Data structures for searching

Binary numbers

Error detection and correction

Kidbots

Searching algorithms

Sorting networks

Image Representation

Reinforcing sequencing in binary number systems

Ages 5 to 7: Lesson 2

Within topic Binary numbers

Computational Thinking: Abstraction Computational Thinking: Decomposition Mathematics: Numeracy Literacy: Speaking Performing Arts: Drama

Colour by numbers

Ages 5 to 7: Lesson 1

Ages 8 to 10: Lesson 1

Within topic Image Representation

Computational Thinking: Abstraction Computer Science: Data Representation

Reinforcing sequencing in binary number systems

Ages 8 to 10: Lesson 2

Within topic Binary numbers

Computational Thinking: Generalising and Patterns Computational Thinking: Logic Mathematics: Numeracy Literacy: Speaking Performing Arts: Drama

Binary search trees

Ages 11 to 14: Lesson 1

Within topic Data structures for searching

Computational Thinking: Algorithmic Thinking Computational Thinking: Decomposition Computational Thinking: Evaluation Computational Thinking: Logic Computer Science: Algorithms Literacy: Reading

Codes for letters using binary representation

Ages 8 to 10: Lesson 3

Within topic Binary numbers

Computational Thinking: Decomposition Computational Thinking: Generalising and Patterns Computational Thinking: Logic Language Learning

Parity magic

Ages 5 to 7: Lesson 1

Within topic Error detection and correction

Computational Thinking: Decomposition Computational Thinking: Generalising and Patterns Mathematics: Numeracy

Product code check digits

Ages 8 to 10: Lesson 2

Within topic Error detection and correction

Computational Thinking: Logic Computer Science: Algorithms Mathematics: Measurement Mathematics: Numeracy Performing Arts: Music

How many guesses?

Ages 5 to 7: Lesson 1

Within topic Searching algorithms

Computational Thinking: Generalising and Patterns Computer Science: Algorithms Mathematics: Statistics

How many guesses?

Ages 8 to 10: Lesson 1

Within topic Searching algorithms

Computational Thinking: Generalising and Patterns Computer Science: Algorithms Mathematics: Statistics

The Great Number Hunt (Unsorted)

Ages 8 to 10: Lesson 3

Within topic Searching algorithms

Computational Thinking: Generalising and Patterns Computer Science: Algorithms Mathematics: Statistics

How binary digits work

Ages 5 to 7: Lesson 1

Within topic Binary numbers

Computational Thinking: Logic Mathematics: Numeracy

Reinforcing numeracy through a Sorting Network

Ages 5 to 7: Lesson 1

Within topic Sorting networks

Computational Thinking: Algorithmic Thinking Mathematics: Numeracy

Investigating variations using the Sorting Network

Ages 8 to 10: Lesson 2

Ages 11 to 14: Lesson 2

Within topic Sorting networks

Computational Thinking: Algorithmic Thinking Computational Thinking: Decomposition Computational Thinking: Generalising and Patterns Literacy: Reading Performing Arts: Music

Parity magic

Ages 8 to 10: Lesson 1

Within topic Error detection and correction

Computational Thinking: Algorithmic Thinking Computational Thinking: Decomposition Computational Thinking: Generalising and Patterns Mathematics: Numeracy

Rescue Mission

Ages 5 to 7: Lesson 1

Within topic Kidbots

Computational Thinking: Algorithmic Thinking Computer Science: Programming Mathematics: Geometry Mathematics: Numeracy Literacy: Listening Literacy: Speaking

Divide and conquer

Ages 5 to 7: Lesson 2

Within topic Searching algorithms

Computational Thinking: Decomposition Computational Thinking: Generalising and Patterns Computer Science: Algorithms Mathematics: Numeracy Mathematics: Statistics

Fitness unplugged

Ages 5 to 7: Lesson 2

Within topic Kidbots

Computational Thinking: Algorithmic Thinking Computer Science: Programming Mathematics: Numeracy Physical Education: Fitness

Investigating variations using the Sorting Network

Ages 5 to 7: Lesson 2

Within topic Sorting networks

Computational Thinking: Algorithmic Thinking Computational Thinking: Generalising and Patterns Literacy: Reading

How binary digits work

Ages 8 to 10: Lesson 1

Within topic Binary numbers

Computational Thinking: Abstraction Computational Thinking: Algorithmic Thinking Computational Thinking: Logic Mathematics: Numeracy

Divide and conquer

Ages 8 to 10: Lesson 2

Within topic Searching algorithms

Computational Thinking: Decomposition Computational Thinking: Generalising and Patterns Computer Science: Algorithms Mathematics: Numeracy Mathematics: Statistics

