Academy
XP
106
GP
0
Level
1
ACT
XP
12
GP
0
Level
1
GRE
XP
39383
GP
300
Level
10
LSAT
XP
57
GP
0
Level
2
SAT
XP
77372
GP
2070
Level
10
GRE Achievements
  • 25 Analogies Questions Answered

  • 25 Reading Comprehension Questions Answered

  • 25 Sentence Completion Questions Answered

  • 25 Antonyms Questions Answered

  • Hot Steak

    54 times

  • Hot Streak

    216 times

  • 100 Questions Correct

  • Reviewer

  • Socialite

  • Team Player

  • Well Rounded

See your GRE achievements »
SAT Achievements
  • 25 Improving Paragraphs Questions Answered

  • 25 Sentence Completion Questions Answered

  • 25 Passage Based Reading Questions Answered

  • 25 Identifying Sentence Errors Questions Answered

  • 25 Student Produced Response Questions Answered

  • Hot Steak

    87 times

  • Hot Streak

    409 times

  • 100 Questions Correct

  • Reviewer

  • Socialite

  • Study Task - Complete

  • Study Task - Bronze Medal

    3 times

  • Study Task - Platinum Medal

    3 times

  • Study Task - Silver Medal

    6 times

  • Team Player

See your SAT achievements »
Academy Achievements
  • Hot Streak

See your Academy achievements »

David A.

Hi! My name is David and I'm a tutor with Grockit with a degree in Biology and lots of experience tutoring Chemistry, and math. Despite my love for the sciences, I'm also an avid reader-- I like to learn new words reading essays by David Foster Wallace. Grockit is a lot of fun for me too; I look forward to being able to help you. Feel free to send me any questions you may have if you get stumped and please RSVP for my classes!

Upcoming Practice Sessions

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Skill Data

SAT
8096
1:37
93%
SAT Writing
2394
1:14
91%
IP: Drawing Conclusions
26
1:42
96%
Participles
247
1:16
96%
Fragments and Run-ons
182
1:18
95%
Noun/verb agreement
375
1:11
94%
Sentence structure
63
1:22
94%
Adjective/adverb confusion
156
1:03
94%
Modifiers
603
1:19
94%
Pronoun/antecedent agreement
367
1:09
93%
Identifying Sentence Errors
949
1:06
93%
Word choice
570
1:11
93%
Conjunctions
330
1:09
93%
IP: Inserting or Removing Sentences
38
1:35
92%
Idioms
758
1:11
92%
Verb forms and tense
756
1:08
92%
Punctuation
84
1:23
92%
Pronoun Ambiguity
163
1:13
92%
Excessive Wordiness and Redundancy
226
1:18
92%
Improving Sentences
1198
1:17
91%
Gerunds
105
1:16
90%
Restrictive and Non-Restrictive Clauses
77
1:08
88%
Comparisons
310
1:14
88%
Relative pronouns and clauses
252
1:11
88%
IP: Development of Ideas
93
1:37
87%
IP: Organization of Ideas
80
1:34
86%
Parallel Structure
405
1:18
86%
IP: 'Except', 'Not' or 'Least' Questions
14
1:32
86%
Improving Paragraphs
247
1:36
85%
IP: Improving or Revising Sentences
150
1:37
81%
IP: Paragraph Structure
23
1:31
78%
Show skills with fewer than 4 questions answered
SAT Math
4511
1:53
95%
Direct and inverse variation
42
1:50
100%
Inscribed Figures
10
2:30
100%
Quadrilaterals
139
2:14
99%
Isosceles triangles
54
2:27
98%
Sets
87
1:48
97%
Arc Length and Sector of a Circle
73
2:12
97%
Area of a polygon
143
2:27
97%
Probability and Statistics
436
1:56
97%
Factors, Multiples and Remainders
233
1:36
97%
Solving for one variable in terms of another
329
2:03
97%
Percent Questions
120
2:17
96%
Qualitative behavior of graphs and functions
170
2:07
96%
Slope of a line parallel and perpendicular lines
198
1:46
96%
Lines and Angles
340
1:43
96%
Exponents and Roots
534
2:02
96%
Properties of Triangles
279
1:59
96%
Equilateral triangles
48
1:55
96%
Perimeter of a polygon
114
1:59
96%
Right triangles and the Pythagorean theorem
231
2:22
96%
Operations on algebraic functions
435
1:44
95%
Translating from 'English to Math'
564
1:58
95%
Properties of integers
463
1:50
95%
Multiple Choice
3333
1:46
95%
Geometry and measurement
1069
1:58
95%
Algebra and functions
2194
1:55
95%
Area of a circle
88
2:13
95%
SAT-style functions
125
2:22
95%
Systems of linear equations and inequalities
200
2:01
95%
Graphing Quadratic Functions
151
2:08
95%
Graphing Linear Functions
103
1:44
95%
Data interpretation
386
1:50
94%
Word Problems
1550
1:59
94%
Prime numbers
68
1:58
94%
Factoring Algebraic Expressions
145
2:12
94%
Average / arithmetic mean
280
2:14
94%
Function notation and evaluation
486
2:11
94%
Ratios and Proportions
662
1:58
94%
Translations and their effects on graphs of functions
67
1:47
94%
Student Produced Response
1178
2:13
93%
Inequalities
213
1:48
93%
Numbers and Operations
1407
1:48
93%
Arithmetic word problems
407
1:56
93%
Three-Dimensional Solids (Volume and Surface Area)
105
2:02
93%
Points and lines
304
1:56
93%
Logical reasoning
528
2:06
92%
Fractions and rational numbers
358
1:48
92%
Domain and Range
25
1:40
92%
Squares
87
1:59
92%
Circumference
53
2:21
92%
Properties of Circles
195
2:11
92%
Sequences
193
2:05
91%
Number lines
150
1:40
90%
Counting problems
251
1:59
90%
Absolute value
72
2:05
85%
Show skills with fewer than 4 questions answered
SAT Reading
1191
1:20
92%
RC: Structural Agreement
19
1:47
100%
SC: One Blank
334
0:48
98%
Sentence Completion
590
0:56
98%
SC: Difficult Vocabulary
342
0:57
97%
SC: Two Blanks
256
1:07
97%
RC: Structural Contrast
32
2:01
94%
RC: Main Idea
28
1:52
93%
RC: Vocabulary in Context
73
1:24
90%
RC: Suggestions and Inferences
163
1:47
90%
RC: 1 Short Passage
57
1:17
89%
RC: 2 Long Passages
89
1:34
89%
RC: Author's Purpose or Method
109
1:41
88%
RC: 1 Long Passage
372
1:49
87%
Passage Based Reading
601
1:43
87%
RC: Order and Organization of Events and Ideas
95
1:51
86%
RC: 2 Short Passages
83
1:45
86%
RC: Interpreting Facts and Details in Context
207
1:41
86%
RC: Author's Tone or Attitude
36
1:45
78%
RC: Analogies
5
2:00
60%
RC: Assumptions
6
1:53
50%
Show skills with fewer than 4 questions answered

