How binary digits work programming challenges

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Number	Name	Challenge Level
1.1	Display binary numbers (without calculations) Show more details	Beginner
	Learning outcomes Students will be able to: Explain how sequence works in programming. Computer Science: Programming Explain why a program gives the output that it does. Computer Science: Programming Challenge Solutions Show Block-based solution Show Scratch solution Show Python solution
1.2	Display Binary Numbers (using a variable) Show more details	Beginner
	Learning outcomes Students will be able to: Describe how variables store values and how they are used in your program. Computer Science: Programming Explain how sequence works in programming. Computer Science: Programming Challenge Solutions Show Python solution Show Block-based solution Show Scratch solution
1.3	Display Binary Numbers (using variables as an operator) Show more details	Beginner
	Learning outcomes Students will be able to: Explain how sequence works in programming. Computer Science: Programming Outline how storing values in a variable is updated because of the code you have used. Computer Science: Programming Challenge Solutions Show Scratch solution Show Block-based solution Show Python solution
1.4	Display Binary Numbers (using a variable, operator and a repeat loop) Show more details	Beginner
	Learning outcomes Students will be able to: Describe how a variable can be displayed as an output. Computer Science: Programming Identify how and when to use a loop to repeat a set of instructions. Computer Science: Programming Outline how storing values in a variable is updated because of the code you have used. Computer Science: Programming Challenge Solutions Show Python solution Show Block-based solution Show Scratch solution
2.1	Display number of dots for a given number of cards Show more details	Growing experience
	Learning outcomes Students will be able to: Describe how variables store values and how they are used in your program. Computer Science: Programming Explain what you need to consider if you are asking for an input from the end user. Computer Science: Programming Identify how and when to use a loop to repeat a set of instructions. Computer Science: Programming Challenge Solutions Show Scratch solution Show Python solution Show Block-based solution
2.2	Display number of dots from right to left in one line Show more details	Growing experience
	Learning outcomes Students will be able to: Describe how variables store values and how they are used in your program. Computer Science: Programming Explain how to concatenate (join) strings of characters together. Computer Science: Programming Explain what you need to consider if you are asking for an input from the end user. Computer Science: Programming Challenge Solutions Show Scratch solution Show Block-based solution Show Python solution
3.1	Display number of dots from the given largest card to 1 Show more details	Growing experience
	Learning outcomes Students will be able to: Describe how variables store values and how they are used in your program. Computer Science: Programming Explain what you need to consider if you are asking for an input from the end user. Computer Science: Programming Identify how and when to use a loop to repeat a set of instructions. Computer Science: Programming Challenge Solutions Show Scratch solution Show Block-based solution Show Python solution
4.1	Count dots on 5 black and white cards (without a loop) Show more details	Growing experience
	Learning outcomes Students will be able to: Describe how variables store values and how they are used in your program. Computer Science: Programming Explain what you need to consider if you are asking for an input from the end user. Computer Science: Programming Identify when to use an if statement to check a set of conditions. Computer Science: Programming Challenge Solutions Show Python solution Show Scratch solution Show Block-based solution
4.2	Count dots on 5 black and white cards (using a loop) Show more details	Growing experience
	Learning outcomes Students will be able to: Describe how variables store values and how they are used in your program. Computer Science: Programming Explain what you need to consider if you are asking for an input from the end user. Computer Science: Programming Identify how and when to use a loop to repeat a set of instructions. Computer Science: Programming Identify when to use an if statement to check a set of conditions. Computer Science: Programming Challenge Solutions Show Scratch solution Show Block-based solution Show Python solution
4.3	Count dots on 5 black and white cards as one input (without a loop) Show more details	Growing experience
	Learning outcomes Students will be able to: Demonstrate how indexing to access a letter at the specified position in a string works. Computer Science: Programming Describe how variables store values and how they are used in your program. Computer Science: Programming Explain what you need to consider if you are asking for an input from the end user. Computer Science: Programming Identify when to use an if statement to check a set of conditions. Computer Science: Programming Challenge Solutions Show Scratch solution Show Python solution Show Block-based solution
4.4	Count dots on 5 black and white cards as one input (using a loop) Show more details	Growing experience
	Learning outcomes Students will be able to: Demonstrate how indexing to access a letter at the specified position in a string works. Computer Science: Programming Describe how variables store values and how they are used in your program. Computer Science: Programming Explain what you need to consider if you are asking for an input from the end user. Computer Science: Programming Identify how and when to use a loop to repeat a set of instructions. Computer Science: Programming Identify when to use an if statement to check a set of conditions. Computer Science: Programming Challenge Solutions Show Scratch solution Show Block-based solution Show Python solution
4.5	Count dots on any number of black and white cards as one input (using a loop) Show more details	Ready to expand
