A common example of the weighted average is provided by MathWords.

This interactive tool helps students to better understanding weighted subdivision.

This is 4-problem quiz/practice. What of the following weights could be used for the subdivision algorithm to give us a fractal?

Points on the control arm: Let's start with a shape with four control points, AAAA, BBBB, CCCC and DDDD, then use subdivision with weights (1,1)(1, 1)(1,1)left parenthesis, 1, comma, 1, right parenthesis.

This activity uses baseball's slugging average to compute weighted means using summary statistics. Some students may need an explanation of the terms singles, doubles, triples, and home runs.