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Klaudia Kapicka
@klaudiakapicka_hhig
·
6 Obserwujących
Obserwuj
Kluczowe pojęcia matematyczne dla uczniów szkół podstawowych i średnich, obejmujące podzielność liczb, działania algebraiczne, geometrię i prawdopodobieństwo.
26.03.2023
2095
This page covers basic mathematical principles crucial for the egzamin ósmoklasisty z matematyki. It begins with divisibility rules, which are essential for problem-solving in number theory. The page then moves on to explain different types of numbers, including prime, natural, and integers, providing a solid foundation for more advanced mathematical concepts.
The order of operations (PEMDAS) is clearly outlined, ensuring students understand the correct sequence for solving complex equations. Algebraic expressions and their properties are introduced, preparing students for more advanced algebra in later grades.
The section on powers and exponents is particularly detailed, offering various examples and rules that will be invaluable during the exam. This is followed by an introduction to square roots, which ties in closely with the power rules.
Highlight: The divisibility rules are particularly important for quick mental calculations during the exam.
Example: For divisibility by 3, the sum of digits must be divisible by 3. For instance, 123 is divisible by 3 because 1+2+3=6, which is divisible by 3.
Vocabulary: PEMDAS - Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).
The final page of this guide covers advanced topics that are crucial for achieving a high score in the egzamin ósmoklasisty z matematyki. It begins with three-dimensional geometry, focusing on cuboids and cubes. Formulas for volume and surface area are provided, along with the number of edges and vertices for these shapes.
The concept of pyramids is introduced, with formulas for volume and surface area. Understanding these 3D shapes and their properties is essential for solving spatial geometry problems in the exam.
The page then shifts to probability, providing the basic formula for calculating probability. This topic often appears in the exam and requires a good understanding of fractions and ratios.
Finally, the guide concludes with kinematics, introducing the relationships between speed, distance, and time. These formulas are crucial for solving word problems involving motion, which are common in the egzamin ósmoklasisty z matematyki.
Definition: Probability is a measure of the likelihood of an event occurring, expressed as a number between 0 and 1.
Highlight: The formula V = (1/3) * Pp * H for the volume of a pyramid is crucial to remember for the exam.
Example: If a car travels at a speed of 60 km/h for 2 hours, the distance covered can be calculated as: S = V * t = 60 * 2 = 120 km.
This comprehensive guide covers all the essential topics for the egzamin ósmoklasisty z matematyki, providing students with the tools they need to excel in their exam.
This page focuses on geometry, particularly triangles and polygons, which are essential topics for the egzamin ósmoklasisty z matematyki. It begins with the Pythagorean theorem, a fundamental concept in geometry that relates the sides of a right-angled triangle.
The properties of equilateral triangles are explored in detail, including the relationships between the side length, height, and area. This knowledge is crucial for solving more complex geometric problems in the exam.
The page then moves on to various polygons and plane figures, providing formulas for calculating their areas and perimeters. These include rectangles, parallelograms, trapezoids, and rhombuses. Understanding these formulas and when to apply them is key to success in the geometry section of the exam.
Quote: "The sum of angles in a triangle is always 180°."
Highlight: The Pythagorean theorem (a² + b² = c²) is one of the most important formulas to remember for the egzamin ósmoklasisty z matematyki.
Example: In a right-angled triangle with sides 3 and 4, the hypotenuse can be calculated as: c² = 3² + 4² = 9 + 16 = 25, so c = 5.
This page continues the exploration of geometry, focusing on more complex shapes and angle relationships. It starts with the properties of squares, including formulas for area, perimeter, and diagonal length. These formulas are essential for solving problems involving squares in the egzamin ósmoklasisty z matematyki.
The concept of rhombuses is introduced, with formulas for area and perimeter. Understanding the properties of rhombuses can help students tackle more challenging geometry questions in the exam.
A significant portion of this page is dedicated to angles, including different types of angles (acute, right, obtuse, straight, reflex, and full rotation) and their measurements. This knowledge is crucial for solving problems involving angle relationships in various geometric figures.
The page concludes with an introduction to three-dimensional shapes, setting the stage for more advanced spatial geometry in the next section.
Vocabulary: Reflex angle - an angle that measures more than 180° but less than 360°.
Highlight: Remember that complementary angles add up to 90°, while supplementary angles add up to 180°. This is often tested in the egzamin ósmoklasisty z matematyki.
Example: In a rhombus, if one diagonal is 6 units and the other is 8 units, the area can be calculated as: A = (1/2) * 6 * 8 = 24 square units.