	Learning outcomes Students will be able to: Demonstrate how indexing to access a letter at the specified position in a string works. Computer Science: Programming Describe how variables store values and how they are used in your program. Computer Science: Programming Explain what you need to consider if you are asking for an input from the end user. Computer Science: Programming Identify how and when to use a loop to repeat a set of instructions. Computer Science: Programming Identify when to use an if statement to check a set of conditions. Computer Science: Programming Challenge Solutions Show Python solution Show Scratch solution Show Block-based solution
5.1	Display the binary cards needed to represent a given number of dots Show more details	Growing experience
	Learning outcomes Students will be able to: Describe how variables store values and how they are used in your program. Computer Science: Programming Explain what you need to consider if you are asking for an input from the end user. Computer Science: Programming Identify when to use an if statement to check a set of conditions. Computer Science: Programming Challenge Solutions Show Scratch solution Show Python solution
5.2	Display the binary cards needed to represent a given number of dots (all in one line) Show more details	Growing experience
	Learning outcomes Students will be able to: Describe how variables store values and how they are used in your program. Computer Science: Programming Explain what you need to consider if you are asking for an input from the end user. Computer Science: Programming Identify when to use an if statement to check a set of conditions. Computer Science: Programming Challenge Solutions Show Scratch solution Show Python solution
6.1	Display the number of bits needed to represent a number Show more details	Ready to expand
	Learning outcomes Students will be able to: Describe how variables store values and how they are used in your program. Computer Science: Programming Explain what you need to consider if you are asking for an input from the end user. Computer Science: Programming Identify how and when to use a loop to repeat a set of instructions. Computer Science: Programming Challenge Solutions Show Scratch solution Show Block-based solution Show Python solution
7.1	Display the binary cards needed to represent a decimal number between 0 and 31 Show more details	Ready to expand
	Learning outcomes Students will be able to: Describe how variables store values and how they are used in your program. Computer Science: Programming Explain what you need to consider if you are asking for an input from the end user. Computer Science: Programming Identify how and when to use a loop to repeat a set of instructions. Computer Science: Programming Identify when to use an if statement to check a set of conditions. Computer Science: Programming Challenge Solutions Show Python solution Show Scratch solution
7.2	Display the binary cards needed to represent any decimal number Show more details	Ready to expand
	Learning outcomes Students will be able to: Describe how variables store values and how they are used in your program. Computer Science: Programming Explain what you need to consider if you are asking for an input from the end user. Computer Science: Programming Identify how and when to use a loop to repeat a set of instructions. Computer Science: Programming Identify when to use an if statement to check a set of conditions. Computer Science: Programming Challenge Solutions Show Python solution Show Scratch solution
7.3	Convert a positive decimal number to a binary number Show more details	Ready to expand
	Learning outcomes Students will be able to: Describe how variables store values and how they are used in your program. Computer Science: Programming Explain what you need to consider if you are asking for an input from the end user. Computer Science: Programming Identify how and when to use a loop to repeat a set of instructions. Computer Science: Programming Identify when to use an if statement to check a set of conditions. Computer Science: Programming Challenge Solutions Show Python solution Show Scratch solution
7.4	Convert a decimal number to a binary number (alternative method) Show more details	Ready to expand
	Learning outcomes Students will be able to: Describe how variables store values and how they are used in your program. Computer Science: Programming Explain what you need to consider if you are asking for an input from the end user. Computer Science: Programming Identify how and when to use a loop to repeat a set of instructions. Computer Science: Programming Identify when to use an if statement to check a set of conditions. Computer Science: Programming Challenge Solutions Show Scratch solution Show Python solution
8.1	Binary representation of a decimal number between 0 and 31 by playing musical notes Show more details	Ready to expand
	Learning outcomes Students will be able to: Describe how variables store values and how they are used in your program. Computer Science: Programming Explain what you need to consider if you are asking for an input from the end user. Computer Science: Programming Identify how and when to use a loop to repeat a set of instructions. Computer Science: Programming Identify when to use an if statement to check a set of conditions. Computer Science: Programming Challenge Solutions Show Scratch solution Show Python solution
8.2	Binary representation of any decimal number by playing musical notes Show more details	Ready to expand
	Learning outcomes Students will be able to: Describe how variables store values and how they are used in your program. Computer Science: Programming Explain what you need to consider if you are asking for an input from the end user. Computer Science: Programming Identify how and when to use a loop to repeat a set of instructions. Computer Science: Programming Identify when to use an if statement to check a set of conditions. Computer Science: Programming Challenge Solutions Show Scratch solution Show Python solution
9.1	Display binary cards with dots representing a number between 0 and 31 Show more details	Ready to expand
	Learning outcomes Students will be able to: Describe how variables store values and how they are used in your program. Computer Science: Programming Explain what you need to consider if you are asking for an input from the end user. Computer Science: Programming Identify how and when to use a loop to repeat a set of instructions. Computer Science: Programming Identify when to use an if statement to check a set of conditions. Computer Science: Programming Challenge Solutions Show Scratch solution