Geometry Online Course with Instructor

Our Best-Selling Geometry Course Paired with Live Tutoring and Instruction

What You Need to Know:
  • Weekly lesson materials sent right to your inbox, including lesson orientation videos, lesson warm-up exercises, and weekly to-do lists
  • Comprehensive course website with access to video lessons by Ph.D. and mathematician, Edward Burger, illustrated course study notes and worksheets, automatically-graded homework assignments with step-by-step feedback, course quizzes, tests, practice assessments, and exams
  • Twice-a-week live tutoring and office hours. Independent learning is approximately 5 hours per week.
  • Detailed student progress and grade reports
  • Certificate of completion and final grade report.
  • NCAA approved course
      Registration opens late July 2021.
      Interested? Sign up to be notified about course availability.

      How does the Instructor-Led version of Thinkwell Work? It's as easy as 1 - 2 - 3.
      What Parents Are Saying...
      "I love Thinkwell math! My son and I think Professor Burger is awesome. We tried a few different math programs but nothing compares to Thinkwell. The concepts are presented in a way that makes them so much easier to understand. I go through the lectures and problems with my son most of the time and I am finally learning Geometry (my nemesis in high school and college). Professor Burger uses humor which makes it even better. We will definitely continue to use Thinkwell. I am so grateful to have found it!"
      – Tina C
      "We are using Thinkwell's Geometry, and we love it. The lectures are fun and well organized. The notes for each lesson are easy to follow and provide all the info needed to complete the problems. My son is excelling with this program, and I find it very easy to jump in and help him when needed!”
      – Virginia
      "We didn't start homeschooling until last year, my daughter's freshman year. I used a different math program that had come highly recommended and it was like pulling teeth to get my daughter to do her work. She said it was too confusing. This year we started with Thinkwell's Geometry and my daughter loves it. She can't believe how much better it is to understand. Now her math is done every day without being prompted. No more tears, no more fighting. Thank you, Thinkwell!”
      – Teresa R.
      Course Overview

      What You Get

      • Year-long, online subscription to our Geometry course
      • Weekly email with course assignments and lesson plans
      • Regular student progress reports
      • Complete, detailed instructional videos
      • Instructor available via virtual office hours
      • Automatically graded assignments with step-by-step answer feedback
      • Downloadable, printable course worksheets & answer keys
      • Illustrated course study notes
      • Automatically graded section quizzes
      • Chapter & Practice tests, a Midterm & Final Exam
      • . . . and more!

      How It Works

      • Purchase the course through our online store
      • Create an account username and password which will give you access to the online Geometry course section on the start date
      • Follow assignments emailed on a weekly basis
      • Your work is automatically tracked and updated in real-time
      • Feel like you need help? Your instructor has virtual office hours
      • Transcripts, grade reports, and certificates of completion are available upon request
      About Thinkwell's Geometry Author & Instructor

      Thinkwell's Week-by-Week Syllabus for Online Geometry
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      1: Algebra Review – Part I

      AR.1 Solving Equations and Inequalities
      AR.1.1 Simplifying Expressions
      AR.1.2 Writing and Solving Two-Step Equations
      AR.1.3 Solving Two-Step Inequalities
      AR.1.4 Writing and Solving Multi-Step Equations
      AR.1.5 Solving Equations with Variables on Both Sides
      AR.1.6 Systems of Equations
      AR.2 Graphing and the Coordinate Plane
      AR.2.1 The Coordinate Plane
      AR.2.2 Equations, Tables, and Graphs
      AR.2.3 Graphing Using Intercepts
      AR.3 Ratio and Proportion
      AR.3.1 Rates, Ratios, and Proportions
      AR.3.2 Applications of Proportions
      AR.3.3 Finding and Using Percents

