Froggy's River HopNEW
Help Froggy cross the river by finding all possible safe paths! A fun introduction to dynamic programming.
Cosmic Base Converter IIINEW
Convert a number from one alien base system to another, using Earth's Base-10 as the universal bridge.
Cosmic Base Converter II: Probe ProgrammerNEW
Learn to convert decimal numbers to binary, octal, or hexadecimal. Master the 'division with remainder' method in our new interactive game!
Cosmic Base ConverterNEW
Learn to convert between binary, octal, decimal, and hexadecimal with our fun, interactive space-themed game. Master number systems today!
Time Base ConverterNEW
Convert a given duration into different time units (days, hours, minutes). Understand how time works as a multi-base number system.
Insertion Sort: Librarian's Challenge
Learn the insertion sort algorithm by organizing a library shelf, inserting books one by one into their correct sorted position.
Selection Sort: Cargo Manager
Learn the selection sort algorithm by managing a busy cargo dock, finding the lightest box in each pass.
Bubble Sort: Potion Master
An interactive game to learn the bubble sort algorithm by arranging potions of different weights.
Binary Search: Alien Code
An interactive game to learn and master the binary search algorithm by finding a secret code.
General's Horse: Shortest Path Challenge
An interactive game to solve the classic General's Horse problem, finding the shortest path using geometric reflection.
Zeno's Ladder: The Paradox of the Climb
Experience Zeno's paradox firsthand by trying to climb a mountain one step at a time.
The Bird and Two Trains Puzzle
A classic relative speed puzzle. Calculate the total distance a bird flies while two trains travel towards each other. A great test of lateral thinking.
Staircase Climber: A Recursion Puzzle
A classic puzzle about finding the number of ways to climb stairs, which introduces the concept of recursion and the Fibonacci sequence.
Unfolding a Cube: How Many Unique Nets?
Challenge your spatial reasoning by figuring out all the unique ways to unfold a standard cube into a 2D pattern. A classic puzzle in the world of geometry.
Dimension Explorer
Embark on an interdimensional journey to understand the universe's building blocks!
Matchstick Puzzle: 4 Triangles with 6 Sticks
A classic lateral thinking puzzle. Can you form 4 equilateral triangles using only 6 matchsticks? Think outside the box!
Pythagorean Theorem: A Visual Proof
This animation demonstrates the Pythagorean theorem by rearranging four identical right triangles within a larger square, showing that a² + b² = c².
Prime Factorization Tree
Interactively break down any composite number into its prime factors. Grow a tree of numbers and discover the fundamental theorem of arithmetic!
The Binomial Square
Visually explore the formula (a + b)² = a² + 2ab + b² by dividing a square's area. See how algebra and geometry connect!
Distributive Law Explorer
An interactive, visual tool to help understand the distributive law of multiplication, a * (b + c) = a * b + a * c, using shapes and colors.
Abstract Shapes Puzzle
Solve the mystery of the shapes! Each shape represents a unique number. Can you find their values?
Payment Methods
Calculate the number of ways to pay a certain amount using 1, 2, 5, and 10 currency notes.
Count the Rectangles
In the figure below, there are 5 squares connected in a row, forming a larger rectangle. How many rectangles are there in total in this figure?
Straight vs. Flush
Which poker hand is more likely: a straight or a flush? Test your probability skills!
My Birthday Probability
What's the chance someone in your class shares your birthday?
Birthday Paradox
Explore the surprising probability of shared birthdays in a group!
Balance Scale Puzzle
You have a balance scale and three weights: 1g, 3g, and 9g. How many different integer weights can you measure? Remember, weights can be placed on either side of the scale.
The Seven Bridges of Königsberg
A famous old puzzle about a city, its river, and its seven bridges.
The Mystery of the Fake Coin
Help the detective find the one tricky coin among 12! Is it lighter or heavier? Use the magical balance scale to find out in the fewest tries possible!
Empty Bottle Exchange Puzzle
Solve the classic empty bottle exchange riddle: 3 empty bottles for 1 new bottle. How many can you drink?
✨ Magic Number Triangle ✨
Place numbers 1-6 in the triangle so that each side sums to the same value. A fun math puzzle!
Sally's Sisters Riddle
Test your logical thinking with this engaging family riddle. Can you figure out how many sisters Sally has?