📊 Bar Graphs and Time Graphs

What you’ll learn

1. Bars That CompareRead a bar graph and answer comparison questions from it.A bar graph turns numbers into bars — the taller the bar, the bigger the number. Because every bar starts at the same zero line, equal heights mean equal amounts. You can read straight off the bars to find the biggest, the smallest, and how many more one has than another.
2. Time Graphs Tell a StoryRead a time graph showing how one thing changes across time.A time graph has time along the bottom and joins its points into a line. It shows how one thing changes — temperature climbing through the afternoon, or a bean plant growing taller each week. Follow the line to read the value at any point in time.
3. Reading the PictureInterpret whether a graph is rising, falling, or staying the same.The shape of a time graph tells its story: rising means growing or warming, falling means getting smaller, and flat means no change. With bars for comparing and lines for change over time, you can read the story inside almost any graph you meet.

Questions this course answers

Grounded in trusted sources

• BBC Bitesize — Maths
• Khan Academy — Math
• NCTM — Illuminations

Every Wunder lesson is built from real, reputable sources — never invented.

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