Codes for letters using binary representation

Ages 5 to 7: Lesson 3

Within topic Binary numbers

Computational Thinking: Abstraction Computational Thinking: Decomposition Mathematics: Numeracy Literacy: Reading

The Modulo operator Unplugged

Ages 8 to 10: Lesson 3

Within topic Kidbots

Reinforcing numeracy through a Sorting Network

Ages 8 to 10: Lesson 1

Ages 11 to 14: Lesson 1

Within topic Sorting networks

Computational Thinking: Algorithmic Thinking Computational Thinking: Decomposition Mathematics: Numeracy

The Great Number Hunt (Sorted)

Ages 8 to 10: Lesson 4

Within topic Searching algorithms

Computational Thinking: Decomposition Computational Thinking: Generalising and Patterns Computer Science: Algorithms Mathematics: Numeracy Mathematics: Statistics

Squeezing pictures into less space

Ages 5 to 7: Lesson 2

Ages 8 to 10: Lesson 2

Within topic Image Representation

Computational Thinking: Abstraction Computational Thinking: Generalising and Patterns Mathematics: Geometry Mathematics: Numeracy Literacy: Listening

Sending a rocket to Mars

Ages 8 to 10: Lesson 1

Within topic Kidbots

Computer Science: Programming Mathematics: Geometry Literacy: Listening Literacy: Speaking

Arrows

Barcode Checksum Poster

Binary Cards

Binary Cards (Small)

Binary to Alphabet

Binary Windows

Grid

Job Badges

Left and Right Cards

Modulo Clock

Number Hunt

Parity Cards

Piano Keys

Pixel Painter

Run Length Encoding

Searching Cards

Sorting Network

Sorting Network Cards

Train Stations

Treasure Island

People

Principles

What is Computer Science

Computational Thinking

Contact

About

How do I teach CS Unplugged

Mind-reading magic

Binary Challenge

Guess my number

Find my card

Guess the sentence

Unlocking the secret in product codes

Kidbots

Squeezing pictures into codes

Binary Candles or Normal Candles on your Cake

Literacy: Writing

Within topic Binary numbers

Binary Name Necklaces

Art

Within topic Binary numbers

Drama or video activity

Art Performing Arts: Drama

Within topic Searching algorithms

Finding shapes

Mathematics: Geometry

Within topic Kidbots

Moving in a shape

Mathematics: Geometry

Within topic Kidbots

Storytelling

Literacy: Speaking

Within topic Kidbots

What if?

Literacy: Writing

Within topic Error detection and correction

Instructional writing

Literacy: Writing

Within topic Error detection and correction

Quick card flip magic

Mathematics: Numeracy

Within topic Error detection and correction

Binary Tunes

Performing Arts: Music

Within topic Binary numbers

Whose cake is it?

Literacy: Writing

Within topic Binary numbers

Biographies and binary number system history

Literacy: Reading Literacy: Writing

Within topic Binary numbers

Biography

Literacy: Reading Literacy: Speaking Literacy: Writing

Within topic Searching algorithms

Binary Art

Art

Within topic Binary numbers

Biographies and error control history

Literacy: Writing

Within topic Error detection and correction

Word study activity

Literacy: Word Study

Within topic Error detection and correction

Music activity

Performing Arts: Music

Within topic Searching algorithms

Retelling a story

Literacy: Speaking

Within topic Sorting networks

Where is my hat?

Literacy: Writing

Within topic Searching algorithms

Binary Patterns

Art

Within topic Binary numbers

Growing into a butterfly

Science: Biology

Within topic Sorting networks

Move to a number

Mathematics: Numeracy

Within topic Kidbots

Research

Routing and deadlock

Scout patrol encryption

Searching algorithms

Sorting algorithms

Activities

Artificial intelligence

Binary numbers

CS Unplugged Book

Class simulation computer (unfinished)

Community

Information hiding

Information theory

Minimal spanning trees

Modems Unplugged 2

Network protocols

Phylogenetics

Programming languages

Promotional

Public key encryption

Human interface design

Image representation

Community activties

Cryptographic protocols

Curriculum links

Databases

Dominating sets

Error detection

Events

Finite state automata

Graph colouring

Harold the Robot 2

Sorting networks

Steiner trees

Text compression

The Turing Test

Display binary numbers (without calculations)

Challenge Level: Beginner

Within topic Binary numbers

Display number of dots from the given largest card to 1

Challenge Level: Growing experience

Within topic Binary numbers

Check if a number is a divisor of another number

Challenge Level: Growing experience

Within topic Kidbots

Count dots on 5 black and white cards (without a loop)

