Lesson 4: Graphs: Drawing What We Measured
When you have collected several numbers, a graph is a way to draw them so you can see patterns and comparisons at a glance. Graphs turn numbers into pictures.
A bar graph uses bars of different heights to show different values. If you made a bar graph of your scores on different holes, the tallest bar would be your worst hole and the shortest bar would be your best hole.
A line graph connects dots with a line and is great for showing how something changes over time. If you make a line graph of your total score every time you play, the line going down means you are improving. A line going up means the rounds have been harder.
Scientists, coaches, and golfers all use graphs. The numbers tell you what happened. The graph shows you what it means — whether things are getting better, worse, or staying the same.
A bar graph compares different values side by side. A line graph shows change over time.
Graphs turn numbers into pictures — making patterns and trends easier to see.
Draw two graphs in your math journal. (1) A bar graph of your scores on each hole in your most recent round — one bar per hole, with the height equal to your score. Colour in red any holes that were over par and green any holes at or under par. (2) A line graph of your total score each time you have played this week or month — even if you only have two or three rounds, start the graph now and keep adding to it.