Worksheet 1 — Sort the cards (Lesson 1)

Print, cut into cards, and give each group a set. Sort into numerical and categorical; argue about the tricky ones.

#	Card	Teacher answer
1	Height of a student (cm)	numerical
2	Mother tongue	categorical
3	Ward number	categorical (a label; averaging is meaningless)
4	Shoe size	numerical (counted in steps)
5	Travel by bus or on foot	categorical
6	Rainfall in July (mm)	numerical
7	Number of siblings	numerical (count)
8	Favourite subject	categorical
9	Roll number	categorical (a label)
10	Minutes to reach school	numerical
11	Village or tole name	categorical
12	Hours of sleep last night	numerical
13	Eye colour	categorical
14	Temperature in °C at noon	numerical
15	Grade (8, 9, 10…)	categorical here (a label) — can be discussed as ordered
16	Marks out of 100	numerical
17	School type (public/private)	categorical
18	Number of books at home	numerical
19	Phone number	categorical (a label)
20	Month of birth	categorical (ordered)

Discussion prompt: which cards were hard? What test can you use? (Can I add or average it and still get a meaningful answer?)

Source: written for this repository (CC BY 4.0).