☰ Contents · Computing

A sequence of actions and the algorithm

Lessons 17–19 · 3 lessons · F.M. Zakirova, M.R. Zakirova. Informatics and Information Technology Grade 2. Novda Edutainment, 2024
17

A sequence of actions

Textbook: pp. 44–45
GoalPut actions in the right order and understand that a different order can change the result.
New words
sequence · ketma-ketlikorder · tartibresult · natijafirst · avval
Explanation

To reach a goal we do actions one after another, in order. Actions done in order that lead to a result form a sequence of actions. If the order is broken, the result changes or fails. For example, socks go on first, then shoes. If we do it the other way round, it turns out funny!

Worked examples
Brushing teeth: 1) take the brush, 2) put on paste, 3) clean the teeth, 4) rinse the mouth.
Making tea: first the water is boiled, then the tea is added. If the order changes, the tea will not taste good.
Class activity

“Put in order”: give shuffled picture cards (for example, planting: soil, seed, water, sprout). The group lays them in the right order and tells the story.

Practice
1
Find the right order: a) put on shoes, then socks; b) put on socks, then shoes.
2
Order the actions for spreading butter on bread: spread the butter, take the bread, take the butter.
3
Say 4 actions for sweeping the yard in order.