      2: Algebra Review – Part II

      AR.4 Operations with Polynomials and Factoring
      AR.4.1 Adding and Subtracting Polynomials
      AR.4.2 Multiplying and Dividing Monomials
      AR.4.3 Multiplying Monomials by Polynomials
      AR.4.4 Multiplying Binomials
      AR.4.5 Factoring with the GCF
      AR.4.6 Factoring x2 + bx + c
      AR.4.7 Factoring ax2 + bx + c
      AR.5 Radicals and Solving Quadratics
      AR.5.1 Radical Expressions
      AR.5.2 Solving Quadratic Equations by Factoring
      AR.5.3 Solving Quadratic Equations by Using Square Roots

      3: Points, Lines, Planes, and Angles

      1.1 Points, Lines, Planes, and Angles
      1.1.1 Understanding Points, Lines, and Planes
      1.1.2 Measuring and Constructing Segments
      1.1.3 Measuring and Constructing Angles

      4: Points, Lines, Planes, and Angles (continued)

      1.1 Points, Lines, Planes, and Angles
      1.1.4 Pairs of Angles
      Quiz – 1.1

      5: Coordinate and Transformation Tools

      1.2 Coordinate and Transformation Tools
      1.2.1 Using Formulas in Geometry
      1.2.2 Midpoint and Distance in the Coordinate Plane
      1.2.3 Transformations in the Coordinate Plane
      Quiz – 1.2

      6: Assessment

      Practice Test – 1.1 & 1.2
      Test – 1.1 & 1.2

      7: Inductive and Deductive Reasoning

      2.1 Inductive and Deductive Reasoning
      2.1.1 Using Inductive Reasoning to Make Conjectures
      2.1.2 Conditional Statements
      2.1.3 Using Deductive Reasoning to Verify Conjectures
      2.1.4 Biconditional Statements and Definitions
      Quiz – 2.1

      8: Mathematical Proof

      2.2 Mathematical Proof
      2.2.1 Algebraic Proof
      2.2.2 Geometric Proof
      2.2.3 Flowchart and Paragraph Proofs
      Quiz – 2.2

      9: Assessment

      Practice Test – 2.1 & 2.2
      Test – 2.1 & 2.2

      10: Lines with Transversals

      3.1 Lines with Transversals
      3.1.1 Planes, Lines, and Angles
      3.1.2 Angles, Parallel Lines, and Transversals
      3.1.3 Proving that Lines are Parallel
      3.1.4 Properties of Perpendicular Lines
      Quiz – 3.1

      11: Slope and the Equation of a Line

      3.2 Slope and the Equation of a Line
      3.2.1 Finding the Slope Given Two Points
      3.2.2 Slope-Intercept Form
      3.2.3 Point-Slope Form

      12: Slope and the Equation of a Line (continued)

      3.2 Slope and the Equation of a Line
      3.2.4 Slopes of Parallel and Perpendicular Lines
      Quiz – 3.2

      13: Assessment

      Practice Test – 3.1 & 3.2
      Test – 3.1 & 3.2

      14: Triangles and Congruence

      4.1 Triangles and Congruence
      4.1.1 Classifying Triangles
      4.1.2 Angle Relationships in Triangles
      4.1.3 Congruent Triangles
      Quiz – 4.1

      15: Proving Triangle Congruence

      4.2 Proving Triangle Congruence
      4.2.1 Triangle Congruence: SSS and SAS
      4.2.2 Triangle Congruence: ASA, AAS, and HL
      4.2.3 Triangle Congruence: CPCTC

      16: Proving Triangle Congruence (continued)

      4.2 Proving Triangle Congruence
      4.2.4 Introduction to Coordinate Proof
      4.2.5 Isosceles and Equilateral Triangles
      Quiz – 4.2

      17: Assessment

      Practice Test – 4.1 & 4.2
      Test – 4.1 & 4.2

      18: Midterm Assessment

      Practice Midterm Exam
      Midterm Exam

      19: Segments in Triangles

      5.1 Segments in Triangles
      5.1.1 Perpendicular and Angle Bisector Theorems
      5.1.2 Medians, Altitudes, and Midsegments in Triangles
      5.1 Review Worksheet
      Quiz – 5.1

