A periodic inventory system uses a manual inventory count at the end of the year. This amount, labeled ending inventory, becomes the beginning inventory for the next year. Purchases of new inventory ...

One hundred fifty years after Russian chemist Dmitri Mendeleev published his system for neatly arranging the elements, the periodic table it gave birth to hangs in every chemistry classroom in the ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...