Level 3

• I can complete the PPDAC cycle for summative, simple comparative or relationship investigations
• I can display my data using:
  • Tally charts
  • Frequency tables
  • Pictographs
  • Bar graphs
  • Strip graphs
  • Pie charts
  • Dot plots
  • Stem and Leaf
  • Line graphs
• I can choose the most appropriate display for the type of investigation and justify my choice.
• I can read information from different displays

Level 4

• I can complete the PPDAC cycle for summative, simple comparative or relationship investigations.
  • I can choose the most important variables to answer my question.
• I can discuss how and why I collect my data.
• I can display my data using:
  • Tally charts
  • Frequency tables
  • Pictographs
  • Bar graphs
  • Strip graphs
  • Pie charts
  • Dot plots
  • Stem and Leaf
  • Line graphs
  • Scatter plots
• I can choose the most appropriate display for the type of investigation and justify my choice.
• I can describe patterns, differences and similarities and associations of variables.
• I can critically evaluate an investigation
  • Data collection methods
  • Choice of displays
  • Data analysis
  • Claims

Level 5

• I can complete the PPDAC cycle for summative, comparative or relational investigations.
• I can collect data appropriately ensuring representative sampling and appropriate sample size. trying to avoid bias.
• I can use a variety of displays (and choose the most appropriate) to display patterns, comparisons or relationships.
  • Box and whisker plots
  • Histograms
• I can use measures of central tendency and spread.
• I can analyse and make conclusions from from my displays.
• I can make an informal inference when comparing 2 groups of data for a population.
• I am able to discuss sampling variation.