beginner

Practice Critical Thinking

General Learning

4 courses

0 practices

2 hours

Sharpen your reasoning with practical tools to separate fact from assumption, spot fallacies, vet evidence, and solve problems clearly. Build habits for clear thinking, sound judgment, and persuasive communication in any situation.

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Verified skills you'll gain

DEVELOPING

Critical Thinking

DEVELOPING

Logical Reasoning

DEVELOPING

Persuasive Communication

DEVELOPING

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Practice anytime, anywhere with our mobile app.

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Course 2

Logic, Fallacies & Bias Mastery

10 lessons

0 practices

Strengthen deductive and inductive reasoning while spotting logical fallacies and cognitive biases that sabotage everyday decisions.

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Course 3

Structured Problem Solving & Persuasion

8 lessons

0 practices

Apply argument maps, root-cause tools, and decision matrices to craft solutions, then communicate and defend conclusions to varied audiences.

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Course 4

Evidence Vetting & Basic Stats

10 lessons

0 practices

Assess credibility, relevance, and sufficiency of evidence, and interpret simple descriptive statistics without spreadsheets or calculators.

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From our community

Hear what our customers have to say about CodeSignal Learn

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

I love that it's personalized. When I'm stuck, I don't have to hope my Google searches come out successful. The AI mentor Cosmo knows exactly what I need.

Faith Yim

Software Engineer

+14

It's an amazing product and exceeded my expectations, helping me prepare for my job interviews. Hands-on learning requires you to actually know what you are doing.

Alex Bush

Full Stack Engineer

I'm really impressed by the AI tutor Cosmo's feedback about my code. It's honestly kind of insane to me that it's so targeted and specific.

Abbey Helterbran

Tech consultant

I tried Leetcode but it was too disorganized. CodeSignal covers all the topics I'm interested in and is way more structured.

Jonathan Miller

Senior Machine Learning Engineer

+12

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

From our community

Hear what our customers have to say about CodeSignal Learn

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11

I love that it's personalized. When I'm stuck, I don't have to hope my Google searches come out successful. The AI mentor Cosmo knows exactly what I need.

Faith Yim

Software Engineer

+14

It's an amazing product and exceeded my expectations, helping me prepare for my job interviews. Hands-on learning requires you to actually know what you are doing.

Alex Bush

Full Stack Engineer

I'm really impressed by the AI tutor Cosmo's feedback about my code. It's honestly kind of insane to me that it's so targeted and specific.

Abbey Helterbran

Tech consultant

I tried Leetcode but it was too disorganized. CodeSignal covers all the topics I'm interested in and is way more structured.

Jonathan Miller

Senior Machine Learning Engineer

+12

I'm impressed by the quality and can't stop recommending it. It's also a lot of fun!

Francisco Aguilar Meléndez

Data Scientist

+11