HIGH SCHOOL

Geometry 1A

This course covers the topics for the first semester of Geometry 1, and is aligned with California Common Core State Standards (CA CCSS.)

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$99

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FORMAT: Self-paced, online, video-based
LEVEL: High School
CREDITS: 5 (one semester)

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Full refund if you complete the entire course and don't pass.

Overview

Geometry 1A introduces students to the fundamental concepts of geometry, beginning with points, lines, planes, measurement, angles, and coordinate geometry. Students develop logical reasoning and learn to construct geometric proofs while exploring parallel and perpendicular lines, transformations, and congruent triangles. The course also covers important properties of triangles, including midsegments, perpendicular and angle bisectors, medians, altitudes, and triangle inequalities.

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RECOMMENDED AGES: High School
CREDITS: 5 (one semester)

CURRICULUM

Course contents

  • 1.1 Points, Lines, & Planes
    1.2 Measuring Segments
    1.3 Using Midpoint and Distance Formulas
    1.4 Perimeter and Area in the Coordinate Plane
    1.5 Measuring Angles
    1.6 Pairs of Angles

  • 2.1 Deductive vs. Inductive Reasoning
    2.2 Conditional Statements
    2.3 Point, Line, & Plane Postulates
    2.4 Reflexive, Symmetric, & Transitive Properties
    2.5 Different Types of Proofs
    2.6 Indirect Proofs

  • 3.1 Types & Parts of Angles
    3.2 Angle Relationships
    3.3 Parallel Lines & Transversals
    3.4 Parallel & Perpendicular Lines

  • 4.1 Translations
    4.2 Reflections
    4.3 Rotations
    4.4 Dilations
    4.5 Compositions of Transformations

  • 5.1 Definition of Congruent Figures
    5.2 Proving Triangles Congruent by SSS & SAS
    5.3 Proving Triangle Congruent by ASA, AAS, & HL
    5.4 CPCTC (Corresponding Parts of Congruent Triangles are Congruent)
    5.5 Isosceles and Equilateral Triangles

  • 6.1 The Triangle Midsegment Theorem
    6.2 The Circumcenter- Perpendicular Bisectors of a Triangle
    6.3 Angle Bisectors
    6.4 The Incenter- Bisectors in Triangles
    6.5 The Centroid- Medians of Triangles
    6.6 The Orthocenter- Altitudes of Triangles
    6.7 Inequalities in One Triangle
    6.8 Inequalities in Two Triangles

UNIT 1, LESSON 1.1

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Parallel Lines & Transversals

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