This page delves deeper into mathematical concepts that are crucial for success in the egzamin ósmoklasisty z matematyki. It starts with a continuation of the square root rules, providing more complex examples and properties that students should memorize.
A significant portion of this page is dedicated to unit conversions, which is a common topic in the 8th-grade exam. The conversions cover length, area, volume, and time units, providing a comprehensive reference for students.
The page concludes with an introduction to triangle geometry, including the formula for the area of a triangle and the sum of angles in a triangle. This serves as a foundation for more complex geometric concepts in the following pages.
Definition: A square root of a number is a value that, when multiplied by itself, gives the number.
Highlight: Unit conversions are crucial for solving real-world problems in the exam. Pay special attention to the relationships between different units.
Example: To convert from square meters to square centimeters, multiply by 10,000. So, 2 m² = 20,000 cm².
64
1413
8
Figury na płaszczyźnie
Figury na płaszczyźnie notatka szkolna
152
3347
8/6
Rownoległobok i romb
własności, kąty, Pole I obwód, przykładowe zadania
53
1013
5/6
Kąty - klasa 5, 6, 7
.
287
6747
8/6
Figury na płaszczyźnie
Notatka z lekcji o figurach na płaszczyźnie - teoria i przykłady
48
1804
8
Trójkąty o kątach 90°,60°,30°
Egzamin 8 klasisty.
188
4494
8/7
wielokąty foremne
notatka
Średnia ocena aplikacji
Uczniowie korzystają z Knowunity
W rankingach aplikacji edukacyjnych w 12 krajach
Uczniowie, którzy przesłali notatki
Użytkownik iOS
Filip, użytkownik iOS
Zuzia, użytkownik iOS
Klaudia Kapicka
@klaudiakapicka_hhig
·
6 Obserwujących
Obserwuj
Kluczowe pojęcia matematyczne dla uczniów szkół podstawowych i średnich, obejmujące podzielność liczb, działania algebraiczne, geometrię i prawdopodobieństwo.
Dostęp do wszystkich materiałów
Popraw swoje oceny
Dołącz do milionów studentów
Rejestrując się akceptujesz Warunki korzystania z usługi i Politykę prywatności.
This page covers basic mathematical principles crucial for the egzamin ósmoklasisty z matematyki. It begins with divisibility rules, which are essential for problem-solving in number theory. The page then moves on to explain different types of numbers, including prime, natural, and integers, providing a solid foundation for more advanced mathematical concepts.
The order of operations (PEMDAS) is clearly outlined, ensuring students understand the correct sequence for solving complex equations. Algebraic expressions and their properties are introduced, preparing students for more advanced algebra in later grades.
The section on powers and exponents is particularly detailed, offering various examples and rules that will be invaluable during the exam. This is followed by an introduction to square roots, which ties in closely with the power rules.
Highlight: The divisibility rules are particularly important for quick mental calculations during the exam.
Example: For divisibility by 3, the sum of digits must be divisible by 3. For instance, 123 is divisible by 3 because 1+2+3=6, which is divisible by 3.
Vocabulary: PEMDAS - Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).
Dostęp do wszystkich materiałów
Popraw swoje oceny
Dołącz do milionów studentów
Rejestrując się akceptujesz Warunki korzystania z usługi i Politykę prywatności.
The final page of this guide covers advanced topics that are crucial for achieving a high score in the egzamin ósmoklasisty z matematyki. It begins with three-dimensional geometry, focusing on cuboids and cubes. Formulas for volume and surface area are provided, along with the number of edges and vertices for these shapes.
The concept of pyramids is introduced, with formulas for volume and surface area. Understanding these 3D shapes and their properties is essential for solving spatial geometry problems in the exam.
The page then shifts to probability, providing the basic formula for calculating probability. This topic often appears in the exam and requires a good understanding of fractions and ratios.
Finally, the guide concludes with kinematics, introducing the relationships between speed, distance, and time. These formulas are crucial for solving word problems involving motion, which are common in the egzamin ósmoklasisty z matematyki.
Definition: Probability is a measure of the likelihood of an event occurring, expressed as a number between 0 and 1.
Highlight: The formula V = (1/3) * Pp * H for the volume of a pyramid is crucial to remember for the exam.
Example: If a car travels at a speed of 60 km/h for 2 hours, the distance covered can be calculated as: S = V * t = 60 * 2 = 120 km.
