Pythagorean Theorem




Deciding what math class to take can be a very confusing business!  Mendocino College math instructors are happy to discuss your individual situation with you and help you decide, so don't hesitate to ask.

Your transcripts along with your placement test results will help you to decide which class is best for you.  A general rule is to take the highest level of class for which you qualify. This graphic outlines your options:

high school to college courses

How many and which math courses you take depend on your educational and career goal.

If your goal is to get a two-year degree (Associate of Arts or Associate of Sciences), you must take MTH 56 or any higher-numbered math course.

If your goal is to transfer to a four-year college, and you plan to major in subject which is not physical or biological science, computer science, math or business, your best option is to take Statistics (MTH 220).  As the flow chart indicates, this can be reached either from Intermediate Algebra (MTH 56) or Algebra and Logic for Statistics (MTH 51).

MTH 51 is an alternate path for MTH 45, 55, and 56.  Successful completion of MTH 51 will allow the student to register for MTH 220.  MTH 51 is not meant for students planning to major in science, math, computer science or business.  Successful completion will not allow students to register for MTH 120 (Math for Educators), MTH 121 (Trigonometry) or MTH 230 (Business Calculus).

Flow Chart

If you do plan to major in science, math, computer science or business, you will have to take courses beyond MTH 56, and you need to find out the specific requirements for your major.  Talk to a math instructor or a counselor, or do some online research.


In addition to these full-time math instructors, we have several excellent adjunct (part-time) instructors.

Roger Ahders

Roger Ahders

Office: 9182
Office hours:  
MW 1:00 pm - 2:00 pm;  TTh 1:30 pm - 2:30 pm;  F 11:00 am - 12 noon

Phone: 707-468-3136

Roger grew up in Cloverdale and attended Santa Rosa Junior College, graduating with an AA from SRJC. He went on to earn his BS in Mathematics from Sonoma State University and his MS in Mathematics from Oregon State University. Roger joined the faculty at Mendocino College in 1998. 

Roger says that the best part of his job is that wonderful moment when a student who previously had trouble with math, suddenly “Gets It!” He likes teaching his students “the strategies of the game” so they can successfully solve problems on their own.

When he is not working, Roger enjoys hanging out with family, hiking, fishing, and other “outdoor stuff.” He is married and has two children.


Deborah White

Deborah White

Office: 9181
Office hours:  TTh 11:30 a.m. to 12:20 p.m. in the Learning Center
                       W 12:00 p.m. to 12:50 p.m. in the Learning Center
                        F 10:00 a.m. to 12:00 p.m. in Rm. 9181

Phone: 707-468-3129  Cell Phone: 707-272-1671

Deborah grew up in the suburbs of Chicago and got her BA in Mathematics from Swarthmore College in 1967 and her MS in Statistics from Stanford University in 1968. She has worked as a journalist, a textbook editor, and a statistical consultant to logging companies, in addition to teaching. She taught in a junior high (what middle schools were called back in the day) in Los Angeles for a year, in a high school in the Bay Area for a year and ran a private school in Mendocino for two years. She taught math at College of the Redwoods, Mendocino Coast, from 1977 to 2000, before moving to Ukiah and teaching at Mendocino College, beginning in 2000.

Deborah’s specialty is Statistics, for which she’s written her own text, available online free to students. She was active in the formation and the running of the full-time faculty union at Mendocino College. She loves to teach and get to know the students and intends to keep working until “either I die or I’m no longer able physically or mentally to do the work.”  She is currently working on reforming the math curriculum to make it less of a torture for those students who have suffered math abuse in the past.

She has two grown children and two grandchildren. Her hobbies are gardening, reading novels, and watching sports, both professional, Mendocino College, and her grandchildren’s teams. She is an ardent fan of the San Francisco Giants.

Jason Edington

Jason Edington

Office: 9178
Office hours:  

M/W: 12:00 - 1:30

T/Th: 11:30 - 12:30

Phone: 707-467-1004

Jason Edington is originally from Southern California where he worked as a pizza restaurant manager, a mechanic, a vacuum salesperson, and several other odd jobs during his non-traditional path to becoming an educator. After starting a family, he earned his High School Diploma at the age of 23. From there he attended Saddleback Community College where he found a much different experience than high school and a love for education! He earned his AA in Mathematics and went on to earn his BA and MA in Mathematics from CSU Fullerton.

