Interactive demos and image generators for a Y4–Y6 maths circle in London.
Simulator for rolling 1 or 2 dice. Shows a live histogram of outcomes alongside the theoretical probability distribution; useful for demonstrating the law of large numbers.
Renderer for iterated fractals: Sierpiński triangle and carpet, Koch curve, Hilbert curve, Pythagorean tree, and others. Recursion depth is adjustable; output can be exported as PNG.
Interactive explorer for three fractals: Mandelbrot Set, Burning Ship, and Tricorn (Mandelbar). Supports zooming, adjustable colour schemes, and coordinate input to jump to specific regions.
Simulator for the chaos game that produces the Sierpiński triangle. Picks a random vertex at each step and plots the midpoint; the fractal structure emerges after enough iterations.
These tools generate images intended to be used alongside printed problem sheets — the corresponding problem text is separate. All tools let you set exact pixel dimensions and line width so the image can be placed precisely in Photoshop, InDesign, or similar.
Generates an evenly-spaced rectangular grid at a specified size, row and column count, and line width.
Generates images for combinatorics challenges on symmetric configurations: stars, hexagons, round tables with plates, bracelets, houses, and others, arranged in a tiled grid.
Generates images for map colouring challenges. Available figures: pie-sliced circles, circles with a centre region, nested circles inside a square, a 2×4 grid, and a candy shape.