Challenge Level: Growing experience

Within topic Binary numbers

Display the binary cards needed to represent a given number of dots

Challenge Level: Growing experience

Within topic Binary numbers

Display the number of bits needed to represent a number

Challenge Level: Ready to expand

Within topic Binary numbers

Display the binary cards needed to represent a decimal number between 0 and 31

Challenge Level: Ready to expand

Within topic Binary numbers

Draw a star

Challenge Level: Growing experience

Within topic Kidbots

Display the binary cards needed to represent any decimal number

Challenge Level: Ready to expand

Within topic Binary numbers

Draw a triangle (without a loop)

Challenge Level: Beginner

Within topic Kidbots

Count dots on 5 black and white cards as one input (using a loop)

Challenge Level: Growing experience

Within topic Binary numbers

Display number of dots from right to left in one line

Challenge Level: Growing experience

Within topic Binary numbers

Check for odd/even numbers using modulo operation

Challenge Level: Growing experience

Within topic Error detection and correction

Binary representation of a decimal number between 0 and 31 by playing musical notes

Challenge Level: Ready to expand

Within topic Binary numbers

Detect parity error in rows and columns (any length)

Challenge Level: Ready to expand

Within topic Error detection and correction

Convert a positive decimal number to a binary number

Challenge Level: Ready to expand

Within topic Binary numbers

12 digit product codes: Calculate the last digit (one line of input)

Challenge Level: Ready to expand

Within topic Error detection and correction

Modify a Bee-Bot

Challenge Level: Growing experience

Within topic Kidbots

Rotation of a square

Challenge Level: Beginner

Within topic Kidbots

Count the black squares (one colour per input)

Challenge Level: Beginner

Within topic Error detection and correction

Count the black squares (one line of input)

Challenge Level: Growing experience

Within topic Error detection and correction

Draw a circle with radius 100

Challenge Level: Ready to expand

Within topic Kidbots

Rotation of a triangle

Challenge Level: Beginner

Within topic Kidbots

Detect parity error in a row

Challenge Level: Growing experience

Within topic Error detection and correction

Detect parity error in 6 rows (after each row is entered)

Challenge Level: Growing experience

Within topic Error detection and correction

Draw a 5-pointed star

Challenge Level: Growing experience

Within topic Kidbots

Detect parity error in any number of rows (after each row is entered)

Challenge Level: Growing experience

Within topic Error detection and correction

Draw 3D shapes (cube)

Challenge Level: Growing experience

Within topic Kidbots

Detect parity error in any number of rows (after all the rows are entered)

Challenge Level: Ready to expand

Within topic Error detection and correction

12 digit product codes: Check if total is a multiple of 10 (one line of input)

Challenge Level: Growing experience

Within topic Error detection and correction

Display the binary cards needed to represent a given number of dots (all in one line)

Challenge Level: Growing experience

Within topic Binary numbers

Display Binary Numbers (using a variable)

Challenge Level: Beginner

Within topic Binary numbers

Translation

Challenge Level: Ready to expand

Within topic Kidbots

Reflection

Challenge Level: Growing experience

Within topic Kidbots

Go up 1, 10 or 100 numbers

Challenge Level: Ready to expand

Within topic Kidbots

Find factors of a number

Challenge Level: Growing experience

Within topic Kidbots

12 digit product codes: Calculate the last digit (entered one digit at a time)

Challenge Level: Ready to expand

Within topic Error detection and correction

Check if a year is a leap year

Challenge Level: Growing experience

Within topic Kidbots

Check for odd/even numbers using repeated subtraction

Challenge Level: Growing experience

Within topic Error detection and correction

Find prime factors of a number

Challenge Level: Growing experience

Within topic Kidbots

Flip a coin (probability of getting a head or a tail)

Challenge Level: Ready to expand

Within topic Kidbots

13 digit product codes: Calculate the last digit (entered one digit at a time)

Challenge Level: Ready to expand

Within topic Error detection and correction

Check for valid ISBN-10 number

Challenge Level: Ready to expand

Within topic Error detection and correction

Check if a number is a divisor of another number

Challenge Level: Growing experience

Within topic Kidbots

Check for odd/even numbers using “mod” operation

Challenge Level: Growing experience

Within topic Kidbots

Check for valid credit card number

Challenge Level: Ready to expand

Within topic Error detection and correction

Calculate the last digit of an ISBN-10 number

Challenge Level: Ready to expand

Within topic Error detection and correction

Draw a triangle (with a loop)

Challenge Level: Beginner

Within topic Kidbots

Draw a pentagon (without a loop)

Challenge Level: Growing experience

Within topic Kidbots

Draw a pentagon (with a loop)

Challenge Level: Growing experience

Within topic Kidbots

Add hours on a clock without using “mod” (12-hour clock)

