and structure mapped as you read.

Foundations › Conditional Reasoning
Necessary vs. Sufficient
Two ways one idea depends on another

A sufficient condition guarantees the result. A necessary condition is something the result can't happen without.

Take the claim: everyone who passed the bar studied for it.

IF PASSED THE BAR → STUDIED
SUFFICIENTPassed the barguarantees the other→NECESSARYStudiedis required for it

Passing guarantees studying. Studying doesn't guarantee passing, and reading it backwards is a classic Flaw answer.

Words like only if, requires and unless usually introduce the necessary side.

IF PASSED THE BAR → STUDIED
SUFFICIENTPassed the barguarantees the other→NECESSARYStudiedis required for it

Lessons From the Foundations

Short lessons on conditional logic, necessary versus sufficient, and argument structure, with quick checks as you go.

Drill the Question Types That Cost You Points

Flaw, Necessary Assumption, Strengthen, Weaken, Parallel Reasoning. Pick a question type, or let Oncourse pick the ones you miss most.

Set done · 17 / 25
Logical Reasoning · mixed set · 34 min
68%
Costing you pointsLAST 3 SETS
Flaw0 missed
Necessary Assumption0 missed
Weaken0 missed
START RECOMMENDED DRILL
Drill ready · 12 questions
Flaw, Necessary Assumption

Recommended Drills

After each set, Oncourse finds the question types costing you points and builds your next drill around them.

Create DrillLOGICAL REASONING
YOUR ACCURACY BY QUESTION TYPE
Flaw52%Necessary Assumption58%Weaken71%Inference76%
Questions–10+
START DRILL
Your drill is ready · 15 questions, 2 types
LOGICAL REASONING
Create Drill
YOUR ACCURACY BY QUESTION TYPE
Flaw52%Necessary Assumption58%Weaken71%Inference76%
Questions–10+
START DRILL
Your drill is ready · 15 questions, 2 types

Drills by Question Type

Build a drill from any Logical Reasoning or Reading Comprehension question type, with as many questions as you want.

Conditional logic · PatternQuestion
If A → B, what's the contrapositive?
Tap to reveal
Not B → Not A
Flip the order and negate both sides.
FORGOTHARDGOODEASY
Next review in 3 days

Flashcards for the Patterns

Turn flaws, indicator words, and conditional rules into flashcards on spaced repetition, generated in seconds.

Casey, the Oncourse LSAT study partner

Casey: Your AI Study Partner

Casey is your AI study partner, built for the LSAT. It's there whenever you need help, learns how you study, and helps you the way you learn best.

9:41
LSAT
12
M29
T30
W1
T2
F3
I've got today's plan ready for you.
Flaw +260minEDIT
Lesson & Exercises
Flaw questions • 15 min
Practice Questions
20 mixed questions • 30 min
Review missed questions
6 questions • 15 min
Plan updated for this week
Ask Casey anything
Practice
Lessons
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Casey
Test is in 6 weeks and I'm stuck on Flaw. Can we focus there?

Know When You're Ready for Test Day

Oncourse rates your readiness from how you actually answer, including your accuracy and your pace against the section clock.

14 / 25
PRACTICE TEST · LOGICAL REASONING
0:16:48
Retail sales rose 14% in towns that added bike lanes, so the lanes must have caused the rise.
Which one of the following, if true, most seriously weakens the argument?
AThose towns were already growing before the lanes opened
BSome of the lanes were built on residential streets
Answer recorded, reviewed when you finish

Timed Practice Tests

Full practice tests with every section on the 35-minute clock, so the pace and length of test day feel familiar.

LSAT READINESSDrill done · 12 / 15▲ 5 this week
54OUT OF 1004 of 12 question types ready
Knowledge17 / 25
Coverage15 / 25
Exam Instinct12 / 25
Application11 / 25
Main Point80Exam ready
Flaw52Developing
Strengthen / Weaken63Developing
LSAT READINESS
Drill done · 12 / 15▲ 5 this week
54OUT OF 100
Knowledge17 / 25
Coverage15 / 25
Exam Instinct12 / 25
Application11 / 25
4 of 12 question types ready
Main Point80Exam ready
Flaw52Developing
Strengthen / Weaken63Developing

Exam Readiness by Skill

Readiness for each skill, based on what you know and how you apply it under time, updated after every session.

