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Learn about Earth in Spanish!

Learn basic science and have fun with me.... I was a scientist for 20 years!

社会人になったからこそ、今一度数学を学びなおしてみませんか？？

社会人向けの高校数学の基礎です。

社会人向けの理科基礎（化学基礎・物理基礎）の講座です。

Lesson where English used in science is taught. For pre-intermediate and intermediate young students passionate about science.