Current Coupon Codes



Instructor Email



Deposit Due at Time of Registration:
$225.00 - includes Big Ideas Math user license - see below

This course is designed to analyze and apply geometric concepts and measurements. The critical area focuses on properties of geometric figures and applying them in real-world situations. Students will engage in methods of using proofs to explain their answers. For some students, this will be a new way of doing mathematics. Developing thinking and reasoning abilities used for proof-based mathematics is significant because students will be expected to do this type of mathematical thinking in Algebra 2 and beyond.

All Excelsior math instructors will be utilizing Big Ideas Math curriculum written by Ron Larson, Ph.D. and Laurie Boswell, Ed.D. This material will prepare students for upper level and college math classes. Students will have access to a digital platform that has many tools to facilitate learning. The digital user license is included in your course deposit. The material Excelsior Classes math classes will use is not common core aligned.

Parents and students can expect weekly homework assignments, chapter quizzes, tests, a midterm and final exam.

Please see this video for more about Excelsior Classes math courses and why you should choose us for your math education.

This class meets twice per week. Each meeting is 60 minutes. Regular, live attendance is strongly advised. Recordings are available if a class is missed or there is a conflict with another course. Students should watch the recording as soon as possible.


Before registering, math students new to Excelsior Classes math courses and wanting to enroll in Fundamentals of Pre-Algebra through Pre-Calculus must take a placement exam.


These students should take the Geometry readiness assessment.  While this course is typically done in the 9th grade (mature) or above, ability to do the work is more important than age or grade. The goal of this assessment is to ensure students are well placed in geometry. Please email the completed assessment and all scratch work to for grading. Mrs. Baum will be in contact to make the appropriate recommendations for your student. These are the directions for completing the readiness assessment. Please know our goal is to set up your student for math success.

Special Note 1: If you register for the course prior to receiving teacher feedback and decide to withdraw from the course, the deposit remains non-refundable. The deposit is transferable to another math course or another course for the current school year. 


Special Note 2: As in all Excelsior Classes courses, math class instruction is tied to the curated syllabus, and the teacher will teach to the syllabus and not to a particular skill set of a student. In other words, the teacher cannot sacrifice content and expectations overall for an individual student as we need to stay in alignment with educational goals, class participant expectations, and NCAA approval of our courses.

Course Details

Live Meetings

Course Min/Max

Homework Load

Date & Time

Suggest Credit
Age Range

Class Duration


Included in registration is the ebook for the text below. Excelsior Classes distributes the licenses for digital access.

Geometry – Larson & Boswell – Samples may be viewed here.

A physical textbook is available but not required. It may be acquired on the second hand market. Please contact your teacher for more specifics on ISBN number.

A TI-84 graphing calculator is recommended

Bethany Baum loves teaching mathematics and helping students learn how to tackle challenging problems. She graduated from the University of Iowa in 2016 with a Bachelor of Arts in Mathematics and minored in Spanish. She taught middle and high school math in a public school for seven years and loved every second of it. She has taught a myriad of classes including Pre-Algebra, Algebra I, Geometry, Algebra II, Pre-Calculus, and AP Calculus AB. 

Bethany grew up in Nebraska and now resides in Iowa with her husband and daughter. She loves playing all kinds of games with family and friends. Some of her favorite games include word games, charades, and cooperative board games. Additionally, she is an avid baker who loves to share her homemade treats with others and try new recipes (especially if they involve chocolate). In her free time, she enjoys reading, completing crosswords and going to the movies.

Bethany is excited to continue teaching mathematics through Excelsior Classes. She was homeschooled through middle school and appreciates the positive impact that this form of education can have for students. She is excited to support families as they homeschool their own children.

Check our calendar for start dates

1 review for Geometry (4/5 stars)

  1. Donna E.

    The class followed a great curriculum and Ms. Baum did a great job of teaching each step. She gives ample opportunity for extra help and clarity IF the student take the initiative to jump on board! She is thorough in her explanations as well.

Add a review

Your email address will not be published. Required fields are marked *

Verified purchasers and students in the class are allowed to fill out a review. While not all comments are published, all comments are sent to administration and to the teacher.

Stay up to date

Join our newsletter