Where your points wentLAST 4 SETS
Flaw0
Necessary Assumption0
Weaken0
Inference0
Main Point0
Questions missed, by type · 25 of 100
Avg 1:52 per question · target 1:2428s slow
NEXT
10 Flaw questions, timed
START

Know What's Costing You Points

After every set, see the question types you missed, where time ran short, and what to practice next.

Practice That Feels Like a Game

Two quick games built on LSAT skills. Play one between study sessions to keep your reasoning sharp and find out what you haven't locked in yet.

Probe:Solve the Logic Mystery

Casey reads out one clue at a time and you say your answer out loud. The fewer clues you need, the better you know it.

1
CLUE 1
Without it, the argument falls apart.
CLUE 2
Negate it and the conclusion no longer follows.
Casey
Clue one. Without it, the argument falls apart.
Casey is speaking…

Synapses:Find the Four Hidden Groups

Sixteen LSAT terms, four hidden groups. Link the concepts that belong together before your lifelines run out.

Create groups of 4!
Test your LSAT knowledge
00:08
Circular reasoningThereforeWeakenBecause
Ad hominemGiven thatThusParallel
HenceStraw manInferenceSince
StrengthenSoForFalse dilemma
LIFELINES
RESETCHECK
Perfect guess! Wohoo! 🎉

Learners love Oncourse

Real feedback from learners using the current Oncourse app.

Emma Collins
Emma CollinsCollege junior

I started early so the LSAT wouldn’t collide with senior year. Oncourse gives me short Logical Reasoning drills that fit around classes.

LSAT
Ethan Park
Ethan ParkCollege senior

Applications were coming up fast. Oncourse showed me which question types were costing me points, so every study session had a target.

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Maya Reynolds
Maya ReynoldsParalegal

I stopped taking PT after PT and started tracking why I missed the same questions. My next drill finally came from my last mistake.

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Daniel Ortiz
Daniel OrtizMaster’s student

Grad school didn’t leave much room. Oncourse kept my prep short and consistent, and my Reading Comprehension timing finally held up.

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Claire Bennett
Claire BennettRetaking the LSAT

My first score didn’t match my practice. Oncourse helped me see why the trap answers kept fooling me and trained accuracy under the clock.

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One plan for the full LSAT course. Start with a 7-day free trial on the annual plan.

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Prices in USD. Every plan includes the full LSAT course.

Frequently asked questions

What does Oncourse cover for the LSAT?

Both scored sections, Logical Reasoning and Reading Comprehension, plus LSAT Argumentative Writing. You get lessons, practice questions, passage sets, drills, flashcards, and timed practice tests.

Are these official LSAT questions?

Oncourse questions are written by Oncourse and modeled closely on the current LSAT's Logical Reasoning and Reading Comprehension question types, so you practice the way you'll be tested and build exam readiness. They aren't official LSAC questions.

Can I use Oncourse alongside another LSAT course?

Yes. Upload notes, screenshots, or questions you're stuck on from anywhere, and Casey can explain them, drill you, or turn them into flashcards.

Is Oncourse affiliated with LSAC?

No. LSAT® is a registered trademark of LSAC, which is not affiliated with and does not endorse Oncourse.

How much does Oncourse cost?

$134.99 a year with a 7-day free trial, $22.99 a month, or $7.99 a week. Every plan includes the full LSAT course.

Casey, the Oncourse LSAT study partner

Start preparing for the LSAT

Explanations for every choice, drills by question type, timed practice, and Casey, in one app.

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Oncourse is an independent exam-preparation product and is not affiliated with or endorsed by LSAC. LSAT® is a registered trademark of the Law School Admission Council. No official LSAT questions are reproduced.