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Award-Winning 9th Grade Chemistry Tutors
Certified Tutor
5+ years
Karista
I am now an independent contractor and science writer. Some of my work is on my website, www.karistahudelson.com. I am passionate about education and truly enjoy helping students with science and math courses. I have tutored for undergraduate level chemistry, algebra, and biology courses and taught ...
University of North Texas
Master of Science, Environmental Science
Oklahoma State University-Main Campus
Bachelor of Science, Biochemistry
University of Windsor
Doctor of Philosophy, Environmental Science
Certified Tutor
I am a licensed physician from Florida who is currently changing careers. I graduated from the University of Pennsylvania in 2009 and have extensive tutoring and editing experience. While a student, I became a certified writing tutor through the Critical Writing Department. Since I completed my writ...
Nova Southeastern University
PHD, Medicine
University of Pennsylvania
Bachelors, History
University of Pennsylvania
undergraduate
Certified Tutor
Kate
I'm available to tutor biology, chemistry, physics, math from Algebra up through AP Calculus, SAT test prep, and French. I've been tutoring students in science and math for 7 years. I also spent 8 months working and studying in France, and have tutored high school and adult students in French. When ...
Massachusetts Institute of Technology
Masters, Environmental Engineering
Massachusetts Institute of Technology
Bachelors
Certified Tutor
9+ years
Jai
I'm a recent Stanford graduate (Electrical Engineering and Computer Science), and have been working at a major Management Consulting firm for a few years now. I personally scored a 2360 (out of 2400) on the SAT and 35 on the ACT and was successful in gaining admission to several top universities. I'...
Stanford University
Bachelors in Electrical Engineering and Computer Science
Certified Tutor
Erika
I am available to tutor middle and high school math, history and test prep. I have tutored math and history in the past and I previously taught a test prep course at a school in Hanoi, Vietnam. I have a lot of experience teaching all the need-to-know tricks to doing great on the SATS/ACTS! When I am...
Harvard University
Master of Public Policy, Public Policy
Certified Tutor
6+ years
Rhea
I am a current student at the University of Chicago. I am working towards a Bachelor of Science in Biological Sciences, and I am on the pre-medical track. I am extremely passionate about tutoring, and I have several years of experience tutoring students in my high school's learning center in various...
University of Chicago
Bachelor of Science, Biology, General
Certified Tutor
6+ years
Jeffrey
I am enrolled in the Mechanical Engineering PhD program at Rice University which will begin Fall 2020, and I am hoping to return to academia as a professor after earning my PhD. In the meantime, I am looking to share my passion for gaining knowledge, specifically in STEM, by educating the up and com...
University of Notre Dame
Bachelor of Science
Rice University
Doctor of Philosophy, Mechanical Engineering
Certified Tutor
5+ years
Tiffany
I am available to tutor a broad range of subjects, I am passionate about test preparation, Accountancy, and Algebra.
University of Notre Dame
Bachelor in Business Administration, Accounting
University of Chicago
Juris Doctor, Legal Studies
Certified Tutor
Tony
I am a recent graduate of Yale University and incoming first year medical student at Columbia University. Originally from the DC area, I have always had a passion for science and medicine and pursued a degree in Biology while at Yale. During the 2008-2009 academic year, I tutored science, math, Engl...
Yale University
Bachelor of Science in Biology
Certified Tutor
Charles
I am a junior Mechanical Engineering major at Yale, and I hope to become a Naval Aviator after college. I am also a varsity sailor, and enjoy playing music with friends when I can get some free time. I have been tutoring my fellow students throughout my entire academic career, and I would best descr...
Yale University
Bachelor of Science, Mechanical Engineering
Top 20 Science Subjects
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Earnest
Pre-Algebra Tutor • +26 Subjects
I am comfortable with either setting. I'm confident that I can help you (or your student) achieve to the best of their ability, so please don't hesitate to get in touch!
Matthew
Pre-Algebra Tutor • +39 Subjects
I'm a highly creative person who works best with visual thinkers. Very recently graduated from Stanford University, I majored in Human Biology with a concentration in Bioinformatics and Stem Cell Science. Technical though my background may be, I am currently gigging as a singer/songwriter/composer in NYC and tackle even the most hard-science of problems with a top-down, big-picture, holistic approach. If you have a propensity to look at problems in a cross- or inter-disciplinary manner (or want to learn how to do so), I'm the tutor for you!
Pinelopi
Pre-Algebra Tutor • +25 Subjects
I am a Duke University graduate with a Bachelors degree in Psychology. I have experience tutoring all levels of Spanish language, all sections of the SAT, as well as algebra, pre algebra, geometry, and pre-calculus! I love kids & I have a very flexible schedule and a lot of patience! Let me help you :)
Sharon
Pre-Algebra Tutor • +29 Subjects
I am a graduate of the University of Chicago, and I will be starting a graduate program at Columbia in August. I am about to complete a year of service with City Year, an education non-profit that places young adults into under-served schools. As a City Year member, I worked full-time in the classroom with middle-school students who were in approximately the 10th percentile for math (meaning they score lower than 90% of students). One-fourth of those students were able to grow around 15 percentile points by the end of the year! Hobbies: reading, cooking, gardening, music, art, nature, books, writing
Samuel
AP Calculus AB Tutor • +29 Subjects
I am a freshman at Caltech majoring in Applied and Computational Mathematics. My favorite subject to tutor is math because I find it very rewarding to simplify complex topics to aid in understanding. I have lots of tutoring experience. In high school, I ran and taught an SAT prep class and was vice president of my school's NHS chapter where I ran our tutoring program, and I, myself, tutored. I also was a teaching assistant in the summer of 2020 for a class in discrete mathematics through a program called PACT (Program in Algorithmic and Combinatorial Thinking). I love learning and hope to make the process enjoyable for you!
