Four games from SNAPLACE in Tokyo, each built around one school subject: chemistry, physics, math and geometry. You drop elements to make compounds, tune a machine until the cargo lands, move a parabola until the light reaches the lighthouse. The subject is what you do with your hands.
All four are available in English. Each has a free part to try before you buy.
A falling-block puzzle for chemical reactions. Drop elements and ions side by side, and a compound forms only when the bonds and charges balance.
A physics repair adventure. Work out what broke, test it by experiment, and build the formula yourself to fix it.
An observation puzzle where equations are machines you operate. Predict, press Observe, then adjust, from Math I to III.
A geometry game devoted to angles and areas, from elementary puzzles to high-school trigonometry, vectors and integrals. Every problem is generated on the spot.
More titles are available in Japanese, including history, classical Japanese and elementary social studies. See the Japanese list