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Congratulations to Avi Agh, the winner of our 2026 Labor Day Giveaway! Avi selected the 2026 DAT Destroyer, our complete DAT science preparation book covering Biology, General Chemistry, and Organic Chemistry. Thank you to everyone who participated. Dr. Romano and I truly appreciate your...

Congratulations to Avi Agh, the winner of our 2026 Labor Day Giveaway! Avi selected the 2026 DAT Destroyer, our complete DAT science preparation book covering Biology, General Chemistry, and Organic Chemistry. Thank you to everyone who participated. Dr. Romano and I truly appreciate your...

Registration is now open for our Spring 2027 In-Person DAT and OAT Prep Class in Staten Island, NY. Dr. Jim Romano teaches 100% of every in-person class and has more than 35 years of experience preparing students for the DAT and OAT. Start Date: Sunday, January 17, 2027 End Date: Tuesday...

Registration is now open for our Spring 2027 In-Person DAT and OAT Prep Class in Staten Island, NY. Dr. Jim Romano teaches 100% of every in-person class and has more than 35 years of experience preparing students for the DAT and OAT. Start Date: Sunday, January 17, 2027 End Date: Tuesday...

Can you identify the biology term that describes differences in appearance or behavior between males and females of the same species? Choose your answer before checking the solution on the second slide. Free DAT and OAT preparation resources from Dr. Jim Romano: Start Your DAT and OAT...

Can you identify the biology term that describes differences in appearance or behavior between males and females of the same species? Choose your answer before checking the solution on the second slide. Free DAT and OAT preparation resources from Dr. Jim Romano: Start Your DAT and OAT...

For a limited time, save 15% on all individual DAT and OAT study books from Dr. Jim Romano and the Destroyer team. Use code AUGUST15 at checkout on orgoman.com. Sale ends August 23. Individual books only. Bundles are excluded from this promotion because bundles are automatically discounted...

We’re celebrating with a 2026 OAT Destroyer Book Giveaway! If you know a pre-optometry student preparing for the OAT, please feel free to share this with them. One student will win a brand-new 2026 OAT Destroyer by Dr. Jim Romano, with shipping included to a U.S. or Canadian address. No...

Congratulations to our DAT Destroyer student on an outstanding DAT score! 530 Academic Average 540 Survey of Natural Sciences 600 General Chemistry “I couldn’t have done it without your class and the DAT Destroyer. You changed my life, and I am forever grateful. Thank you, Dr. Romano, and...

Congratulations to one of our Summer 2026 DAT students on an outstanding DAT performance! 🎉 Academic Average: 520 DAT Scores: General Chemistry: 550 Quantitative Reasoning: 530 Reading Comprehension: 530 Survey of Natural Sciences: 510 Organic Chemistry: 490 Biology: 480 Perceptual...

Post 🎉 Congratulations to our Summer 2026 DAT student on an outstanding DAT performance! We are excited to share this student's DAT success story: ⭐ Academic Average: 520 DAT Breakdown: • General Chemistry: 550 • Quantitative Reasoning: 530 • Reading Comprehension: 530 • Survey of...

📚 24-Hour DAT Destroyer Special For the next 24 hours, save 10% on DAT Destroyer 2026 with discount code: TAKE10 Watch the DAT Destroyer 2026 video: DAT Destroyer provides challenging practice problems and detailed solutions designed to help students strengthen their understanding and...

Fibroblasts are a classic DAT and OAT Biology topic that every student should master. They are the primary connective tissue cells responsible for synthesizing collagen and the extracellular matrix, making them essential for tissue repair and maintenance. In the attached slides, Dr. Jim Romano...

Fibroblasts are a classic DAT and OAT Biology topic that every student should master. They are the primary connective tissue cells responsible for synthesizing collagen and the extracellular matrix, making them essential for tissue repair and maintenance. In the attached slides, Dr. Jim Romano...

Enzymes and inhibitors are among the highest-yield Biology topics on the DAT and OAT. In this video, Dr. Jim Romano explains the key concepts you need to understand, including how different inhibitors affect enzyme activity and how these questions are commonly tested. Free DAT & OAT Study...

Enzymes and inhibitors are among the highest-yield Biology topics on the DAT and OAT. In this video, Dr. Jim Romano explains the key concepts you need to understand, including how different inhibitors affect enzyme activity and how these questions are commonly tested. Free DAT & OAT Study...

Many students lose easy points on the DAT and OAT because they misunderstand functional notation. This short lesson by Prof. Blois explains how to evaluate functions correctly and avoid common mistakes that frequently appear on the exam. Watch the video here: If you're preparing for the...

Many students lose easy points on the DAT and OAT because they misunderstand functional notation. This short lesson by Prof. Blois explains how to evaluate functions correctly and avoid common mistakes that frequently appear on the exam. Watch the video here: If you're preparing for the...

Congratulations to one of our students on earning a 500 Academic Average (AA), including an outstanding 600 in General Chemistry! — "Michael" (Name changed for privacy) Congratulations on an outstanding achievement, and thank you for allowing us to share your success. We wish you continued...

