How to estimate the instantaneous velocity of an object at t=2 by computing average velocities over shorter and shorter intervals of time.
How to calculate the mean, or average, of a list of numbers.
Understanding the acceleration of an object.
How to define the derivative of a function at a point x=a.
How matter changes phase from liquid to gas.
How matter changes phase from liquid to solid.
How to compute the average rate of change of the amount of a drug in a patient's bloodstream over an interval of time, and how to interpret whether the amount is increasing or decreasing over time.
How to find instantaneous velocity.
How to define the midsegment of a trapezoid, calculate its length, and relate it to a triangle midsegment.
Using atomic mass to understand isotopes.
How to understand the idea of slope.
Understanding the process of evaporation.