Equipped with several examples from the attached module and from standardized tests, Sal takes viewers through the process of prime factorization and divisibility. He demonstrates each skill several times with many different numbers,...

Learning about apoptosis and how cells can destroy themselves without any external influence is fascinating. Sal creates interest in the vast number of cells and the complexity of the human body. The likelihood of a mutation causing a...

Starting with a set of values for the x and y variables, this video shows how to tell whether these points determine a linear or non-linear function. Sal first defines linear functions in terms of the change in y over the change in x,...

Explain the concentration of free radicals and how they interact with ions and charged molecules.