Chapter 3: Exploring the Internet

Exploring the Internet 🌐

Finding What You Need — and Knowing If You Can Trust It

The internet is the most powerful information tool ever built, and also the biggest pile of misinformation and scams ever made. The difference between using it well and getting fooled is a set of skills you can learn: searching, reading a web address, judging a source, and protecting your privacy.

3.1 — Getting Connected and Getting Around 📶

A browser is the app you use to visit websites. Devices connect two ways: Wi-Fi (free, nearby) and cellular data (over the phone network, usually limited). Streaming on cellular can burn your data plan; Wi-Fi is free. Look for the Wi-Fi symbol to check you’re connected.

Every browser has the same tools: the address bar (also a search box), tabs, and buttons for back, refresh, bookmarks, and downloads.

3.2 — Reading a Web Address 🔗

A web address, or URL, tells you a lot. In https://www.example.org:

https:// — the “s” means secure. Any site asking for a password should have it.
.org — the top-level domain. Common: .com (business), .org (organizations), .edu (schools), .gov (government).

Scammers make fake addresses that look almost right, like paypa1.com (a “1” instead of “l”). Read the address carefully before typing a password or clicking a link.

3.3 — Searching Like a Pro 🔎

Anyone can type in a search box; doing it well is a skill:

Use specific words — “why is my laptop battery draining fast” beats “computer slow.”
Put phrases in quotes — "digital literacy" — for exact wording.
Use filters for images, videos, news, or recent dates.
Scan before clicking — the top results are often ads, and the first result isn’t always the best.

3.4 — Is This True? Evaluating Information ⚖️

The most important internet skill is judging what’s trustworthy. When you find a claim, ask:

Who is the source? A known news site, school, or government page beats an anonymous post.
Is there bias? Is it trying to inform you, sell you something, or make you angry?
Does other coverage agree? Real news shows up in many places, not just one strange site.
How current is it? Old pages can be wrong now.

A great habit: when something makes you want to react or share immediately, that’s exactly the moment to slow down and check.

3.5 — Protecting Your Privacy 🕶️

You have real controls over what’s tracked:

Private/incognito windows don’t save history on the device — useful on a shared computer (but not fully invisible).
Clear history and don’t save passwords on shared computers.
Cookies are small files sites use to remember and track you; you can clear them.
CAPTCHAs (“select the traffic lights”) just check you’re a human — normal and safe.

The goal is awareness and control, especially on devices you share.

Chapter 3 Activity: The Source Investigator 🔍

Part 1: Decode URLs

Find three websites. For each, write the URL and identify the top-level domain and whether it’s secure (https). What does the domain tell you about who runs it?

Part 2: Search Showdown

Search a real question with vague words, then with specific words in quotes. Which was better, and why?

Part 3: Fact-Check

Find a surprising claim online. Evaluate it: Who’s the source? Any bias? Do others agree? How current? Would you trust it?

Part 4: Privacy

Explain when you’d use a private window, and describe one privacy setting you’d change on a shared computer.

Key Concepts Checklist

I can name common browsers and explain Wi-Fi vs. cellular data
I can use the address bar, tabs, back, refresh, and bookmarks
I can read a URL, including https and the top-level domain
I can spot a fake or suspicious web address
I can search using specific terms, quotes, and filters
I can evaluate a source by who made it, its bias, agreement, and date
I know AI answers can be confidently wrong and need checking
I can use private browsing and manage cookies and history