Tomball · The Woodlands · NW Houston · Online

Biology that finally makes sense, taught by a geneticist.

One-on-one and small-group tutoring in AP Biology, college genetics, biochemistry, and MCAT science, from a Texas A&M PhD who has taught at the college level and loves explaining how life works.

What I tutor

I focus on the courses where students most often get stuck, where understanding the "why" matters more than memorizing.

High school

AP & Dual-Credit Biology

Build real understanding instead of cramming, and walk into the AP exam ready.

  • AP Biology content and free-response strategy
  • Dual-credit biology and chemistry
  • Honors biology and pre-AP courses
College

Genetics, Biochemistry & Molecular Bio

Help with the courses that weed students out, at Lone Star, Sam Houston, A&M, UH, and beyond.

  • Genetics: Mendelian, molecular, population
  • Biochemistry and metabolism
  • Cell & molecular biology, intro biology I & II
Pre-med

MCAT Biology & Biochemistry

Targeted prep for the Bio/Biochem section: content review, passage strategy, and practice analysis.

  • Diagnostic review and study plan
  • Passage-based reasoning practice
  • Experimental design and data interpretation
Ambitious students

Research & Science-Fair Mentoring

Guidance from someone who has run real research, from first question to finished project.

  • Choosing a feasible, original question
  • Experimental design and statistics
  • Writing, posters, and presenting to judges

About me

"I grew up in an academic family and always wanted to teach. Watching a hard idea click for someone is the best part of the job."

I'm Paul Ragsdale. I earned my PhD in Genetics at Texas A&M, where my research focused on the inheritance of fiber traits in cotton, and degrees in Biochemistry and Crop Science from LSU, graduating summa cum laude.

I've taught undergraduate labs at Texas A&M and freshman horticulture at Blinn College. I've also spent years building and running businesses, so I know how to make complicated things practical and organized.

My approach is simple. I find the exact place where understanding breaks down, rebuild it from first principles, and give students a method they can use on their own. Students leave able to reason through problems they've never seen before.

How it works

In person in the Tomball / NW Houston area, or online anywhere.

Free consultation

A 15-minute call to talk through the course, current grades, and goals.

Diagnostic session

We pinpoint the gaps and build a plan around your syllabus, exam dates, or test date.

Steady progress

Regular sessions with practice between them. Parents get brief progress updates.

Questions

Do you tutor in person or online?

Both. In-person sessions are available in Tomball, The Woodlands, and northwest Houston, at your home or a library. Online sessions use video and a shared whiteboard.

What are your rates?

Rates depend on the level (high school, college, or MCAT). Session packages are available at a discount. I'm happy to go over options during your free consultation.

Do you offer small-group classes?

Yes. I run small-group biology and chemistry sessions for study groups and homeschool families, which costs less per student than one-on-one.

How soon should we start?

As early as possible. Starting at the beginning of a semester, or 3–4 months before the AP exam or MCAT, gives the best results. I'm still glad to help with a last-minute push.

Book a free 15-minute call

Tell me a little about the student and the course, and I'll get back to you within one business day.

Phone / text: (832) 308-0427

Or use the form and I'll reply by email.