???????????? L' hexafluorure de soufre a une masse molaire de 146,055 grammes par mole (et non par taupe). Ce gaz est 5 fois plus lourd que l'air. Quand @nickuhas le verse, il coule sur la table et chasse l'air. Sans oxygène pour alimenter leur flamme, le
by scienceetviejunior 6 years ago | via Instagram


What if teachers could dramatically reduce the amount of time they spend reviewing and correcting student work and actually see better results in terms of student learning? - - - #learning #instagood #culture #teachersofinstagram #teachersfollowteachers
by officialascd 7 years ago | via Instagram

What if education leaders approached their work with the perspective of a designer? NEW book from @officialascd available now. #teachersofinstagram #teachersfollowteachers #teachersofig #iteachtoo #iteach #iteachhs #education #teacherlife #teacher #teac
by officialascd 7 years ago | via Instagram