Bring numbers into the things you do for fun: music theory, model railways and tabletop game design – scales, ratios, odds and budgets, with every calculation checked as you build it.
Learn music theory by counting semitones. You will number the notes, measure intervals, build scales from step patterns and chords from stacked thirds, transpose songs, walk round the circle of fifths, find where the frets on a guitar neck go and count rhythms and bars, with every cell checked as you go.
Plan a model layout that looks and runs right: convert real sizes to common model scales, work out scale speeds, gradients and the climb of a helix, check curve radii against train lengths, count track pieces and costs for a plan and write a fast-clock timetable, with every cell checked as you go.
Design and balance your own board or tabletop game: build dice distributions by enumeration, find the chance of reaching a target number, compare advantage rolls, calculate expected damage against armour, work out card-draw odds without special functions, balance units with point costs and analyse your playtest logs, with every cell checked as you go.
Go from a furniture sketch to a cut list and a price. You will derive part sizes from overall dimensions with joinery allowances, cut parts from boards and sheets with simple cutting plans, compute yield and waste, allow for wood movement with fictional coefficients, plan finishing coats and price a commission piece, with every cell checked as you go.
Bring order and numbers into your family tree: count ancestors per generation and see pedigree collapse, number ancestors with a standard pedigree scheme, work out cousin degrees and «removed» steps, estimate missing birth years from records, check timelines for impossible dates and track your research, all with a fictional family and every cell checked as you go.
Use simple maths to draw and paint more accurately: measure proportions in head units, enlarge a sketch with the grid method, place objects in one- and two-point perspective using similar triangles, set up thirds and golden-ratio grids, mix colours in parts and amounts, fit images to canvas sizes and plan mats and frames, with every cell checked as you go.
Pick a course, pay once and start right away. Your progress is saved in your account.
