ICSE Class 8 Maths, Unit 6: Data Handling

What this unit aims at

Based on children’s learning about mean, median and mode in earlier classes, in this class, children will be enabled to develop the ability to apply this learning for data with large number of observations which may require to be grouped. Avoid giving irrelevant numbers as data. Let children collect data and find an appropriate average. They will also learn to interpret pie charts being commonly seen in newspapers. Once they are comfortable with interpretation they will learn to represent data as pie charts. Understanding that the probability of chance event is a number between 0 and 1 that expresses the likelihood of the event occurring is developed in this class. Through various random experiments like tossing of coin, throwing a die, occurrence of a letter say E in random selected paragraphs etc. children should infer larger numbers indicate greater likelihood. The ability to find tha

Your child should be able to

• arrange ungrouped data into groups and represent grouped data through bar-graphs
• construct and interpret bar-graphs
• interpret simple pie charts with reasonable data numbers
• consolidate and generalise the notion of chance in events like tossing coins, dice etc. and relating it to chance in life events
• throw a large number of identical dice/coins together and aggregating the result of the throws to get large number of individual events. observing the aggregating numbers over a large number of repeated events
• make a hypothesis on chances of coming events on the basis of its earlier occurrences like after repeated throws of dice and coins

Key concepts in this unit

• Arranging ungrouped data, it into groups, representation of grouped data through bar-graphs, constructing and interpreting bar-graphs.
• Simple Pie charts with reasonable data numbers
• Consolidating and generalising the notion of chance in events like tossing coins, dice etc.
• Relating it to chance in life events.