19805

What do you want to work on?

About 19805

Subjects

Chemistry, Physics

Education

Bachelors in Engineering, General from United States Naval Academy

Masters in Chemistry, General from Case Western Reserve University

Masters in Education, General from Lynchburg College

Career Experience

Now am in retirement after decades of teaching in boarding and day schools where tutoring is a regular part of a day of helping students learn the concepts and find success.

I Love Tutoring Because

I have a real appreciation for the opportunity to make a one to one contribution to achievement and to understanding science and the beauty of how life, our world, and the universe works. Tutoring gives me the reward of daily contact with students.

Other Interests

Gardening, Web surfing

Reviews (14,455)

10858913

Science - Physics - Algebra-Based

Oct 25, 2024

Si is a Great tutor

11181560

Science - Chemistry

Oct 24, 2024

very knowledgeable and willing to teach

12069713

Science - Chemistry

Oct 21, 2024

great teacher

2723734

Science - Chemistry

Oct 20, 2024

He wasn't even sure if it was right

6224143

Science - Chemistry

Oct 20, 2024

Very helpful explanations and information!!

11181560

Science - Chemistry

Oct 19, 2024

very knowledgeable

9862295

Science - Chemistry

Oct 19, 2024

Thank you

9937442

FP - Physics - Algebra-Based

Oct 18, 2024

make the board bigger

9966221

FP - Physics - Algebra-Based

Oct 17, 2024

great tutor!

11225791

Science - Chemistry

Oct 17, 2024

Excellent and informative.

12222305

Science - Chemistry

Oct 15, 2024

Si D was very patient with me and walked me through the steps without just giving me the answer, so I feel like I can set up a stoichiometry equation now.

9966221

FP - Physics - Algebra-Based

Oct 13, 2024

Great tutor learned the concepts quickly and effectively

11225791

Science - Chemistry

Oct 12, 2024

Excellent.

10111103

Science - Chemistry

Oct 9, 2024

The session was a tad slow but otherwise it was perfect!

12099504

Science - Chemistry

Oct 6, 2024

Great tutor!

10145351

Science - Physics - Algebra-Based

Oct 5, 2024

Very easy to understand. Used some nice ideas to explain his concepts.

8702349

FP - Chemistry

Oct 4, 2024

This tutor is excellent. Helped me discover a page on my chemistry textbook that I wasn't aware of which helped with whatever trouble I was facing.

11649790

Science - Chemistry

Oct 3, 2024

Very helpful

10151499

Science - Chemistry

Oct 2, 2024

Excellent!

11225791

Science - Chemistry

Oct 1, 2024

Excellent.

9913058

FP - Chemistry

Sep 30, 2024

He was polite and helped me a lot with my confidence about my answers.

9913989

FP - Chemistry

Sep 30, 2024

Tutor explained good

8940641

FP - Chemistry

Sep 30, 2024

The tutor was kind and very helpful. I would recommend this to others.

7407452

Science - Physics - Algebra-Based

Sep 29, 2024

He so nice, he explains physics so better step to step

9308675

FP - Physics - Algebra-Based

Sep 29, 2024

Great

9308675

FP - Physics - Algebra-Based

Sep 29, 2024

great

11861121

Science - Chemistry

Sep 28, 2024

My tutor was a blessing!

11934659

Science - Chemistry

Sep 24, 2024

best of the best keep sending me this guy

10068536

FP - Chemistry

Sep 23, 2024

ummm this session went by real fast. I needed help on 2 questions, they helped with the first part on one of the questions and then ended the session

9268787

Science - Chemistry

Sep 23, 2024

Good help!

12072457

Science - Chemistry

Sep 22, 2024

Really good

10270615

Science - Physics - Algebra-Based

Sep 19, 2024

Perfect

9941756

FP - Chemistry

Sep 17, 2024

Great at helping to understand concepts!

11975929

Science - Chemistry

Sep 13, 2024

great at explaining! Thank you so much Si !

10514556

Science - Chemistry

Sep 10, 2024

Great

11649790

Science - Chemistry

Sep 9, 2024

none

12039114

Science - Chemistry

Sep 9, 2024

Really kind and very helpful.

