skill~150 mindifficulty

Pandas

Pandas is how you actually work with real datasets — spreadsheets, CSVs, tables. It is the daily tool of analysts and data scientists.

1

Learn it

Learn the DataFrame (a table) and Series (a column). Learn to load data (read_csv), inspect it (head, info, describe), filter rows, select columns, and group/aggregate.

By the end you’ll be able to

  • Load and inspect tabular data
  • Filter, group, and aggregate

Free resources

2

Practice

Load a public CSV (e.g. Titanic), filter to one group, and compute an average with groupby.

3

Build it — your output

A mini analysis notebook: load a real dataset, clean one column, and answer 3 questions about it with code + a sentence each.

4

Prove it — check yourself

You’re ready to move on when you can honestly say yes to each:

  • Can you load a CSV and inspect it?
  • Can you filter rows by a condition?
  • Can you use groupby to summarize?

Do it with AI

Use a free AI tool as your tutor and pair-programmer. Copy a prompt below into Claude, ChatGPT, or Gemini (for building, try Cursor or Copilot).

The habit: Try it yourself first — a little struggle is where the learning actually happens. Then ask for a hint before the answer — never copy blindly.

  • Understand itClaude / ChatGPT / Gemini

    I'm a beginner learning "Pandas". Explain it in simple terms with a real-world analogy, then ask me ONE question to check my understanding — don't reveal the answer.

  • PracticeClaude / ChatGPT / Gemini

    Give me 3 short practice problems on "Pandas" (my goal: load and inspect tabular data), from easy to hard. Don't include the solutions yet — I'll try them first, then ask you to check.

  • Get unstuckClaude / ChatGPT / Gemini

    I'm stuck on this exercise about "Pandas": [paste your attempt here]. Give me ONE small hint to move forward — do NOT give me the full solution.

  • Build & reviewCursor / Copilot

    Here is my work for a "Pandas" task: [paste your code or answer]. Review it: point out what's wrong and WHY, and suggest improvements — but let me make the fixes myself.

  • Prove itClaude / ChatGPT / Gemini

    Quiz me on "Pandas". Ask me 5 questions one at a time, wait for my answer each time, then tell me if I'm right and briefly why.

My notes