A big thank you to our incredible 2026 Summer DAT/OAT class! We're grateful to be working with such a dedicated group of future dentists and optometrists. Their hard work, perseverance, and commitment continue to inspire us, and we look forward to celebrating their future dental and optometry...

Congratulations to our incredible 2026 Summer DAT & OAT Preparation Course students! We're proud of everything this class accomplished through hard work, dedication, and perseverance. It has been an honor helping future dentists and optometrists prepare for one of the most important exams of...

Here is today's DAT/OAT Quantitative Reasoning challenge. An analog clock has 12 hour markings. Based on the time intervals shown, how many total hour markings does the minute hand pass? Consistent practice with challenging problems is one of the best ways to improve your Math score and...

Understanding graph transformations is essential for success on the DAT and OAT Quantitative Reasoning section. In this Math Destroyer problem, you'll identify the equation of an absolute value function by analyzing: Reflection across the x-axis Horizontal translation Vertical translation...

Many DAT and OAT students confuse simple interest with compound interest, especially under timed exam conditions. In this lesson, Dr. Jim Romano explains the key differences, the formulas you need to know, and how to solve these problems efficiently on test day. 📹 Video: Free DAT & OAT...

Understanding the difference between simple interest and compound interest is an important skill for the DAT and OAT Quantitative Reasoning section. In this video, Dr. Jim Romano walks through the concepts step by step and shows how to recognize and solve these problems quickly on test day...

Understanding Hückel's Rule is essential for success on the DAT and OAT Organic Chemistry sections. While many students memorize the 4n + 2 rule, the key to answering challenging exam questions is knowing when and how to apply it. In this lesson, Dr. Jim Romano explains how to distinguish...

Solution Correct Answer: F — All are true. A) Catalytic hydrogenation proceeds by syn addition, so both hydrogens are delivered from the less hindered face, giving a product in which the two methyl groups are cis. B) The hydrogenation is highly stereoselective because hydrogen approaches...

Another outstanding DAT Destroyer student has achieved exceptional results! Organic Chemistry: 600 Total Science: 560 Academic Average: 520 We're incredibly proud of this student's hard work and dedication. Congratulations on an outstanding performance, and thank you for your thoughtful...

Can you solve this DAT Organic Chemistry question before revealing the answer? This problem tests an important DAT concept: alkoxymercuration-demercuration. The trick is recognizing what happens when CH₃OH (methanol) is used instead of water. Many students automatically think "alcohol," but...

Can you solve this DAT Quantitative Reasoning question before checking the answer? This problem tests your understanding of exponents, absolute value, and logical reasoning. A useful DAT strategy is to plug in numbers that satisfy the equation. For example: 82=648^2 = 6482=64 43=644^3 =...

Understanding the cytochrome P450 (P450) enzyme system is essential for success on the DAT and OAT Biology sections. In this lesson, Dr. Jim Romano explains how the liver detoxifies drugs, toxins, and other foreign compounds through the P450 enzyme system. Instead of memorizing isolated facts...

Decarboxylation is a fundamental organic chemistry reaction that frequently appears on the DAT and OAT. Understanding when carbon dioxide (CO₂) is eliminated and recognizing the reaction conditions can help you answer exam questions with confidence. In this lesson, Dr. Jim Romano explains the...

How many times should you keep trying if you don't get the DAT score you need? This student's journey is proof that persistence pays off. After five DAT attempts, he committed to a better study strategy, worked hard with Dr. Jim Romano and the DAT Destroyer team, and eventually earned the...

Happy 4th of July to everyone in the SDN community! 🇺🇸 To celebrate, we're offering $25 off any individual Destroyer book — today only. Use code JULY4 at checkout: https://orgoman.com Applies to: DAT Destroyer OAT Destroyer Math Destroyer Gen Chem Destroyer Physics Destroyer Organic...

Many students confuse D/L notation with the direction of optical rotation. These are different concepts and should not be used interchangeably. Mastering amino acid stereochemistry is essential for success on the DAT and OAT. Understanding the underlying concepts—not just memorizing facts—will...

Congratulations to Milana Tokov, one of our Summer 2025 DAT Course students, on her acceptance to Touro College of Dental Medicine! Hard work, consistency, and perseverance made this achievement possible, and we're incredibly proud to have been part of her DAT journey. We wish Milana...

Photosynthesis is one of the highest-yield biology topics on the DAT and OAT. Can you explain the roles of the light-dependent reactions and the Calvin cycle before watching Dr. Romano's explanation? YouTube: Free DAT & OAT Resources from Dr. Jim Romano: Start Your DAT and OAT Preparation...

In this video, Dr. Jim Romano reviews high-yield organic chemistry functional groups that frequently appear on the DAT and OAT. Understanding functional groups is essential for identifying compounds, predicting reactions, and solving organic chemistry problems efficiently. Free DAT Resources...

Trying solving before going to slide 2 The roots tell us the factors. The vertex tells us the value of the leading coefficient. Free DAT Resources: Start Your DAT and OAT Preparation for Free | Official Resources from Dr. Jim Romano Join Our Free Facebook Study Group...