      20: Relationships in Triangles

      5.2 Relationships in Triangles
      5.2.1 Indirect Proof and Inequalities in One Triangle
      5.2.2 Inequalities in Two Triangles

      21: Relationships in Triangles (Continued)

      5.2 Relationships in Triangles (continued)
      5.2.3 The Pythagorean Theorem
      5.2.4 Applying Special Right Triangles
      5.2 Review Worksheet
      Quiz – 5.2

      22: Assessment

      Practice Test – 5.1 & 5.2
      Test – 5.1 & 5.2

      23: Polygons and Parallelograms

      6.1 Polygons and Parallelograms
      6.1.1 Properties and Attributes of Polygons
      6.1.2 Properties of Parallelograms
      6.1.3 Conditions for Parallelograms
      6.1 Review Worksheet
      Quiz – 6.1

      24: Other Special Quadrilaterals

      6.2 Other Special Quadrilaterals
      6.2.1 Properties of Special Parallelograms
      6.2.2 Conditions for Special Parallelograms
      6.2.3 Properties of Kites and Trapezoids
      6.2 Review Worksheet
      Quiz – 6.2

      25: Assessment

      Practice Test – 6.1 & 6.2
      Test – 6.1 & 6.2

      26: Similarity Relationships

      7.1 Similarity Relationships
      7.1.1 Ratio and Proportion
      7.1.2 Ratios in Similar Polygons
      7.1.3 Triangle Similarity: AA, SSS, and SAS
      7.1 Review Worksheet
      Quiz – 7.1

      27: Trigonometric Ratios

      8.1 Trigonometric Ratios
      8.1.1 Similarity in Right Triangles
      8.1.2 Trigonometric Ratios
      8.1.3 Solving Right Triangles
      8.1 Review Worksheet
      Quiz – 8.1

      28: Assessment

      Practice Test – 7.1 & 8.1
      Test – 7.1 & 8.1

      29: Developing Geometric Formulas

      9.1 Developing Geometric Formulas
      9.1.1 Developing Formulas for Triangles and Quadrilaterals
      9.1.2 Developing Formulas for Circles and Regular Polygons
      9.1 Review Worksheet
      Quiz – 9.1

      30: Surface Area and Volume

      10.1 Surface Area and Volume
      10.1.1 Surface Area of Prisms and Cylinders
      10.1.2 Surface Area of Pyramids and Cones
      10.1.3 Volume of Prisms and Cylinders
      10.1 Review Worksheet
      Quiz – 10.1

      31: Assessment

      Practice Test – 9.1 & 10.1
      Test – 9.1 & 10.1

      32: Lines and Arcs in Circles

      11.1 Lines and Arcs in Circles
      11.1.1 Lines That Intersect Circles
      11.1.2 Arcs and Chords
      11.1 Review Worksheet
      Quiz – 11.1

      33: Angles and Segments in Circles

      11.2 Angles and Segments in Circles
      11.2.1 Inscribed Angles
      11.2.2 Angle Relationships in Circles
      11.2.3 Segment Relationships in Circles
      11.2 Review Worksheet
      Quiz – 11.2

      34: Congruence Transformations

      12.1 Congruence Transformations
      12.1.1 Reflections
      12.1.2 Translations
      12.1.3 Rotations
      12.1 Review Worksheet
      Quiz – 12.1

      35: Assessment

      Practice Test – 11.1, 11.2 & 12.1
      Test – 11.1, 11.2 & 12.1

      36: Final Assessment

      Practice Final Exam
      Final Exam
      Frequently Asked Questions About Thinkwell's Geometry

      How do Thinkwell instructor-led courses work?

