Statistics - Comparison, Sum and Difference - Presentation

The teaching slides for the lesson on 'Comparison, Sum & Difference' in statistics provide a structured approach for students to enhance their understanding of interpreting charts and performing basic operations with data. In this lesson, students are encouraged to discuss and define the terms 'comparison', 'sum', and 'difference', reflecting on their previous use in mathematics. They are then presented with various activities involving pictograms and tables, where they must calculate the difference in points between teams or shapes, the total sum of points for certain groups, and the additional points needed for one group to match another. For example, they might determine that the Sycamore team has 15 more points than the Ash team, or that the Beech and Oak teams together have 140 points.

Further activities challenge the students to generate questions based on a given table of votes for different activities such as bowling, cinema, and ice-skating. They are tasked with calculating the total number of votes and making comparisons, such as finding out how many more people voted for one activity over another. Additionally, students are prompted to collect their own data on chosen topics, record it in a table, and then represent it using a pictogram or bar chart, justifying their choice of representation. Critical thinking is encouraged by asking the students to identify mistakes in data interpretation, as in the case of Tia who misread a chart, and to verify statements based on visitor numbers to various attractions, determining their truthfulness. The lesson combines independent work with group discussions to foster collaborative learning and deepen statistical comprehension.