About Me

Hi there! and welcome to my webpage. I have been a full-time math instructor at DAC for 20+ years. I have been the Advisor to the Alpha Sigma Alpha Chapter of Phi Theta Kappa - the International Community College Honor (and Service) Society; the new chapter advisor is Mehrdad Khosravi.  I also served as the NV/CA Regional Coordinator.

NOTE: I am retired and no longer teaching at De Anza College

For all classes:
* * Please be certain to read the General Information as well as the course syllabus
* * Make certain you bring your text and other needed materials to all classes, even the first day's class.
** Your first in-class minitest or exam will contain extra-credit questions related to information from the Home Page, Course Syllabus, General Information page, etc.

SPECIAL NOTE FOR SUMMER SESSION: The workload is more than doubled each class day; thus anticipate that we cover TWO (sometimes THREE) sections per day, and therefore anticipate spending 5 to 6 or more hours per day, and also at least half that time per day on each non-class day. (Yes, even the Fri-Sat-Sun weekend is valuable class study time; forget the beach!) Further, I strongly recommend that you take no other class; one math class during the summer session is plenty!
Time on Task is an essential ingredient to student success. Do make sure you can dedicate an appropriate amount of time each day, including weekends, for study, homework, and review for this course.
Do you have some trepidations about math? Unsure of what you can learn from math? Math for its own sake?! Take a few minutes to read How to Fall in Love with Math
Several Important Notes:
* For summer session:
As each summer class is actually 2 1/2 days of 'regular' class, your first minitest will be in just a few days.

* It is best to use blank (unlined, computer printout) paper for doing math, rather than loose-leaf paper, especially for any assignments to be turned in. The thin blue lines of loose-leaf paper are confining when one has to write algebraic expressions that require lots of (vertical) space, such as algebraic fractions with exponents, etc. Writing on graph paper is visually even worse, unless you are actually making a graph. Turning in assignments on paper torn out of a spiral binder is especially inappropriate, and not accepted.
* It is your responsibility to read all these documents ( home page / course description page / Gen. Info / Class Syllabus ) carefully, so that you fully understand how the course will be run, and certain expectations of you. If you are unclear about anything, please do not hesitate to ask me.
Disregard the following: * * Your first in-class mini-test or exam will include information from the home page / course description page / General Information page / Class Syllabus, as well as the appropriate math content.
From the links in the left column:
you will be able to access information and download the syllabus for your course.
For the Algebra, PreCalc, and Calc classes: there are on-line tutorials (videos) that demonstrate how to solve various types of problems you will encounter. They are helpful to you in your homework and study preparations, but only if you make use of them. Become familiar now with how to access them.
For Statistics classes: A lot of useful statistical information [which I don't have on my website, such as videos] can be accessed from the webpages of Barbara Illowsky, Susan Dean, & Roberta Bloom (to name a few). click on Math 10 Elementary Statistics
You will also be able to access information about Phi Theta Kappa Honor Society (not to be confused with either the DAC Honors Program or the Honors Club)

Classes I Teach

No Classes this quarter.

Faculty Info

De Anza icon - stylized arches

Charles Klein



Office Hours

Spring 2018


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