12007218

Science - Chemistry

Sep 9, 2024

SI D was an awesome tutor! They need to add the ability to speak with the tutors.

11454392

Science - Physics - Algebra-Based

Sep 9, 2024

excellent tutor. very patient and able to break down concepts in a way I could understand them.

10270615

Science - Physics - Algebra-Based

Sep 8, 2024

Perfect! Very clarifying

11938343

Science - Chemistry

Sep 8, 2024

He was a very patient gentleman. He made me more comfortable with the topic at hand. 5 out of 5 Stars. Thanks Sir!

8872525

FP - Physics - Algebra-Based

Sep 7, 2024

Thank you saved me hours of stress.

10490920

Science - Chemistry

Sep 7, 2024

excellent

11934659

Science - Chemistry

Sep 4, 2024

best of the best improvements in just a day

11958028

Science - Chemistry

Aug 30, 2024

He was very nice and gave me great help and new ways of thinking. Thank you!

11225124

Science - Physics - Algebra-Based

Aug 29, 2024

Mr. Si was very helpful and nice. He did a great job at helping me with my homework!

11771800

Science - Physics - Algebra-Based

Aug 26, 2024

He's a great Help

11807615

Science - Physics - Algebra-Based

Aug 25, 2024

At first I feel stressed to connect with a tutor because I was worried that I might need them to explain a lot, but the tutor I got showed a lot of patience

11649686

Science - Chemistry

Aug 8, 2024

Very knowledgable.

11649933

Science - Physics - Algebra-Based

Aug 7, 2024

Great at explaining

9969659

FP - Chemistry

Aug 7, 2024

Very helpful, helped me understand the question and reach the answer.

9640833

Science - Physics - Algebra-Based

Jul 31, 2024

really good, helped me get through the problem very quickly.

11509920

Science - Chemistry

Jul 30, 2024

Great tutor. Encouraging. Straight to the point.

6954247

Science - Physics - Algebra-Based

Jul 27, 2024

Thanks for the help

11066421

Science - Physics - Algebra-Based

Jul 24, 2024

The tutor helped me with the beginning of my problem but then left the session abruptly due to a personal situation. I did not get the help I needed.

11653111

Science - Chemistry

Jul 22, 2024

Very good tutor!

9478313

Science - Chemistry

Jul 18, 2024

He did great!

11567212

Science - Physics - Algebra-Based

Jul 14, 2024

The tutor ended my session before I was done needing help

11625165

Science - Physics - Algebra-Based

Jul 14, 2024

Helpful, understands the problems.

4389249

Science - Chemistry

Jul 9, 2024

Amazing :D

9012708

Science - Chemistry

Jul 7, 2024

this tutor was very helpful, I appreciate the assistance

11505339

Science - Chemistry

Jul 5, 2024

My tutor was very pleasant and helpful. They seem to be very patient with you as well. I am happy to have experienced this help!

10090815

Science - Physics - Algebra-Based

Jul 5, 2024

Thanks for helping me solve the question I was stuck in.

11493906

Science - Chemistry

Jun 27, 2024

he was so sweet and helpful, very understanding

11571858

Science - Chemistry

Jun 25, 2024

He was amazing, patient, understanding, and able to work at the pace I needed. GIVE THIS MAN A RAISE!

4445502

Science - Chemistry

Jun 23, 2024

great teacher!

9582523

Science - Physics - Algebra-Based

Jun 18, 2024

The tutor helped demystify the problem I was working on and led me through the problem so I felt competent and able to do the rest of my work with no help. A great service!

11507663

Science - Physics - Algebra-Based

Jun 18, 2024

Si was a great assistance and he was very organized.

9396512

Science - Physics - Algebra-Based

Jun 10, 2024

Wonderful tutor! Helped me understand difficult topics!

11480272

Science - Chemistry

Jun 6, 2024

I really thankful for this science is not my thing and I sruggle really bad in It glad to have this

10887228

Science - Chemistry

Jun 6, 2024

Great!

9396512

Science - Physics - Algebra-Based

Jun 6, 2024

Wonderful tutor!