TestimonialsWrite a Testimonial

Sundas

after 144 questions and roughly 7.5 hours with David, Sundas said:

David is the best math tutor on grockit! I always have fun in my lessons with him and learn a whole lot. He explains with detail until you understand the question completely. Thanks for your help! =)
Notsand

after 100 questions and roughly 4 hours with David, Notsand said:

David is an awesome tutor! Its always fun working and learning with him :) He's very quick at solving mathematics problems and he explains the question by giving concrete logic which never washes away from my mind.Thnx for ur help David! U rock :D
Arag B.

after 65 questions and roughly 3 hours with David, Arag said:

Amazing tutor, he really improved my vocab, thank you very much!!
Akhil G.

after 64 questions and roughly 1.5 hours with David, Akhil said:

David is a great teacher. He is really supportive and explains the answer in a clear and coherent manner. He is also fun to talk too when you are working on the problems. He is a great math teacher, so if you are stuck on math definitely look for him -- although I'm sure he is just as good at Reading and Writing.
edwin

after 57 questions and roughly 2 hours with David, edwin said:

He is a great tutor!
Tiffany R.

after 55 questions and roughly 3 hours with David, Tiffany said:

David is a great tutor! He is very patient with his students and is there every step along the way. He gives you examples, pointers, and tips that will not only help you with the problem at hand but with future SAT questions. He not only explains the processes involved in solving the questions, but why they are being performed. David helps you identify the logic and reason behind the questions. Thanks for all the help and I will always RSVP for your classes!
amber p.

after 55 questions and roughly 3.5 hours with David, amber said:

David is the best tutor he is so friendly that he feels to be a real friend. The way he explains is his way. He is the best........
Ashritha R.

after 44 questions and roughly 2 hours with David, Ashritha said:

firstly...i like to thnq....u r awesome man.... u really helped me alot...first i thought u r a student like me.I opened ur profile...then i got to know about you.... your way of explaining the answer is also good.....thnq so much...:)
Serch

after 39 questions and roughly 2 hours with David, Serch said:

Great teacher!!
Matt D.

after 34 questions and roughly 1 hours with David, Matt said:

cool guy, great math tutor 5*****
Katrina B.

after 30 questions and roughly 1.5 hours with David, Katrina said:

David is a terrific, helpful tutor. He explained the problems I didn't understand, and wasn't always talking about math. I recall Skateboarding, medicine, and even photosynthesis! No seriously, David is remarkably exceptional tutor. Thanks, David! I hope to study with you again.
Eddie E.

after 24 questions and roughly 1 hours with David, Eddie said:

He was extremely good at breaking down everything. He made sure you got it while giving you support. He also made sure that he wouldn't move on until he made sure that you understood. GREAT TUTOR!
mitul g.

after 22 questions and 35 minutes with David, mitul said:

great teacher! i loved his presence in the game he indulges in every problem being faced thank u sir
Josmar R.

after 21 questions and roughly 1.5 hours with David, Josmar said:

Hey david well I wanna that you help me for practicing to SAT Can you help me.? I will be here every day since 10am well bye thank
pratiti G.

after 20 questions and roughly 1.5 hours with David, pratiti said:

He is an amazing touter! very patient and good at explaining things! hopefully see you around!
Briget A.

after 11 questions and 37 minutes with David, Briget said:

Since im new he was very understanding and helped more then anyone ever on here. He was patient and now i feel more confidant
Poon P.

after 11 questions and 35 minutes with David, Poon said:

He gives a good tactics to crush SAT Maths Thanks a lot
Oswaldo T.

after 11 questions and 30 minutes with David, Oswaldo said:

Its easy to understand him, He explain step by step any kind of problem¡!¡!¡!
Amrendra M.

after 7 questions and 17 minutes with David, Amrendra said:

He is really fantastic tutor. I like his ways of solving and teaching method. Amii
Nikhita J.

after 6 questions and 26 minutes with David, Nikhita said:

David ammons was a very helpful person! Thank you, and Grockit should be proud to have such a good tutor who connects with all of us so efficiently....!
jena j.

after 4 questions and 12 minutes with David, jena said:

even though you were not there long, you helped me out alot. you made everything seem so simple and easy. you also clarified the answer so magnificently with out all the extra nonsence. thank you very much and im looking forward to our ext session!

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