5 Badges & Progress
Badges & Progress
XP tells you how much verified activity you've accumulated. Badges mark specific achievements; certificates mark completed modules; streaks count return days. Here's exactly what moves each one.
Sammy your guide, not a professor
“I thought XP was a score I could lose. It isn't. It's a running record of things I've actually completed — and the badge is the receipt for a particular milestone.”
First, Sign In
The progression system needs the free Google sign-in so it can attach achievements to you instead of to one browser. Your Dashboard is the one place to see your XP, level, completed chapters, badges, certificates, current and longest streaks, and leaderboard setting.
A new profile starts with a 50 XP welcome bonus. After that, XP comes from completed activity and each source is recorded so the same achievement cannot be paid twice.
What Earns XP
From Chapter to Certificate
Sammy says: retaking a check is useful for recall, but it doesn't manufacture extra rewards. Correct answers, chapter completions, badges, and certificates all have duplicate guards.
How Streaks Work
Your streak updates when you sign in on a new learning day. Consecutive days extend it; returning after a gap starts the current streak again at one. The dashboard keeps both your current and longest streak. There is no streak freeze or repair token.
The Leaderboard Is Your Choice
The leaderboard ranks XP, but it only includes people who leave Show on leaderboard switched on. New profiles start opted out. If you opt in, the visible handle is the display name you choose; IoTClass does not publish your Google name, email, or profile picture there. You can switch visibility off again from your dashboard.