On the Wire

On the Wire, also called Sur Le Fil (SLF), is a 3D educational game that teaches science and history through activities and humor. Prof Fil teaches, while Kelhann, a mischievous little lightbulb, goes on missions. You learn by drawing, writing, calculating and wiring.

Subjects and activities

• Math: practise the four operations, signed numbers, decimals and fractions, including simplifying, adding, subtracting, multiplying and dividing them. You also learn to tell the time.
• Geometry: in the Pythagorean Room, use a ruler, compass, set square and protractor to study angles, parallel lines, triangles, quadrilaterals, perimeter, area and circles.
• Handwriting: in the Scriptorium, practise lowercase and uppercase letters and punctuation. A convolutional neural network (CNN) reads your writing and learns your handwriting.
• Electricity: learn about current, Ohm's law and power, then build real circuits in the ElectroLab. Its electronics simulator calculates every current, and a sandbox lets you build whatever you like.
• Programming: drive Robert, a robot, using its own small language.
• History of science: take a balloon trip to meet Alessandro Volta, the inventor of the battery.
• Matter: explore what the world is made of in the Experimentarium.

Lessons and exercises

Spoken lessons feature Prof Fil and Kelhann. The Grading Den contains more than forty corrected exercises, which you can first complete with assistance and then tackle freely or against the clock. MathAttack is a mental-math tower defense game where you use addition, subtraction and multiplication tables to push back the Pluss, the Minus and the Mults. An adventure map shows what each lesson unlocks next.