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Preview

DA 6.3: Right data, right reader, right year

This is the first page of the lesson. Read it and have a go at the activities. The rest is in the full lesson.

55 minutes

A true number about the wrong place

A report says, "Nine in ten homes have fast internet." It is a good report. Its figures are checked.

But it counts homes in one big city. You are studying a small village. The report is true and still wrong for your job.

Key words

WordWhat it meansExample
Contextthe situation around a fact: which place, which group, which time
Appropriateright for your job and at the right level of detail
Target audiencethe people a source was written for
Technical termsspecial words used by people who work in a field
Versiona numbered release of a document or a toolversion 3.1
Publication datethe day a source was first shared
Outdatedtoo old to be right now

The cells students fill in are left blank in this preview.

By the end of this lesson

Note

I can check a source for context, fit, audience, version and date.

Starter

Have a go

Starter

3 questions
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Five checks of fit

CheckAskA good signA warning sign
Relevant contextIs it about my place, group and time?Same region, same age groupAbout somewhere else
Appropriate dataIs the detail right for my job?Counts by town, as I needOnly a country total
Target audienceWho was it written for?Plain words for managers, technical terms for analystsWritten for the wrong reader
VersionIs this the current version?Version number matches mineAn older version
Publication dateIs it recent enough?This yearMany years old

The cells students fill in are left blank in this preview.

Audience and technical terms

A page for managers uses plain words, such as "average". A page for analysts may use technical terms, such as "median" and "outlier".

Pick the one that suits your reader. A source for the wrong reader can leave out detail you need, or bury you in words you cannot use.

Version and date are two checks

Data and reports are updated. Match the version first. Then read the publication date. A page published years ago may be outdated, for example a survey of phone use from before most people had a smartphone.

A new date does not make a page right. It is one check of five.

Run it: how old is each source?

Code: python
years = [2025, 2021, 2012, 2024]
this_year = 2026
limit = 5
for year in years:
    age = this_year - year
    if age > limit:
        print(year, "is", age, "years old: outdated")
    else:
        print(year, "is", age, "years old: ok")

The lesson goes on

5 more parts of this lesson are in the full curriculum, with the tasks, the final check and the labs. A college account gives your students all of it.