Jason came to Mendocino College in 2004. Since then, he has become very involved in the college and statewide academic matters. In the math department, Jason has designed or co-designed all of the online courses, and continues to work towards expanding the offering of these courses. His educational focus is on learning how to study, with an emphasis on how to read and study a math book.

Jason has served a Co-Advisor for Phi Theta Kappa, the International Community College Honor Society, since his second semester at Mendocino. He is also very active on campus committees, including having served several years on Academic Senate. Jason was a member of Cohort 3 of Project ACCCESS (American Mathematical Association of Two Year Colleges) and has served as a Network Committee member.

Jason is married and has two children, both of which have attended Mendocino College. In his spare time, he enjoys acting and directing local theatre, and spending time with his wife and children. His mathematical interests lie in Algebra and Number Theory.​

Leslie Banta

Leslie Banta

Office:  9174

Office hours: 

M/W 4:00 pm – 4:30 pm Willits Center

and  T/TH 9:00 am – 11:00 am in 9174

Feel free to stop by anytime my door is open!

Phone: 707-467-1053


Leslie was raised in Ukiah and attended Mendocino College, graduating with an AA in Liberal Arts with highest honors. She went on to earn her BA in Mathematics from Sonoma State University, graduating with honors and distinction and her Master of Science Degree from Dominican University of California.  Leslie joined the faculty of Mendocino College in 2010.   Prior to teaching at Mendocino College, she taught high school math at both a small college prep high school and at a larger comprehensive high school. 

Leslie is interested in continuing professional development and is  the campus rep for both the California Mathematics Council for Community Colleges (CMC3) where she manages their Facebook page, and the American Mathematical Association of Two Year College (AMATYC) where she is a Project ACCCESS Fellow (Cohort 9).  Her professional interests include math history, writing in math class, student equity, mentoring and professional development.

Leslie is married and has two adult children (both of whom attended Mendocino College). She also has several grand-dogs as well as a Boxer she calls her own. Her personal interests include spending time with her family (including her dog), reading, scrapbooking, and watching sports. She thinks there are few things better than an afternoon or evening spent at the ballpark.


.Casey Bylund

Casey Bylund

Office: 9180
Office hours:
MW: 2:00pm-4:00pm,  T: 10:00am - 12:00pm
TH: 12:30pm - 1:30pm,  F: 11:00am - 12:00pm

Phone: 707-468-3228

Casey grew up in Santa Rosa and went to the University of San Francisco for her BS. She then went to Washington State University where she earned her MS in applied mathematics. As a graduate student, her research focus was on Couette flow simulations in molecular dynamics.  She is a new addition to the faculty as of 2015. She especially looks forward to helping students who have "math-phobia" feel comfortable and successful in math class.

Casey is getting married in the spring.  In her downtime, her favorite thing to do is play with her yellow lab mix, Nala.




The math department runs a weekly contest open to all students.  To see all the contests from this semester so far, and their solutions, go to


Mathematics Associate in Science for Transfer

Mathematics is the language of science and is used to describe the real world as well as abstract concepts. It is the basis for all modern technological advances. The Associate in Science in Mathematics for Transfer is designed to prepare students for a seamless transfer into the CSU system to complete a baccalaureate degree in Mathematics or similar major. Priority admission with junior status to the CSU system will be granted. Students completing this degree are exempt from Mendocino College Institutional

Required Core Courses
MTH 210         Calculus and Analytic Geometry I      5 units
MTH 211         Calculus and Analytic Geometry II     5 units
MTH 212         Calculus and Analytic Geometry III    5 units

Choose a minimum of 7 units from below with at least 3 units from Group A.
Group A
MTH 214         Linear Algebra                         4 units
MTH 215         Differential Equations             3 units

Choose remaining units (if needed) from Group B.
Group B
MTH 220         Statistics                                                          4 units
PHY 220         Physics for Scientists and Engineers I           4 units

Total Units
22 - 23

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