Bài 2-Blockly-lớp 6

What is Blockly?

• A text-based programming language

• A programming tool using drag-and-drop blocks

• A word processing software

• An operating system

What is the main goal of Blockly?

• To learn how to write complex code

• To teach programming easily through a drag-and-drop interface

• To speed up software processing

• To manage databases

What does each block in Blockly represent?

• A function or command in programming

• An illustrative image

• A test or quiz

• A webpage element

Which programming languages can Blockly export to?

• JavaScript

• Python

• PHP

• All of the above

What are variables used for in Blockly?

• To store values for use in a program

• To perform calculations

• To compare data

• To create graphical interfaces

How are variables declared in Blockly?

• By typing them directly from the keyboard

• By creating a 'Variable' block and naming it

• By writing code in an editor

• By dragging a 'Math' block

What types of values can a variable hold?

• Integer numbers

• Strings

• Boolean values (true/false)

• All of the above

What happens if two variables have the same name in a program?

• The program will throw an error

• The program will only use the last declared variable

• The program will automatically rename one variable

• Nothing happens

What operations are included in arithmetic operators in Blockly?

• Addition, subtraction, multiplication, division

• And, or, not

• Greater than, less than

• All of the above

Which block is used to compare two values in Blockly?

• Arithmetic operator

• Logical operator

• Comparison operator

• Variable