Iron, the most common metal Whiteboard exercise Play

Iron, the most common metal Student activity Play

Irreversible reactions Slideshow Play

Is the given point a solution of the system of inequalities? Game Play

Is this battery acid any good? Animation Play

Le Chatelier's principle Student activity Play

Lena's number Whiteboard exercise Play

Letters in equations Student activity Play

Life cycle of the common liverwort (Marchantia polymorpha) Animation Play

Ligand types Student activity Play

Line that is tangent to both circles Animation Play

Linear equation in one variable Student activity Play

Linear equations and their solutions Animation Play

Linear equations with many solutions Student activity Play

Linear equations with the same solution Whiteboard exercise Play

Linear equations without solutions Student activity Play

Linear equations without solutions Whiteboard exercise Play

Linear equations without solutions Whiteboard exercise Play

Linear inequalities without solution Student activity Play

Linear inequalities without solution Whiteboard exercise Play

Looking for roots Student activity Play

Making salts Student activity Play

Mass percent concentration Whiteboard exercise Play

Mass percent concentration Student activity Play

Mass spectrometer Illustration Play