Grade 9 Materials

Composing New Quadratic Equations

published on 2021-09-13 included in category Grade 9

IntroductionIn previous lessons on quadratic equations and the discriminant, we learned how to find roots by factoring, completing the square,...

Sphere

published on 2021-08-21 included in category Grade 9

IntroductionA sphere is one of the most familiar curved-surface solids in everyday life. Footballs, marbles, and many round containers are...

Discriminant Function

published on 2021-08-16 included in category Grade 9

IntroductionIn a quadratic equation, there is an important component called the discriminant. The discriminant is used to determine the type...

Quadratic Equations

published on 2021-08-08 included in category Grade 9

IntroductionConsider the following problem. A bathroom wall has a rectangular shape and will be covered with square tiles. The length...

Radical Forms and Fractional Exponents

published on 2021-07-13 included in category Grade 9

IntroductionIrrational numbers are closely related to radical forms. Numbers such as 2\sqrt{2}2, 3\sqrt{3}3, and 5\sqrt{5}5 are examples of irrational numbers...

Grade 9 Mathematics Materials

published on 2021-07-11 included in category Grade 9

Introduction This page summarizes Grade 9 mathematics materials for junior secondary school based on the revised 2013 curriculum. In general,...

Similarity and Congruence

published on 2021-01-29 included in category Grade 9

IntroductionThis lesson discusses two important geometry ideas: similarity and congruence. Both are used to compare figures based on shape, size,...

Cone

published on 2021-01-16 included in category Grade 9

IntroductionA cone is a solid with one circular base and one apex. This lesson covers the elements of a cone,...

Curved-Surface Solids

published on 2021-01-05 included in category Grade 9

IntroductionCurved-surface solids include cylinders, cones, and spheres. This article focuses on the cylinder, a solid formed by two parallel congruent...

Dilation

published on 2020-10-06 included in category Grade 9

Introduction Learning ObjectivesAfter studying dilation, students are expected to be able to: Explain dilation as a geometric transformation in contextual...

Rotation

published on 2020-10-05 included in category Grade 9

Introduction A. Learning ObjectivesAfter studying the rotation material (rotation) This is expected to: Explain geometric transformations (rotation) which is connected...

Translation

published on 2020-10-01 included in category Grade 9

Introduction Learning ObjectivesAfter studying translation, students are expected to be able to: Explain translation as a geometric transformation in contextual...

Geometric Transformation: Reflection

published on 2020-09-29 included in category Grade 9

** A. Basic Competencies 3.5 Explain geometric transformations (reflection, translation, rotation and dilation) which is connected to contextual problems.4.5 Resolve...

Quadratic Functions

published on 2020-09-25 included in category Grade 9

Introduction Basic Competencies3.2 Explain quadratic functions using tables, equations, and graphs. 3.3 Explain the relationship between the coefficients and discriminant...

Exponents

published on 2020-07-13 included in category Grade 9

A. Introduction Exponents are widely used in daily life, especially when writing very large or very small quantities. Learning exponents...