Page 1: Diagramy i wykresy (Diagrams and Charts)

This page introduces the lesson on diagramy i wykresy klasa 8 nowa era, covering various exercises related to data interpretation and statistical analysis. The content is structured to help students develop skills in reading and analyzing different types of visual data representations.

Highlight: The lesson focuses on practical applications of diagrams and charts in mathematical problem-solving.

The page includes several exercises that demonstrate the use of percentages and data visualization:

Exercise 85.9 deals with temperature readings, showing a peak of 23.5°C at noon.

Exercise 1 on page 11 introduces percentage calculations, with values ranging from 25% to 100%.

Example: One calculation shows 36% divided by 4, resulting in 9%.

The page also presents a bar chart illustrating grade distributions, including categories such as "ndst" (unsatisfactory), "dop" (passable), "dst" (satisfactory), "db" (good), "bdb" (very good), and "cel" (excellent).

Vocabulary: "Cel" in this context likely stands for "celujący," which is the highest grade in the Polish grading system, equivalent to an A+ or excellent.

Several percentage-based calculations are demonstrated, such as:

• (565 - 20%) ÷ 5
• 25 - 100% calculations in various contexts

Definition: The term "średnią arytmetyczną" refers to the arithmetic mean, which is a fundamental concept in statystyka i prawdopodobieństwo klasa 8.

The page concludes with a date notation (06.09.22), suggesting this lesson or exercise set was created or assigned on September 6, 2022.

Highlight: This karta pracy (worksheet) provides a comprehensive overview of czytanie diagramów klasa 8 zadania, offering students practical exercises to enhance their understanding of statistical concepts and data interpretation skills.