Prior subscribers have the option to use the old platform here at courses.chadsprep.com. But we recommend new subscribers go to school.chadsprep.com as updates and new content will only be added on the new platform going forward.
NEW PLATFORM IN 2025
We launched a new course platform on January 1st, 2025!
I spent more than 15 years managing the tutoring facility for the Chemistry department at one of the largest universities in the country. And I have been helping high school, college, and pre-health students excel in their science courses and on their entrance exams for over a decade online. Chemistry and Physics are not as difficult as you think...I promise! Try one of my courses today! Happy Studying!
Chad McAllister
[email protected]
What Students are Saying
Emerald Salazar
5 star rating“Okay so obviously this isn't the best case scenario but I crammed a semesters worth of chemistry in 2 weeks and my final grade was raised a letter grade higher! Chad is really great at explaining things! I will be continuing to use his courses for...”
→Read More“Okay so obviously this isn't the best case scenario but I crammed a semesters worth of chemistry in 2 weeks and my final grade was raised a letter grade higher! Chad is really great at explaining things! I will be continuing to use his courses for help with the rest of my chemistry classes!”
→Read LessVartan Melkumov
5 star rating“There is little to go wrong with chad. Best $$$ spent. Would do it again if i had to. Chad was a better professor than my actual org professor. Due to Chad, i destroyed my ORG tests. Chad sometimes talks slow, thankfully there is also a 2x speed b...”
→Read More“There is little to go wrong with chad. Best $$$ spent. Would do it again if i had to. Chad was a better professor than my actual org professor. Due to Chad, i destroyed my ORG tests. Chad sometimes talks slow, thankfully there is also a 2x speed button on all the videos. Just a tip.”
→Read LessStefan Kovac
5 star rating“Had 0 knowledge of physics coming in, now I feel so much more comfortable with ALL of physics 1/2...Chad's a legend”
“Had 0 knowledge of physics coming in, now I feel so much more comfortable with ALL of physics 1/2...Chad's a legend”
→Read LessChristine Sulzer
5 star rating“Chad's videos have helped me grasp some challenging chemistry topics in words that I can understand and with relatable analogies. I'm so thankful that a fellow classmate told me about Chad. ”
“Chad's videos have helped me grasp some challenging chemistry topics in words that I can understand and with relatable analogies. I'm so thankful that a fellow classmate told me about Chad. ”
→Read LessKissa Batul
5 star rating“This was the best review ever! It was simple to follow and the questions at the end of the chapters are very helpful. Also loved the solution videos! ”
“This was the best review ever! It was simple to follow and the questions at the end of the chapters are very helpful. Also loved the solution videos! ”
→Read LessAmy Chen
5 star rating“This general chemistry review was the first purchase I had ever made to prepare/review for a course, and I NEVER leave reviews on anything, but I just have to say that this is the best course prep out there! I watch Chad's videos because not only ...”
→Read More“This general chemistry review was the first purchase I had ever made to prepare/review for a course, and I NEVER leave reviews on anything, but I just have to say that this is the best course prep out there! I watch Chad's videos because not only are his analogies hilarious and effective, he gives off the most positive energy and I feel inspired to learn chemistry because of him. Thank you for being such a phenomenal instructor, Chad! ”
→Read LessRaafia Mulla
5 star rating“I think i learned more from Chad than i did from my orgo and physics professors combined. Chad, you are a boss! ”
“I think i learned more from Chad than i did from my orgo and physics professors combined. Chad, you are a boss! ”
→Read LessJemi Patel
5 star rating“The simple straightforward outlines really help focus on whats most important. Also, the quizzes are very helpful when determining what you do or don't yet understand.”
“The simple straightforward outlines really help focus on whats most important. Also, the quizzes are very helpful when determining what you do or don't yet understand.”
→Read LessNikki Zemel
5 star rating“Chad explains concepts clearly and helps students comprehend difficult problems. Way to go Chad! I am officially a chadmeister!!!!”
“Chad explains concepts clearly and helps students comprehend difficult problems. Way to go Chad! I am officially a chadmeister!!!!”
→Read LessMegan Phipps
5 star rating“These lectures help me understand my textbook and professor better. Chad covers every type of problem you could encounter on an exam and makes sure to use the same wording that a professor or textbook would use. This last point about wording is ex...”
→Read More“These lectures help me understand my textbook and professor better. Chad covers every type of problem you could encounter on an exam and makes sure to use the same wording that a professor or textbook would use. This last point about wording is extremely important because certain phrases indicate how you should approach a problem. If you don't know what certain phases mean, then it becomes increasingly difficult to know which equation to use and what exactly you are solving for. So my favorite thing about these lectures is how they address this issue. Additionally, Chad provides a lot of shortcut equations that are really helpful and necessary to know if you want to finish your exam on time. ”
→Read LessChyna Chung
5 star rating“Learned so much material from this course. Explanations are right to the point and the quizzes really bring things together. Simple and sweet, yet beautifully detailed. Thanks Chad!!”
“Learned so much material from this course. Explanations are right to the point and the quizzes really bring things together. Simple and sweet, yet beautifully detailed. Thanks Chad!!”
→Read LessMEGI PASHO
5 star rating“So I cant find the words to describe how helpful this course has been. I mean for every science class that I've taken I have seen Chads Videos to help me understand. Thank you for everything you do, your time and your amazing way of explaining thi...”
→Read More“So I cant find the words to describe how helpful this course has been. I mean for every science class that I've taken I have seen Chads Videos to help me understand. Thank you for everything you do, your time and your amazing way of explaining things in such a easy way. Thank you!!!”
→Read Less