1. Key Stage 3 National Strategy Securing progression in handling data © Crown Copyright 2003 Year 8 slides

2. © Crown Copyright 2003 Note to teachers The following 16 still and animated slides are for use with the Interacting with mathematics in Key Stage 3 Year 8 handling data mini-pack. They can be used as alternatives to the poster and transparencies provided with the mini-pack. They are intended to provide the focus for whole class discussion, as suggested in the Year 8 handling data unit. The file ‘Y8 slide references’ on the CD-ROM ‘Securing progression in handling data’ cross-references each slide with the phases of the Year 8 unit.

3. The handling data cycle Specifying and planning Collecting data Interpreting and discussing Processing and representing evaluate results © Crown Copyright 2003

4. Television Number of hours watched Number of males Number of females 0 – 9 10 – 19 20 – 29 30 – 39 over 39 18193317131315372114 Hypothesis: Pupils watch more TV than adults

5. Cycling Hypothesis: Males who cycle to school are taller than those who don’t Height (cm) Total number of males Males who cycle h  140 140  h  150 150  h  160 160  h  170 170  h  180 180  h  190 190  h  200 h  200 4 26 68 109 89 40 9 0 2 3 20 34 23 11 1 0

6. 0 1 2 3 4 5 >5 Number of cans drunk in last 2 days 876543210876543210 Frequency (1000s) Drinks Hypothesis: Boys drink more than girls male pupils female pupils 543210543210

7. Football: Drawing pie charts Accurately construct a pie chart for one of the bar charts. Sketch pie charts to display this data. Compare the similarities and the differences between the two charts. Time of goals (Premiership) 16/12/01Time of goals (Second Division) 16/12/01 65432106543210 14 12 10 8 6 4 2 0 022.54567.590 Time (min) Frequency

8. J F M A M J J A S O N D 20 18 16 14 12 10 8 6 4 2 0 Temperature Month London Wellington Average monthly temperature in Wellington and London