Challenge Level: Growing experience

Within topic Kidbots

Add number of months to a given month

Challenge Level: Growing experience

Within topic Kidbots

12 digit product codes: Weighted sum of digits (entered one at a time)

Challenge Level: Growing experience

Within topic Error detection and correction

Add seconds, minutes and hours of two video clips

Challenge Level: Growing experience

Within topic Kidbots

Draw a 360 sided polygon

Challenge Level: Growing experience

Within topic Kidbots

Display Binary Numbers (using a variable, operator and a repeat loop)

Challenge Level: Beginner

Within topic Binary numbers

Convert a decimal number to a binary number (alternative method)

Challenge Level: Ready to expand

Within topic Binary numbers

Display number of dots for a given number of cards

Challenge Level: Growing experience

Within topic Binary numbers

Catch the mouse

Challenge Level: Growing experience

Within topic Kidbots

Display number of dots left to right with a given largest card in one line

Challenge Level: Growing experience

Within topic Binary numbers

Display binary cards with dots representing a number between 0 and 31

Challenge Level: Ready to expand

Within topic Binary numbers

Count dots on 5 black and white cards (using a loop)

Challenge Level: Growing experience

Within topic Binary numbers

Rotation of a circle

Challenge Level: Growing experience

Within topic Kidbots

Count dots on any number of black and white cards as one input (using a loop)

Challenge Level: Ready to expand

Within topic Binary numbers

12 digit product codes: Check if total is a multiple of 10 (entered one at a time)

Challenge Level: Growing experience

Within topic Error detection and correction

Draw different types of angles

Challenge Level: Growing experience

Within topic Kidbots

Binary representation of any decimal number by playing musical notes

Challenge Level: Ready to expand

Within topic Binary numbers

Add in parts (add a 2-digit number to a 1-digit number)

Challenge Level: Growing experience

Within topic Kidbots

Draw a star with any odd number of points

Challenge Level: Ready to expand

Within topic Kidbots

Draw a star without the crossing lines

Challenge Level: Growing experience

Within topic Kidbots

13 digit product codes: Weighted sum of digits (entered one at a time)

Challenge Level: Growing experience

Within topic Error detection and correction

Add in parts (quiz)

Challenge Level: Try it out

Within topic Kidbots

13 digit product codes: Check if total is a multiple of 10 (entered one at a time)

Challenge Level: Growing experience

Within topic Error detection and correction

Draw a square (with a loop)

Challenge Level: Beginner

Within topic Kidbots

Calculate the last digit of a credit card number

Challenge Level: Ready to expand

Within topic Error detection and correction

Calculate the exponents of numbers

Challenge Level: Growing experience

Within topic Kidbots

13 digit product codes: Calculate the last digit (one line of input)

Challenge Level: Ready to expand

Within topic Error detection and correction

Check if a series of numbers are divisors of another number

Challenge Level: Growing experience

Within topic Kidbots

Count dots on 5 black and white cards as one input (without a loop)

Challenge Level: Growing experience

Within topic Binary numbers

Program a Bee-Bot

Challenge Level: Beginner

Within topic Kidbots

Draw a square (without a loop)

Challenge Level: Beginner

Within topic Kidbots

Generate prime numbers up to a number

Challenge Level: Ready to expand

Within topic Kidbots

Add hours on a clock (12-hour clock)

Challenge Level: Growing experience

Within topic Kidbots

Rotation of a pentagon

Challenge Level: Growing experience

Within topic Kidbots

Add hours on a clock (24 hour clock)

Challenge Level: Growing experience

Within topic Kidbots

Draw a regular polygon

Challenge Level: Growing experience

Within topic Kidbots

Calculate the inside angles of regular polygons

Challenge Level: Growing experience

Within topic Kidbots

Draw different types of triangles

Challenge Level: Growing experience

Within topic Kidbots

Draw irregular polygons (draw a rhombus)

Challenge Level: Growing experience

Within topic Kidbots

Display Binary Numbers (using variables as an operator)

Challenge Level: Beginner

Within topic Binary numbers

12 and 13 digit product codes: Check for a valid product code (any length)

Challenge Level: Ready to expand

Within topic Error detection and correction

13 digit product codes: Check if total is a multiple of 10 (one line of input)

Challenge Level: Growing experience

Within topic Error detection and correction

Add in parts (add two 1-digit numbers)

Challenge Level: Growing experience

Within topic Kidbots

Go up 10 numbers

Challenge Level: Growing experience

Within topic Kidbots

Check if a number is a prime or not

Challenge Level: Ready to expand

Within topic Kidbots

Catch the mouse (with random backdrops)

Challenge Level: Growing experience

Within topic Kidbots

Display MIDI note names

Challenge Level: Growing experience

Within topic Kidbots