Data Handling

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Data is information collected from people or about things. For example, asking children about their favourite subjects gives us data about what they like most.

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Data collection is the process of gathering information by asking questions or observing. Example: Asking classmates 'What is your favourite colour?' to collect data about colour preferences.

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Using symbols makes recording faster and easier. For example: M for Mathematics, L for Languages, A for Arts. It saves time and space when collecting many responses.

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Tally marks are lines used to count. Draw 4 straight lines, then cross them with the 5th line (||||). Each group of 5 tally marks represents 5 items. Count all groups and add remaining marks.

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A data table organizes information in rows and columns. It makes data easy to read and compare. Example: A table showing subjects and number of children who like each subject helps us quickly see whic

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'Most common' means the item that appears the most times in the data. If 8 children like Mathematics and only 3 like Arts, then Mathematics is the most common favourite subject.

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'Least common' means the item that appears the fewest times in the data. If only 2 children like Arts while 8 like Mathematics, then Arts is the least common favourite subject.

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A pictograph uses pictures or symbols to show data. Each picture represents a certain number of items. Example: Using ice cream symbols where each symbol = 2 ice creams sold.