introductory exercise
nounUK /ˌɪn.trəˈdʌk.tər.i ˈek.sə.saɪz/
US /ˌɪn.trəˈdʌk.tər.i ˈek.sɚ.saɪz/
A short, easy practice you do first to learn something new.
The teacher gave us an introductory exercise before the real test.
OTHER MEANINGS
2. A simple task at the start of a book or course that helps you get ready.
Chapter one has an introductory exercise on page five.
3. A light physical activity you do before harder exercise.
We did a few introductory exercises to stretch our legs.
4. A first small job or task that helps you learn a new skill.
Her first introductory exercise at the new job was sorting the mail.