How to calculate the median of a data set.
How to define a median in a triangle.
How to distinguish between mean, median and mode.
How to relate corresponding altitudes, medians and angle bisectors in similar triangles.
How to define a midsegment in a triangle.
How to identify the centroid and the way it divides each of the medians.
How to identify a segment from the vertex angle in an isosceles triangle to the opposite side.
Overview of how to calculate and when to use mean, median, and mode
Short, helpful video on ACT prealgebra by top ACT prep instructor, Devorah. Videos are produced by leading online education provider, Brightstorm.
How to define point of concurrency; how to identify the four main points of concurrency in triangles.