seegongsik·A world understood by intuition
See and learn
Instead of memorizing formulas, move the diagram and watch the idea click. From grade school to university engineering, in five languages.
Live diagramy = sin θ
A point going around a circle traces a sine wave. Every lesson has a diagram like this you can move yourself.
382
school lessons
348
university engineering lessons
132
computer science lessons
40
everyday whys
5
languages
Grade 1Grade 3 MathGrade 5 MathGrade 1 ScienceGrade 3 ScienceGrade 5 ScienceGrade 7 MathGrade 9 MathGrade 8 ScienceMathLimits and calculusCalculusPhysicsChemistryBiologyEarth ScienceCircuit AnalysisElectromagneticsPower SystemsCommunicationsstrength of materials explaineddynamics explainedthermodynamics explainedfluid mechanics explained
Grade 2 MathGrade 4 MathGrade 6 MathGrade 2 ScienceGrade 4 ScienceGrade 6 ScienceGrade 8 MathGrade 7 ScienceGrade 9 ScienceExponentials and trigonometryProbability & StatisticsGeometryAdvanced physicsAdvanced chemistryAdvanced biologyAdvanced earth scienceElectronicsElectric MachinesSignals, Systems and Controlengineering mathematicsprobability and statistics explainedmechanical vibrations explainedstatics explainedquantum mechanics explained
01
What would you like to learn?
Cogito
Inside computersNEW
Eight tracks inside computers, starting with structure.
132lessons
Uni
Science & engineering subjectsNEW
Electrical, signals, mechanics, math, and natural-science courses — intuition first. Start with engineering mathematics, Circuit Analysis, or statics.
348lessons
Why
Things you've always wondered
Five kinds of why, starting with everyday and principles.
40stories
Original
School subjects
School subjects grade by grade, elementary to high school.
382lessons
Languages
Japanese · Chinese · English
Pick a language, then sentences, exams, or roots.
SEEGONGSIK FOR AUSTRALIA
Visual maths & science for Australian classrooms
392 interactive units mapped to the Australian Curriculum V9, Foundation to Year 10. Free, with no logins and no ads, ready for the classroom screen.
240 maths units152 science units392 teacher packsFoundation to Year 10
02
Don't memorize. See it.
01 · See itThe diagram moves firstWe don't make you memorize formulas. Show the phenomenon first, and once intuition forms, the formula follows naturally. The same goes for language, and for how things work.
02 · Touch itDrag it and watch it changePush a slider and the graph and the numbers change on the spot. Ideas you have handled yourself stick.
03 · AnywhereOn your phone, in five languagesWorks on phones, tablets and computers. Korean, English, Japanese, Chinese and Spanish.