School Party
Screen 8 – Reviewing the Ticket Price
The last screen in the task included two items, each asking students to read a line graph showing the relationship between ticket price for 400 people on the x-axis and total cost of the party on the y-axis. On average, 16 percent of the students did not reach 8A and 20 percent did not reach 8B.
Item 8A
8A asked students how much money the class would make by selling 400 tickets for 6.50 zeds each.
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Maximum Score Points: 1
Content Domain: Data
Topic Area: Reading, Interpreting, and Representing
Cognitive Domain: Knowing
Results 8A
Exhibit 14 containing the results reveals that only 15 percent of the students on average were able to find 6.5 on the x-axis (indicated by a gridline between 6 and 7 zeds) and then read across two gridlines down to find 2600. The highest performance was 34 percent correct in Chinese Taipei, with less than one-fourth of the students responding correctly in nearly all the countries. On average across countries, a higher percentage of boys than girls responded correctly.
Item 8B
In Part B, students were asked to find the lowest ticket price that would cover the cost, if the party had a total cost of 2200. Here, students needed to find 2200 on the y-axis and then read down to x-axis. The ticket price would need to be at least 5.50 zeds (5.5 is on the gridline, but between 5 and 6 zeds).
Click video to play
Maximum Score Points: 1
Content Domain: Data
Topic Area: Using Data to Solve Problems
Cognitive Domain: Reasoning
Results 8B
Exhibit 15 shows the percentages of correct responses for the eTIMSS countries. Achievement on Part B was similar to Part A, except even a little lower—11 percent correct on average. The highest performance ranged from 20 to 22 percent correct (Hong Kong SAR, England, and the Russian Federation). Boys had higher percentages of correct responses than girls on average across countries.