wunder beta📋 Reading Graphs and Tables
Pull answers out of bar graphs, line graphs, timetables, and two-way tables — find differences, totals, and the exact bus you need to catch.
What you’ll learn
- Reading Bar GraphsRead and compare values from a bar graph.Bar graphs compare amounts across categories. Read a bar's height for 'how many?', find the tallest for 'which is most?', and subtract two bars for 'how many more?'. It turns a table of scores into a picture you can read instantly.
- Line Graphs Over TimeRead values, peaks, and differences from a line graph.Line graphs join points to show change over time. The highest point is the greatest value, the lowest is the least, and reading two points then subtracting gives a difference. Lines even let you estimate values between the marked points.
- Reading TablesRead a value from a table by row and column.Tables organise data in rows and columns. To find a value, choose your row and your column; the number where they meet is the answer. This same read-across-and-down move unlocks every kind of table.
- Timetables and Two-Way TablesRead timetables and complete two-way tables.Timetables are tables of times: rows are stops, columns are buses, so reading across a stop's row finds its departures. Two-way tables sort data two ways at once, and because edge totals must match the inside numbers, you can subtract to fill any missing cell.
Questions this course answers
On a temperature line graph, the warmest day is at the:
The highest point on the line is the greatest temperature — the warmest day.
April had 70 mm of rain and June had 30 mm. The difference is:
70 − 30 = 40 mm more rain fell in April.
In a table, you find a value by reading:
The number sits where the row and column meet.
On a timetable, to find when a bus leaves your stop you:
Rows are stops and columns are buses; read across from your stop.
A bar graph is best for:
Bars compare amounts across different categories at a glance.
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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