11472011

Science - Chemistry

Jun 5, 2024

good

9396512

Science - Physics - Algebra-Based

Jun 4, 2024

Wonderful tutor helped me clarify any confusing topics!

11505425

Science - Chemistry

Jun 2, 2024

Si D was amazing. They really took the time to help me understand the concept.

9322191

Science - Chemistry

Jun 1, 2024

Understands the questions well and very helpful

6314533

Science - Chemistry

May 30, 2024

Very helpful session. Tutor explained clearly and patiently.

8122559

Science - Chemistry

May 21, 2024

This is the best tutor ever he helped me

11471270

Science - Chemistry

May 20, 2024

He was really nice

11472011

Science - Chemistry

May 19, 2024

The tutor was very informative and helped to explain a lot of concepts that I didn't know

4222215

Science - Physics - Algebra-Based

May 17, 2024

great teacher

9949790

FP - Chemistry

May 16, 2024

Awesome and very knowledgable

11233470

Science - Chemistry

May 15, 2024

Great tutor who really helped me break down the problems and understand

8040280

Science - Physics - Algebra-Based

May 14, 2024

Sensational tutoring job. Its a good start to get me passing my class. And help me stay up to date.

8986085

FP - Chemistry

May 9, 2024

quick and helpful

9255993

Science - Chemistry

May 8, 2024

amazing!

8679748

FP - Chemistry

May 7, 2024

Really patient tutor! was good at explaining

11099895

Science - Chemistry

May 5, 2024

Si helped me to better understand the concept of formal charge. They were personable and kind in helping me. I enjoyed working with them.

10696457

Science - Chemistry

May 4, 2024

si the goat

7970559

Science - Physics - Algebra-Based

Apr 30, 2024

This was good to see in-depth solutions of the questions I had.

7758686

Science - Chemistry

Apr 23, 2024

he was very nice, but his handwriting made me a little confused sometimes

10696457

Science - Chemistry

Apr 22, 2024

si the greatest

9933041

FP - Physics - Algebra-Based

Apr 18, 2024

thank you so much1!!!

9580008

Science - Chemistry

Apr 15, 2024

First tutor was genuinely very helpful. Explained the info very well

8131966

Science - Chemistry

Apr 14, 2024

great

9126056

Science - Chemistry

Apr 11, 2024

Thank you for the wonderful service! You were very helpful!

6314533

Science - Chemistry

Apr 11, 2024

Very helpful session. Tutor explained clearly and patiently.

9322191

Science - Chemistry

Apr 9, 2024

Si D was really helpful in providing the correct and thoughtful answers to each one of my questions.

9209759

Science - Chemistry

Apr 9, 2024

it was super easy to breakdown where i was overthinking the problem

9322914

FP - Physics - Algebra-Based

Apr 5, 2024

Extremely kind and helpful!

6314533

Science - Chemistry

Apr 4, 2024

Very helpful session. Tutor was very helpful.

10065568

FP - Chemistry

Apr 4, 2024

no bad comments, my tutor helped a lot in my assignment and i thank him for that, first time using tutor.com and i like it

11224270

Science - Chemistry

Apr 3, 2024

tutors are great very helpful and informative

5375938

Science - Chemistry

Apr 2, 2024

the tutor i got i was good but i was having hard time understand

9790853

Science - Chemistry

Apr 1, 2024

Very thorough!

9255010

Science - Chemistry

Mar 31, 2024

amazing tutor!!!

10019094

FP - Physics - Algebra-Based

Mar 31, 2024

Understanding

8497553

Science - Chemistry

Mar 29, 2024

This was very helpful, I was able to figure out the rest of my problem on my own after getting advice and help from my tutor.

10019094

FP - Physics - Algebra-Based

Mar 28, 2024

Great

11308740

Science - Chemistry

Mar 26, 2024

Very helpful

11212130

Science - Chemistry

Mar 25, 2024

excellent

11206500

Science - Chemistry

Mar 25, 2024

tutor.com has the most knowledgeable tutor that knows their stuff. Great job Si D and thanks again for your help.

9933041

FP - Physics - Algebra-Based

Mar 23, 2024

thanks!

