Giving Back with Growth Mindset Collaborative

80% of your purchase supports PreK-Young Adults in areas such as literacy, STEM, project-based learning, and other growth-focused initiatives.

If you make a purchase via a link from your organization, 50% of your purchase returns to your youth-focused nonprofit.

Real Student Comments about Dr. Test Prep

(For privacy, just the first three letters of the YouTube handle are listed.)

  • girl this is the most helpful sat video ive seen. usually they give me the actual way to do it, even if it can be plugged into desmos, which is great for understanding the actual concept, but i honestly dont really care to do that. I just need the simplest and fastest way to do it so i can save the time for questions that actually need more thinking. And i lovee taking advantage of desmos. @Lig...

  • I’m so happy I found your account I’m African I study in French as I’m good in math but I’m new the sat methods of questions and the language is also a thing your unit are def helping a lot thanks infinity ❤️❤️❤️❤️❤️@Apr...

  • You have literally saved my life. I've been trying so hard to understand the Geometry & Trig part of the SAT and could not figure out a practical way even if my life depended on it. Very underrated videos and you definitely deserve more views and likes!! Thanks so much! 😅 @Rim...

Dr. Michelle Ihrig

Creator: Dr. Test Prep
Executive Director: Growth Mindset Collaborative

Dr. Michelle Ihrig — also known as Dr. Test Prep and Doc Chelle — has been helping students boost their SAT scores since 2003. Over the years, she’s supported thousands of learners through her free SAT lessons on YouTube and in-school sessions across the country. With more than 25 years of classroom experience, Dr. Ihrig believes deeply in the power of genuine connection and love to help students believe in themselves — and succeed.

YouTube Channel: youtube.com/@drtestprep
Growth Mindset Collaborative: GrowthMindsetCollaborative.org
Doc's Website: TempleEdgeLearning.com
Learn Today: $99