☰ Contents · Computer science

Parts, wholes and comparing

Lessons 26–28 · 3 lessons · Informatics and IT Grade 1. Novda Edutainment, 2023
28

Comparing

Textbook pp. 66–67
GoalCompare two or more things and find what is the same and what is different.
New words
comparing · taqqoslashalike, similar · o‘xshashdifference · farqfeature · belgi
Explanation

To compare, we check features one by one: colour, shape, size, number. Same features are similarities, different ones are differences. If we look carefully, we can find even small differences between pictures that look almost the same.

Worked examples
An apple and a ball: both are round (alike); you can eat an apple but not a ball (different).
Two little houses: one has 2 windows, the other 3; one has a red roof, the other a green roof.
Class activity

“What changed?”: 3 children stand at the front. The others look, then close their eyes. One child changes something (rolls up a sleeve, fixes their hair). The class finds the difference.

Practice
1
How are a cat and a dog alike?
2
How are a pencil and a pen different?
3
Circles: ● ● ○ ●. Which one is different? (which place from the left)