Graphs and charts help us understand data by showing it visually. A good graph can communicate information much faster than a table of numbers!
π Types of Graphs
π
Bar Graph
Comparing different categories
e.g., favourite sports in class
π
Line Graph
Showing change over time
e.g., temperature during a week
π₯§
Pie Chart
Parts of a whole (percentages)
e.g., how I spend my day
π
Pictograph
Using pictures to show amounts
e.g., pets owned by students
π·οΈ Parts of a Graph
- π Title β what the graph is about
- π’ Axes β the lines that frame the graph (X = horizontal, Y = vertical)
- π·οΈ Labels β what each axis represents
- π Scale β the numbers along the axes
- π¨ Key/Legend β explains colours or symbols (if needed)
β Choosing the Right Graph
- Bar graph β comparing categories (sports, colours, animals)
- Line graph β change over time (growth, weather, progress)
- Pie chart β parts of a whole (percentages, proportions)
- Pictograph β simpler data, younger audiences
π Reading Graphs
Questions to Ask
- What does the title tell me?
- What do the axes represent?
- What is the highest/lowest value?
- Are there any patterns or trends?
- What conclusions can I draw?
βοΈ Activities
Survey your class on favourite fruit. Create a bar graph with your data.
Data: Apple ___, Banana ___, Orange ___, Kiwifruit ___, Other ___
Draw your bar graph here (include title, labels, scale)
π©βπ« Teacher Notes
- Mathematics: Statistics β data representation