Geometry
2026 Spring
Geometry B
Online
Instructor: Phan
Wednesday 6 – 8PM CST
Dates: Feb 4 to April 29
No Class Date: March 18
Prerequisite: Geometry A
Fee: $729
2025 Fall
Geometry A
Online
Instructor: Phan
Wednesday 6– 8PM CST
Dates: Sept 10 – Dec 10
No Class Date: Oct 15, Nov 26
Prerequisite: Algebra 1
Fee: $729
Class Description: Geometry is the branch of mathematics mainly concerned with two and three-dimensional figures and their properties. High school geometry focuses on understanding and applying geometric concepts and principles. Students explore fundamental shapes and their properties, including points, lines, angles, triangles, polygons, and circles. The curriculum covers reasoning and proofs, using deductive logic to establish theorems and solve problems. Key topics include triangle congruence and similarity, properties of quadrilaterals, coordinate geometry applications, area and volume calculations, and geometric transformations like translations and rotations. Additionally, students are introduced to basic trigonometric concepts, such as sine and cosine, to solve real-world problems involving right triangles. Overall, the course emphasizes critical thinking, problem-solving, and the connection between algebra and geometry. Geometry A is the first course of a two-semester series.
Recommended Grades: 7-10
Prerequisite: Completion of Algebra 1
Suggested Course Materials
- A laptop, a Chromebook or a tablet
- Notebook
Fall: Geometry A
Topics
- Foundations for Geometry
- Points, Lines and Planes
- Distance and Midpoints
- Angle Relationships
- Reasoning And Proof
- Inductive Reasoning and Conjecture
- Conditional Statements
- Deductive Reasoning
- Postulates
- Algebraic Proof
- Proving Segment and Angle Relationships
- Parallel and Perpendicular Lines
- Parallel Lines and Transversals
- Slopes of Lines
- Equations of Lines
- Proving Lines Parallel
- Perpendiculars and Distance
- Triangles and Geometric Constructions
- Classifying Triangles
- Angles of Triangles
- Congruent Triangles
- Proving Congruence
- Isosceles Triangles
- Relationships in Triangles
- Bisector, Median and Altitude
- The Triangle Inequality
Spring: Geometry B
Topics
- Similar Triangles
- SSS, SAS, and AA
- Similar Triangles Proof
- Parts of Similar Triangles
- Polygons and Quadrilaterals
- Interior and Exterior Angles of Polygons
- Parallelograms and Parallelogram Proofs
- Rectangles, Rhombi and Squares
- Trapezoids and Kites
- Right Triangles and Trigonometry
- Pythagorean theorem
- Special Right Triangles
- Similarity in Right Triangles
- Trigonometry: Ratios & Finding Missing Sides and Angles
- Angle of Elevation and Depression
- Law of Sines and Cosines
- Transformations
- Translation, Reflection, Rotation and Dilation
- Symmetry
- Circles
- Parts of Circles
- Area and Circumference
- Arc Lengths
- Angles
- Tangents
- Segment Lengths
- Equations of Circles
- Volume and Surface Area
- Area of Plane Figures, Sectors
- Area of Composite and Regular Figures
- Surface Area of Prisms, Cylinders, Pyramids and Cones
- Volume of Prisms, Cylinders, Pyramids and Cones
- Review
Homework
Weekly homework will be assigned. It will be posted as pdf files in Canvas. Answers will be posted for all homework. Students are expected to complete and check homework by themselves. Teachers may go over selected homework problems at the beginning of each class.
Students should expect to spend 2 hours on homework problems each week.
Ms. Phan graduated with a B.A in Mathematics in 2006 and has 17 years of teaching experience. She is currently teaching Geometry Pre AP, Contest Math, and Algebra 1 Pre AP in Fort Bend ISD.
Ms. Phan is student-centered and it is her responsibility to help maximize students’ learning abilities. Her goal is to assist students in mastering mathematical concepts by translating them to simple terms that enables success.