This comprehensive guide covers all the essential topics for the egzamin ósmoklasisty z matematyki, providing students with the tools they need to excel in their exam.
Dostęp do wszystkich materiałów
Popraw swoje oceny
Dołącz do milionów studentów
Rejestrując się akceptujesz Warunki korzystania z usługi i Politykę prywatności.
This page focuses on geometry, particularly triangles and polygons, which are essential topics for the egzamin ósmoklasisty z matematyki. It begins with the Pythagorean theorem, a fundamental concept in geometry that relates the sides of a right-angled triangle.
The properties of equilateral triangles are explored in detail, including the relationships between the side length, height, and area. This knowledge is crucial for solving more complex geometric problems in the exam.
The page then moves on to various polygons and plane figures, providing formulas for calculating their areas and perimeters. These include rectangles, parallelograms, trapezoids, and rhombuses. Understanding these formulas and when to apply them is key to success in the geometry section of the exam.
Quote: "The sum of angles in a triangle is always 180°."
Highlight: The Pythagorean theorem (a² + b² = c²) is one of the most important formulas to remember for the egzamin ósmoklasisty z matematyki.
Example: In a right-angled triangle with sides 3 and 4, the hypotenuse can be calculated as: c² = 3² + 4² = 9 + 16 = 25, so c = 5.
Dostęp do wszystkich materiałów
Popraw swoje oceny
Dołącz do milionów studentów
Rejestrując się akceptujesz Warunki korzystania z usługi i Politykę prywatności.
This page continues the exploration of geometry, focusing on more complex shapes and angle relationships. It starts with the properties of squares, including formulas for area, perimeter, and diagonal length. These formulas are essential for solving problems involving squares in the egzamin ósmoklasisty z matematyki.
The concept of rhombuses is introduced, with formulas for area and perimeter. Understanding the properties of rhombuses can help students tackle more challenging geometry questions in the exam.
A significant portion of this page is dedicated to angles, including different types of angles (acute, right, obtuse, straight, reflex, and full rotation) and their measurements. This knowledge is crucial for solving problems involving angle relationships in various geometric figures.
The page concludes with an introduction to three-dimensional shapes, setting the stage for more advanced spatial geometry in the next section.
Vocabulary: Reflex angle - an angle that measures more than 180° but less than 360°.
Highlight: Remember that complementary angles add up to 90°, while supplementary angles add up to 180°. This is often tested in the egzamin ósmoklasisty z matematyki.
Example: In a rhombus, if one diagonal is 6 units and the other is 8 units, the area can be calculated as: A = (1/2) * 6 * 8 = 24 square units.
Dostęp do wszystkich materiałów
Popraw swoje oceny
Dołącz do milionów studentów
Rejestrując się akceptujesz Warunki korzystania z usługi i Politykę prywatności.
This page delves deeper into mathematical concepts that are crucial for success in the egzamin ósmoklasisty z matematyki. It starts with a continuation of the square root rules, providing more complex examples and properties that students should memorize.
A significant portion of this page is dedicated to unit conversions, which is a common topic in the 8th-grade exam. The conversions cover length, area, volume, and time units, providing a comprehensive reference for students.
The page concludes with an introduction to triangle geometry, including the formula for the area of a triangle and the sum of angles in a triangle. This serves as a foundation for more complex geometric concepts in the following pages.
Definition: A square root of a number is a value that, when multiplied by itself, gives the number.
Highlight: Unit conversions are crucial for solving real-world problems in the exam. Pay special attention to the relationships between different units.
Example: To convert from square meters to square centimeters, multiply by 10,000. So, 2 m² = 20,000 cm².
Matematyka - Figury na płaszczyźnie
Figury na płaszczyźnie notatka szkolna
64
1413
0
Matematyka - Rownoległobok i romb
własności, kąty, Pole I obwód, przykładowe zadania
152
3347
2
Matematyka - Kąty - klasa 5, 6, 7
.
53
1013
3
Matematyka - Figury na płaszczyźnie
Notatka z lekcji o figurach na płaszczyźnie - teoria i przykłady
287
6747
14
Matematyka - Trójkąty o kątach 90°,60°,30°
Egzamin 8 klasisty.
48
1804
0
Matematyka - wielokąty foremne
notatka
188
4494
3
Średnia ocena aplikacji
Uczniowie korzystają z Knowunity
W rankingach aplikacji edukacyjnych w 12 krajach
Uczniowie, którzy przesłali notatki
Użytkownik iOS
Filip, użytkownik iOS
Zuzia, użytkownik iOS
