Differentiated histograms lesson. Essential questions where students are to find the frequency density, excel questions where students find the frequency density and draw the histogram. Challenge questions where the students have to work backwards to find missing frequencies. The students have handouts that they can use to stick in their books instead of drawing it out themselves. There is a plenary question that is an exam question. There are also success criteria for the lesson so that students understand where they need to get in the journey of the lesson.