Sami
Pre-Algebra Tutor • +19 Subjects
I am a Duke University graduate in Economics and Computer Science. I am currently pursuing an MBA degree at the Yale School of Management. I have worked in the financial field, both at a management consulting firm and a fortune 500 company. My hobbies include playing and coaching soccer. Hobbies: reading, writing, art, books, music
MaryAnn
Calculus Tutor • +21 Subjects
I am a published author who has enjoyed “coaching” our daughter, as she navigated through high school, college and graduate school. I mentor college juniors who are seeking careers in financial services, and I serve as a peer resource to professionals who are transitioning from private industry to the nonprofit sector. Hobbies: reading, cooking, writing, books, music, art, travel
Quinn
Calculus Tutor • +17 Subjects
I am willing to address any issue with an open mind and I try to develop strategies that play to a student's strengths. I would like to think I am very approachable and personable, and I have had very positive experiences with many students in the past using this philosophy. Outside of academics, I love playing basketball and watching sports, as well as chilling with friends, listening to music, and keeping up with politics and current affairs.
Annie
Pre-Algebra Tutor • +28 Subjects
I am currently a second year medical student. I was a Physiological Sciences major at UCLA (class of 2015), and pursued research during my gap year between undergrad and medical school.
Samantha
Pre-Algebra Tutor • +38 Subjects
I'm a first-year medical student and recent graduate from Duke University, where I studied Global Health Determinants, Behaviors, and Interventions. From running a piano program at a nonprofit children's theatre to private tutoring in math, science, and standardized test prep, I enjoy helping my students become confident and self-sufficient learners! Hobbies: photography, travel, reading, music, writing, running, art, books, traveling
Top 20 Subjects
Frequently Asked Questions
The biggest challenge areas are balancing chemical equations, understanding mole concepts, and grasping the relationship between macroscopic observations and atomic-level explanations. Many students also struggle with stoichiometry—converting between grams, moles, and particles—because it requires fluency with multiple conversion steps. Additionally, visualizing molecular structures and understanding why chemical reactions happen at the particle level (rather than just memorizing that they do) trips up many freshmen. A tutor can break these down systematically and use models or drawings to make the invisible visible.
Lab work is essential—it's where students apply the scientific method, make observations, and connect theory to reality. However, many students struggle to interpret lab results, write proper conclusions, or understand why their experiment didn't match predictions. A tutor can help you design experiments thoughtfully, troubleshoot when results seem off, practice proper lab technique and safety protocols, and develop the reasoning skills to explain what you observed. This bridges the gap between "following steps" and truly understanding the chemistry happening in front of you.
Balancing equations requires understanding that atoms can't be created or destroyed (conservation of mass) while also tracking multiple elements simultaneously—it's a puzzle that demands both conceptual understanding and procedural fluency. Students often guess-and-check randomly instead of using a systematic method. A tutor teaches the step-by-step algorithm: start with the most complex compound, balance one element at a time, and use fractions if needed before converting to whole numbers. With practice and clear strategy, this becomes one of the most reliable skills students develop in 9th Grade Chemistry.
The mole is fundamentally a counting unit—like a dozen, but for particles (6.02 × 10²³ of them). The key is connecting it to what you can actually measure: mass. A tutor helps you see that molar mass (grams per mole) is the bridge between the macroscopic world you weigh on a scale and the particle world chemists work with. Once you understand that relationship, mole-to-mass conversions, limiting reactants, and percent yield problems become logical rather than mysterious. Visualizing this with concrete examples—like "one mole of carbon atoms weighs 12 grams"—makes it stick.
Since you can't see atoms or electron configurations with your eyes, tutors use multiple strategies: molecular models you can build and manipulate, drawings and diagrams that show electron movement during bonding, animations or simulations that show reactions in motion, and analogies that connect to familiar systems. For example, explaining ionic bonding as "electron transfer" (like trading baseball cards) makes it more concrete than abstract orbital theory. By engaging multiple senses and building from familiar ideas, students develop mental models that make the abstract feel real and predictable.
Strong chemistry tutoring teaches you to think like a chemist: asking "why did this happen?" instead of just "what happened?", predicting outcomes before running experiments, and using evidence to support claims. This means practicing skills like analyzing experimental design, identifying variables, recognizing patterns in the periodic table, and troubleshooting when predictions don't match results. These reasoning skills transfer beyond chemistry to physics, biology, and any field requiring logical thinking. A tutor guides you to ask better questions and test your own understanding rather than passively receiving information.
Unit conversions are the foundation for stoichiometry, gas laws, and nearly every calculation in chemistry—if you can't convert between grams, moles, liters, and particles fluently, larger problems become impossible. Many students memorize conversion factors without understanding them, which leads to errors and confusion. A tutor teaches you dimensional analysis (the "factor-label" method), which is a systematic approach: write what you have, write what you want, and find conversion factors that cancel units until you reach your answer. Once you see it as a logical process rather than magic, you can handle any conversion chemistry throws at you.
If you're struggling, a tutor identifies gaps—maybe you need stronger algebra skills for stoichiometry, or you're missing foundational concepts like atomic structure—and fills those holes before moving forward. If you're doing okay but want to excel, tutoring focuses on deeper understanding, challenging problem-solving, and lab skills that go beyond what's covered in class. Either way, personalized instruction means the tutor adjusts pace and focus to where you actually are, rather than following a one-size-fits-all curriculum. This targeted approach saves time and builds genuine confidence in the subject.
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