Classroom tools
Griz
Generate competitive class quizzes. (Special mode for timestables for my daughters!)
Scrim
Pose a question, get student's answers projected on your screen straight from their device.
Pulse
Students plot themselves on your variables — see the class spread in real time.
Flare
Real-time student signals — see at a glance when your class needs help.
Dowser
Plot your ideas with moveable post-it notes, lines and arrows.
Whiteboard
Basic whiteboard app.
Tools
PeeDeeEffer
Merge/split PDFs privately on your device.
PDF Annotator
Annotate and download PDF notes.
AniPics
Find animal emojis.
IB Business Management Teacher Helper
Syllabus-aligned responses and resources for IB Business Management teachers, drawing on official IB sources.
IB Economics Teacher Helper
Syllabus-aligned responses and resources for IB Economics teachers, drawing on official IB sources.
IB Business Management Student Coach
Coaches students through IB Business Management questions rather than just giving answers. Aligned with IB syllabus and assessment.
Experiments
Picture Reveal
Click squares to reveal the hidden image.
Evolutionary Race Cars
Evolve cars to go fast or climb.
Paper Snowflakes
Cut folded digital paper.
Guess Who Strategy
Optimal questions for animal version.
Economics & Business
IB Business Management review questions
Random questions from IB topics.
Stock Simulator
Illustrating random walks.
Explaining Causation
Logical link building.
Supply and Demand
Market impact simulation.
Maths Games
Binary Counting
Practice binary number patterns and place values.
Multiplication Memory
Match multiplication facts in this memory game.
Fractions
Visualize fractions and their equivalent forms.
Number Tiles
Arrange tiles to practice reading and ordering numbers.
Maths Practice
Games
Cat Jump
Dodge the cacti — a cat-themed endless runner. How long can you last?
Kitty Maze
Guide Rainbow Cat through the maze.
Sudoku
Four difficulty levels, notes mode, and save strings to pick up where you left off.
Visualisations
Mandelbrot Set
Generate and zoom.
Chaos Visualisation
Patterns in chaotic systems.
Coordinate Inverter
Invert points around a unit circle.
Flower Generator
Math-based flower patterns.
Joined Points
Visualise distance-based connections.
Function Heat Map
Visualise two-variable functions.