Mr. Alex O'Brien

Phone: 469 - 219 - 2180 x80443


Degrees and Certifications:

B.S. in business Administration with a concentration in Marketing with a major in mathematics from Trinity University

Mr. Alex O'Brien

Hello and welcome to the 2018-2019 school year!  This is my second year at Prosper High School and my 14th year in education.  My wife and I moved to Prosper in 2015 and we have two sons (1 and 4 years old) and a dog.  I love the Prosper community and am looking forward to a great school year!


This year I will be teaching:

1st:  Pre-AP Pre-Calculus

2nd:  BC Calculus

3rd:  Pre-AP Pre-Calculus

6th:  Accelerated Pre-Calculus

7th:  Accelerated Pre-Calculus

8th:  Pre-AP Pre-Calculus

 My conference periods are 4th and 5th period.


Tutorials:  Tuesday and Wednesday 7:45 - 8:15am

               Monday 3:53 - 4:25pm (During drivers ed courses I will be in 1138 after school)

               Eagle Time every day (math priority: Tuesday)

               Other times by request

Classroom materials and assignment can be found on my google classroom site.

If you have any questions about me or my class please feel free to email me at any time (


Meet the teacher night (8/27/18) presentation: Click here