This video highlights an interesting problem your pupils will find. Instead of solving an inequality for a value or set of values, this problem requires that the learner construct an inequality and interpret its meaning by abstract...

This inequality word problem would make a good warm-up activity for a class studying single-variable inequalities. This video creates and solves an inequality based on a short-word problem about unit cost.

In a video that is quite involved, algebraically, Sal proves that the distance of the foci from the center of a hyperbola is the square root of a2+b2. Since the algebra shown here is challenging, this video might be appropriate as an...

If the square root of negative one exists, where is it on the number line? A math video presents a geometric representation of complex numbers and the complex plane, and then compares it to the geometric representation of real...

Diabetes is the most common endocrine disorder in the United States, affecting about eight percent of the total population. The working parts of the endocrine system are examined in a video that demonstrates how cells receive...