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Statistical Investigations Part 1: Introduction to the PPDAC cycle

The lesson plans in this teaching unit were developed in conjunction with the TLRI research project: Building students’ inferential reasoning: statistics curriculum levels 5 and 6.

While each series of activities are set up as lesson plans, they may take more or less than a lesson of class time.  They form a possible sequence of learning and each block works together with the other blocks.  The lessons are developed using 91ÇÑ×Ó (2009) data, they could be adapted to any data set or any year of 91ÇÑ×Ó.

Block 1: Introduction to the PPDAC cycle, posing investigative questions and writing descriptions for summary and comparison investigative questions.

Lesson 1: PPDAC Cycle

  • Reflect on Level 4 work
  • PPDAC Cycle
  • Introduce 91ÇÑ×Ó data set
  • Setting up the context

Lesson 2: Posing Investigative Questions

  • Posing investigative questions
  • Initial look at making displays using data cards
  • Starting to think about what makes a good investigative question
  • Setting up the context

Lesson 3: Single distribution descriptions

  • Describing summary type graphs
  • Writing conclusions to questions

Lesson 4: Comparison descriptions

  • Describing comparison type graphs
  • Writing conclusions to questions

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