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David S.

David S. | Tutor in Calculus, Calculus BC, Chemistry, Physics, Spanish | 11484743

What do you want to work on?


About David S.

Subjects

Calculus, Calculus BC, Chemistry, Physics, Spanish

Education

Bachelors in Chemical Engineering from Universidad Nacional de Colombia


Reviews    (249)


Zainab

Science - Organic Chemistry

Oct 30, 2025
David was so helpful and patient!

Lizzie

Foreign Language - Spanish

Oct 30, 2025
David was excellent with helping me pronounce the syllables.

Brigitte

Science - Organic Chemistry

Oct 29, 2025
Amazing! was able to understand to alot!!

Lizzie

Foreign Language - Spanish

Oct 27, 2025
The tutor knowledge was excellence.

Jinisha

Science - Organic Chemistry

Oct 22, 2025
I was on tutoring for 1 hour a 5 min and was not able to get a clear answer for 1 question. it took time to learn a few things that were complicated on the way but i left the call with no answer for the question or steps on how to finish it on my own

Jovena

Science - Organic Chemistry

Oct 14, 2025
amazing tutor

Jovena

Science - Organic Chemistry

Oct 13, 2025
tutor was amazing and explained well

Amina

Science - Chemistry

Oct 10, 2025
Really good tutor, went step by step like I needed

Jesus

Science - Organic Chemistry

Oct 9, 2025
amazing, I felt like I gained confidence to understand the subject

Trena

Science - Chemistry

Oct 8, 2025
i really like this tutor.

Emily

Science - Chemistry

Oct 7, 2025
it went pretty good

DoreenJ

Science - Organic Chemistry

Oct 2, 2025
David is an Exceptional Tutor. Thank you David

Darius

Science - Chemistry

Oct 1, 2025
THX so much sir, 10/10 Did a very good job!!!!!!

Krystal

Science - Organic Chemistry

Sep 29, 2025
Best tutor ever!

Marissa

Science - Organic Chemistry

Sep 15, 2025
the best tutor ever

Payton

Science - Organic Chemistry

Sep 10, 2025
Mr. David was very helpful and descriptive.

Hadia

Science - Organic Chemistry

Aug 31, 2025
David S. is a really awesome tutor! Thanks for helping me understand mass spectrometry!

Danielle

Math - Calculus

Aug 31, 2025
Mr David was very patient and spent the whole hour working with me on a single problem I was struggling with. He was knowledgeable, and broke down all the concepts and made sure I understood before moving on. He guided me through until I was able to finally answer it myself. Thank you!

Vincent

Math - Calculus

Aug 29, 2025
Great service.

Jay

Science - Physics - Algebra-Based

Aug 25, 2025
very very very very very very very very good and excellent. WOW

Owen

Science - Physics - Algebra-Based

Aug 25, 2025
Great tutor that helped a lot!

Rosalia

Science - Organic Chemistry

Aug 4, 2025
it was great session allowed me to really know what to work on going forward

Sebastian

Science - Chemistry

Jul 21, 2025
Good tutor

Dominique

Science - Organic Chemistry

Jun 21, 2025
David was amazing!! I had no idea what I was doing going into this and now I was able to complete my assignment.

Antoinette

Science - Chemistry

Jun 5, 2025
The tutor helped me learn the concept of how to solve the problem, not just given answers which I have had happen with some other experiences with tutors in the past. This way I will know how to get the answer for myself! Thank you so very much!

Elijah

Science - Organic Chemistry

May 13, 2025
Things got a bit confusing towards the end

Bill

Science - Chemistry

Apr 28, 2025
Very helpful

Mason

Math - Calculus

Apr 18, 2025
This tutor was absolutely phenomenal, at least for me. He was straight to the point understood my questions walked me through problems very thoroughly. I really recommend this tutor to anyone and everybody

Nur

Science - Physics - Algebra-Based

Apr 7, 2025
wonderful tutor!

Kaylen

Science - Chemistry

Apr 2, 2025
i wish there was a more accessible tutroing method

Lyila

Science - Organic Chemistry

Mar 31, 2025
Great tutor, very patient!

Nur

Science - Chemistry

Mar 11, 2025
wonderful tutor!

Sri

Math - Calculus

Mar 3, 2025
Great tutor!

Mikaili

Science - Organic Chemistry

Feb 27, 2025
Great tutor very nice

Jennifer

Math - Calculus

Feb 23, 2025
David was excellent help.

Elizabeth

Science - Chemistry

Feb 20, 2025
Very helpful. Was able to break down the problem, answer my questions, and determine where my confusion was and clear it up.

Asia

Science - Physics - Algebra-Based

Jan 22, 2025
Amazing!

Katherine

Science - Chemistry

Jan 15, 2025
David S. explained the question to me really well and taught me new things I've never learned before very clearly. :)

Detra

Science - Chemistry

Jan 12, 2025
Very patient and very detailed

Enmanuel

En Español Math

Jan 8, 2025
he i s good

Razia

Science - Chemistry

Dec 17, 2024
Amazing tutor!

Test

Science - Organic Chemistry

Dec 10, 2024
David was awesome!

Evangeline

Science - Chemistry

Dec 9, 2024
amazing tutor!!

Katie

Science - Chemistry

Dec 9, 2024
good

Evangeline

Science - Chemistry

Dec 6, 2024
David was amazing!!

Muna

Science - Chemistry

Dec 4, 2024
helpful tutor!

GENESIS

En Español Math

Dec 4, 2024
muchas gracias por su tiempo

Alex

Science - Organic Chemistry

Dec 3, 2024
He is great, very nice and is willing to help

Zaria

Science - Organic Chemistry

Dec 1, 2024
David was really amazing helping me understand my chemistry work. I really wish I would have used this more often for help.

Eric

Science - Chemistry

Nov 19, 2024
Very Good.

Tammy

Science - Chemistry

Nov 6, 2024
very patient.

Megan

Science - Chemistry

Nov 5, 2024
very good
View All

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