      You and your student will get a weekly email with an orientation & warm-up video and a lesson plan. Your student watches short, 5-10 minute online video lessons and then completes the automatically graded exercises. Students get instant correct-answer feedback. The live instructor is available by email, and will have weekly virtual office hours.

      When does the course start?

      The course has a specific start and end date, stated above. You can purchase and register before the start date. Late enrollments are accepted for up to two weeks after the start of the course.

      What math courses should a student take?

      A typical sequence of secondary math courses completed by a college-bound student is: Grade 6 Math > Grade 7 Math > Grade 8 Math > Algebra 1 > Geometry > Algebra 2 > Precalculus. For students looking to include Calculus as part of their high school curriculum and are able to complete Grade 7 Math in 6th grade, the sequence can be: Grade 7 Math > Prealgebra > Algebra 1 > Geometry > Algebra 2 > Precalculus > Calculus.

      Is Thinkwell’s Geometry appropriate for my accelerated student?

      For advanced students, check out our Honors Geometry course.

      Does my student get school credit for Thinkwell’s Geometry?

      Only schools are accredited and Thinkwell is not a school, though many accredited schools use Thinkwell. If you're coordinating studies with a school or organization, please check with them about awarding credit for a Thinkwell course.

      Does Thinkwell's Geometry meet state standards?

      Thinkwell courses are built to national standards to be inclusive of all states. Some states set standards for what topics should be taught in a particular course. Thinkwell does not have a course version for each state. Websites such as can help you determine your state's standards.

      What if my student would like access to the course after it is over?

      You can purchase extra time in one-month, three-month, and six-month increments.

      Can I share access with more than one student?

      A subscription can only accommodate one student per username and password; additional students need to purchase separate access. This allows parents to keep track of each student's progress and grades.

      How long does it take to complete Thinkwell’s Geometry course?

      The course is organized into 36 discreet modules, and on average each module takes about a week to complete. Most students complete the course in 36 weeks, however you are welcome to move as quickly or as slowly through the content as meets your individual needs.

      Can I see my grade?

      Thinkwell’s course software tracks everything your student does. When logged in, your student can click "My Grades" to see their progress.

      How are grades calculated?

      The course grade is calculated this way: Quizzes: 40%, Chapter tests: 40%, Final Exam: 20%

      Can I get a transcript or a certificate of completion?

      Yes, both a certificate of completion and grade transcript will be provided at the end of each semester. Thinkwell will track and present a number score earned by the student, not a letter grade.

      If I change my mind and want to do a different math course, can I change?

      If you discover that you should be in a different course, contact within one week of purchase and we will move you to the appropriate course.

      Can I print the exercises?

      Yes, but completing the exercises online provides immediate correct answer feedback and automatic scoring, so we recommend answering the exercises online.

      Are exercises multiple choice?

      Most of the exercises are multiple choice and they are graded automatically with correct-answer solutions.

      Is Thinkwell's Geometry built on "continuous review"?

      Thinkwell's Geometry is carefully constructed to build on previous knowledge, reinforcing key concepts every step of the way. It is not only a reflection of empirically effective instruction, but also reflects Dr. Burger’s philosophies learned over a career of teaching mathematics, emphasizing a solid foundation that addresses why students need to learn certain concepts. Finally, Thinkwell's Geometry is intentionally designed to work for a wide variety of learning styles.

      Is there a guarantee?

      Yes, we offer a risk-free 14 day money-back guarantee.

      How does my school review this course?

      Should your school need to review a Thinkwell course for any reason, have the school contact and we can provide them access to a demo site, or provide you with a table of contents.

      How do refunds work?

      If a student leaves the course within 14 days of the start of the course, a full refund is granted. If a student leaves between 15 days and 40 days after the start of the course, a 50% refund will be granted.  No refunds after 41 days after the start of the course. Students leaving the course must contact the instructor by email.  Students dropping an instructor-led course with no refund may retake the same or a different instructor-led course if offered in the future for only the cost of the $50 registration fee.

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