Pictograph and Bar Graph Maker: Keys, Scales, Tallies and the Mean

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Opens on Chapter 19’s example: books read, with each star worth 2 books.

Labels

Numbers

Each symbol is worth

Bar graph scale counts by

Start the bar graph’s axis at try a bigger number to see the trick

Load another example from the book

Enter the numbers from the worksheet, then press Show me.

From the book, Chapter 19. With each star worth 2 books, Hugo’s 7 books are 3 and a half stars, and the four children read 27 books in all. The mean of 4, 7, 5 and 8 is 24 ÷ 4 = 6: level the towers and each is 6 cubes tall. A bar graph of 40 and 44 that starts at 38 makes one bar look three times the other.

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