3-4 lessons, divided into four distinct parts:
Using frequency density and bar widths to find group frequencies.
Drawing histograms with unequal bar widths.
Interpreting histograms with unequal bar widths.
Estimate values from an histogram.
Each part includes a step by step guide, worked examples, practice questions with solutions, and student worksheets.
This interactive version includes Teachers’ Notes, moveable objects including bars.