15.1. Collection of Data: - Understand the concept of data collection - Learn different methods of collecting data - Practice collecting data from various sources

15.2. Arranging Data in Order: - Understand the importance of arranging data in order - Learn how to arrange data in ascending and descending order - Practice arranging data sets in order

15.3. Representing Data Using Tally Marks: - Understand the purpose of tally marks in data representation - Learn how to use tally marks to represent data - Practice representing data using tally marks

15.4. Representing Data Using Frequency Tables: - Understand the concept of frequency tables in data representation - Learn how to create and interpret frequency tables - Practice creating and analyzing frequency tables

15.5. Representing Data Using Diagrams: - Understand the different types of diagrams used for data representation - Learn how to choose the appropriate diagram for a given data set - Practice representing data using diagrams such as line plots and pictographs

15.6. Representing Data Using Bar Graphs: - Understand the purpose and structure of bar graphs - Learn how to create and interpret bar graphs - Practice creating and analyzing bar graphs

15.7. Bar Graphs Representing Small Quantities: - Understand how to create bar graphs for small data sets - Learn how to accurately represent small quantities on a bar graph - Practice creating and interpreting bar graphs for small quantities

15.8. Bar Graph Representing Large Quantities: - Understand how to create bar graphs for large data sets - Learn how to accurately represent large quantities on a bar graph - Practice creating and interpreting bar graphs for large quantities

15.9. Interpreting Bar Graphs Representing Small Quantities: - Understand how to interpret bar graphs representing small quantities - Learn how to extract information and draw conclusions from bar graphs - Practice analyzing and interpreting bar graphs for small quantities

15.10. Interpreting Bar Graphs Representing Large Quantities: - Understand how to interpret bar graphs representing large quantities - Learn how to extract information and draw conclusions from bar graphs - Practice analyzing and interpreting bar graphs for large quantities