Author note — to cover (Higher)

Higher only. Draw box plots on a scaled axis from five given values, from a small ordered list, or from readings taken off a cumulative frequency graph: minimum, lower quartile, median, upper quartile, maximum. Construction only; reading and comparing come later. No outlier-whisker conventions, which are A level. (S4)

• Fluency — direct questions on drawing a box plot, limited to this lesson's stated scope (4 questions).
• Application — use the same skill in unfamiliar or contextual questions without introducing a later method (4 questions).
• Check — questions built around the exclusions and likely misconceptions named in the lesson brief (4 questions).