Privacy, identity and digital footprints
Every account combines personal information, permissions and a lasting record of choices.
Lesson overview
What you'll learn in this lesson
Protect privacy, identity and wellbeing online
Key learning points
- • Protect access
- • Control the footprint
This lesson at a glance
- 25 minutes
- 10 parts to scroll through
- 3 quick checks
- Marked quiz at the end
- Gentle pace: short sittings with pauses
Words to know
Scroll down — the lesson carries on below
Watch & discover
Part 1 of 10
Watch first
Privacy, identity and digital footprints
An English teaching video on this topic from BBC Learning English. Watch it, then scroll down for the lesson.
In a nutshell
Protect privacy, identity and wellbeing online
Explore the idea
Part 2 of 10
Learn
Protect access
Use unique passwords and multi-factor authentication. Review app permissions and avoid publishing identifiers such as addresses or live locations.
Explore the idea
Part 3 of 10
Learn
Control the footprint
Before posting, consider audience, permanence and whether another person has consented to appear. Privacy settings reduce exposure but do not guarantee deletion.
Quick check
Part 4 of 10
Quick check
What best protects an account?
Quick check
Part 5 of 10
Quick check
Should live location be public?
Quick check
Part 6 of 10
Quick check
Do privacy settings guarantee deletion?
Challenge round
Part 7 of 10
Game · Sort it
Which of these are true?
Drag each card into the right column. Tap a card first if dragging is fiddly.
True
Not true
Challenge round
Part 8 of 10
Game · Fill the gaps
Finish the sentences
Choose the word that belongs in each gap.
____ settings reduce exposure but do not guarantee deletion.
Mastery quiz
Part 9 of 10
Marked quiz
End of lesson quiz: Privacy, identity and digital footprints
3 questions, marked with the reasoning shown. No timer.
1. What best protects an account?
2. Should live location be public?
3. Do privacy settings guarantee deletion?
Lesson round-up
Part 10 of 10
Lesson round-up
Ready when you are
Quiz score
Not sat
Games
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Points this lesson
0
Best run
0 in a row
Luna: 0 out of 3 on the practice checks. Only if you feel up to it — one more?
Ask LunaDo the work
Your written work for this lesson
This is the part you'd do in your book at school. Pick the pieces below, write here or on paper, and photograph anything you draw or work out.
How a supermarket checkout knows the price
When a barcode is scanned, the checkout does not store the price itself. It sends the barcode number to a database and reads back a record: product name, price, whether it needs an age check. The record is the single place the price lives, so changing one row changes every till in the shop at once.
Problems come from bad data, not bad scanners. If two products share a barcode, or a price update reaches the shop overnight but the till holds an old copy in its cache, customers are charged the wrong amount. Shops check this with test transactions: scan a known item, expect a known price, record what actually happened.
Good systems also log every scan. If a customer complains, the log shows exactly which record was used and when.
Written for Good Learning Co.
Reading questions
- Write in your own words what the checkout sends and what it receives back.
- Explain one way bad data could cause a wrong price, and how logging helps find it.
- Design a test table with four tests for a new checkout, with expected and actual results.
Reading and notes
ReadingRead the lesson text again and note the key terms and how each one is used, in your own words — as you would for revision.
Half a page of notes
Extended writing
WritingExplain a real system that uses this idea — how it works, where it can go wrong, and how you would make it safer or better.
250–350 words
Algorithm on paper
DiagramWrite your steps out as pseudocode or a flowchart before you type anything, then photograph it.
1 flowchart or 10 lines
Code write-up
WritingCopy your code in, then explain underneath what each part does and what you had to fix.
Code + 5 sentences
Test table
Working outMake a test table: what you tried, what you expected, what actually happened.
4–6 tests
Saved as you type.
Part 1 of 10 · Watch & discover
