Data Detectives: What's the Story?

Data Detectives: What's the Story?

Year 7 Mathematics & Statistics Investigating with National Data 60-minute Investigation

What Makes a Good Detective?

Think about detectives in movies or books What skills do they need? How do they solve mysteries?

Reporter vs Detective Questions

Reporter Questions: Simple, one-answer facts Detective Questions: Complex patterns and comparisons Today we're being DATA DETECTIVES!

Reporter vs Detective: The Difference

{"left":"Reporter Question: 'Who is the tallest person in our class?'\nDetective Question: 'Are Year 7 students usually taller than Year 4 students?'\nLooks at ONE person\nLooks at WHOLE GROUPS","right":"Easy to answer\nMore interesting to investigate\nBoring!\nReveals patterns!"}

Quick Practice: Reporter or Detective?

Read each question Decide: Reporter or Detective? Explain your reasoning

Detective Mindset

We don't care about one single dot; we care about the whole cloud of dots!

The 'I Wonder' Formula

Year 7s love templates! Here's your detective question formula Fill in the blanks to create investigations

I Wonder Formula Template

Try the Formula Together

Example 1: Year 7s vs Year 4s - foot size Example 2: Walking vs car - travel time Your turn to create one!

Meet Your Data: NZ Schools Survey

Real data from 500 New Zealand students Ages, heights, travel methods, and more This is YOUR generation's story!

The Three-Point Check

Every data detective needs these skills: 1. Find the CLUMP (Center) 2. Measure the STRETCH (Spread) 3. Spot the LONERS (Outliers)

The Clump: Finding the Center

{"left":"Where is the biggest pile of data?\nIs Group A's pile higher/lower than Group B's?","right":"Like finding where most people gather at a party\nThis tells us the 'typical' value for each group"}