← 7th Grade Math
Math 7 U3-L1 Statistics and Data Analysis

Use a Graph

A graph can tell you in one look what a table takes a minute to say, as long as you read it in the right order.

Teacher Notes

Not started yet.

Lesson Goal

By the end of this lesson your student should be able to read a bar graph, a double bar graph, a line graph and a circle graph, answer questions from them, use a trend to predict, and check the scale before answering.

Where Students Get Stuck

🚨 Reading a value off the wrong scale. If each gridline stands for 100 and the student reads it as 1, every answer is off by a lot, so the scale is the first thing to check.

Forgetting the key on a double graph. Two colors mean two different things, and a student who skips the key will compare a bar with itself.

Teaching Suggestion

Every number in this lesson is made up for practice. Find a real graph in a newspaper or an almanac and write two questions about it together, because that is the skill the lesson is for.

The site can't draw the graphs yet, so each one is given as a table of values. Sketching one from the table on paper is a good way to see what the words describe.

Key Vocabulary

Statistics
Collecting, organizing and summarizing numerical facts so you can answer questions and make predictions.
Key
The part of a graph that tells you what each color or symbol stands for.
Trend
The direction the numbers are heading over time, which a line graph shows.
Double bar graph
A graph with two bars side by side for every item, so two sets of data can be compared.
Sentence 1 of 26 Tap any sentence to start reading there
Settings

Settings

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Where to get a key. Google Cloud TTS powers the built-in voices on this page and has a free monthly allowance. ElevenLabs is worth a look if you want a more natural voice and do not mind setting up an account.

Colors

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Before You Start

The Words

The words this lesson uses. Tap a card to see what it means, then come back to them whenever a question uses one.

Part One

The Questions

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Questions about the story you just read. Pick your answer straight off, or press Find it in the story if you would rather hunt for the sentence first.

Part Two

Vocabulary Check

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The word cards are at the top of this page. Look back at them as often as you need, then answer.

When you finish: write the answers out in your own words — not copied word for word from the choices. Saying it your own way is the part that proves you understood it. Then use Print Answer Sheet for a one-page record of what was answered and scored.
Homework Sheet: UnavailableThere is no homework sheet for this lesson yet.