8613505

FP - Physics - Algebra-Based

Mar 22, 2024

Great service! super helpful

8009979

Science - Physics - Algebra-Based

Mar 21, 2024

Greatly in-depth! I was making a lot of progress in making the connections needed to solve the questions asked on my worksheet with the work laid out.

11099817

Science - Chemistry

Mar 17, 2024

didn't get the help I needed

9672175

Science - Physics - Algebra-Based

Mar 16, 2024

very clear explanation

11049370

Science - Chemistry

Mar 14, 2024

ok i guess, had more questions about it and session ended too shortly

10504420

Science - Physics - Algebra-Based

Mar 11, 2024

good help

11095061

Science - Chemistry

Mar 10, 2024

He made a few mathematical mistakes but ultimate helped me succeed.

7775728

Science - Chemistry

Mar 1, 2024

I just had a hard time understanding how some of the things were done

8983202

FP - Physics - Algebra-Based

Feb 26, 2024

Wasted too much time on small talk

10995589

Science - Physics - Algebra-Based

Feb 25, 2024

very friendly

10421194

FP - Physics - Algebra-Based

Feb 24, 2024

Great service

10421194

FP - Physics - Algebra-Based

Feb 24, 2024

Great service! Very helpful to get my grades up for physics and math

10106222

Science - Chemistry

Feb 24, 2024

Very helpful at working through the problem.

9416047

Science - Chemistry

Feb 22, 2024

Thank You

10434329

Science - Chemistry

Feb 22, 2024

Person was very kind.

8872597

FP - Chemistry

Feb 15, 2024

helped me with complex quadratics

11175418

Science - Chemistry

Feb 14, 2024

It was surprisingly helpful. I shared my screen to share the question I was struggling with and the tutor explained it to me in great detail.

10015024

FP - Physics - Algebra-Based

Feb 11, 2024

patient and answers all questions

10421194

FP - Physics - Algebra-Based

Feb 6, 2024

Excellent service!

10421194

FP - Physics - Algebra-Based

Feb 5, 2024

Great service should not stop being offered. Really appreciate that this service is available at any time to complete school work.

7656910

Science - Chemistry

Feb 4, 2024

Very good at explaining and answering even thought it was only text.

9396512

Science - Chemistry

Feb 3, 2024

Wonderful at explaining tough concepts in excellent detail!

8664462

Science - Physics - Algebra-Based

Feb 1, 2024

The session was really focused, and my tutor was very interested in making sure I understood what we were doing!

9060782

FP - Chemistry

Jan 31, 2024

My tutor was super encouraging

8858778

FP - Chemistry

Jan 30, 2024

none

8626284

Science - Physics - Algebra-Based

Jan 23, 2024

9922511

FP - Chemistry

Jan 21, 2024

Really good and straight to the point.

8576250

FP - Chemistry

Jan 9, 2024

Kind and very helpful person! (:

10953839

Science - Physics - Algebra-Based

Dec 22, 2023

the problem was more difficult due to the wording so the answer may not have been correct but Si helped me the best he could.

8129713

Science - Physics - Algebra-Based

Dec 12, 2023

5 star tutor

10394796

Science - Chemistry

Dec 8, 2023

walked me through 2 pretty difficult questions, helped me understand it better

10697103

Science - Chemistry

Dec 8, 2023

Explained and helped walk me through each step without just giving me the answer right away.

10251600

Science - Chemistry

Dec 6, 2023

I love how I received help without the answers being given to me, it helps with my understanding, Si D was amazing.

10015024

FP - Physics - Algebra-Based

Dec 4, 2023

Patient and kind.

9707707

Science - Chemistry

Dec 2, 2023

Respectful and understanding

7942140

Science - Physics - Algebra-Based

Nov 29, 2023

I was very stressed out before starting this because I did not understand. However now I do understand and feel more comfortable with this concept.

4844321

Science - Physics - Algebra-Based

Nov 26, 2023

This tutor actually helped me close the gap I was having issues with.

10854198

Science - Chemistry

Nov 26, 2023

Great Tutor, had me understand exactly what I was looking for.

8806051

FP - Chemistry

Nov 21, 2023

Very helpful.

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