Author note — to cover

Design and criticise tally charts and grouped collection sheets: classes exhaustive and non-overlapping, a catch-all end class, correct inequality notation for continuous data, with distinct discrete and continuous versions. Include criticise-this-sheet questions. Questionnaire wording is the sibling page. Sheet design is not named in the 2013 DfE content, so keep it light. Both tiers. (S1, S2)

• Fluency — direct questions on data collection sheets, 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).