Registration for the 3 October SAT closes Friday 18 September. There is still time to prepare: one-to-one lessons with a Cambridge tutor, planned back from your test date. The intro call and trial lesson are free.
Altair Prep

Altair Prep · Online, One-to-One · Worldwide

SAT Tutoring & CoachingBoth halves of the SAT.
One Cambridge tutor.

One-to-one tuition in live, interactive online lessons to break 1300, push past 1500, wherever in the world you are.

“Lewis helped me get my score up from 1200 to 1400 in a month.”Liora, SAT student · more student stories ↓

The trial lesson is a full lesson, free, with nothing to pay and no commitment afterwards. You can also try a free work pack, send an enquiry, or message +44 7380 493894.

A real lesson board, sped up · watch the full demo ↓

Your tutor

Lewis Watson

Perfect 1600 SAT score · MEng, University of Cambridge · Tutoring full time since 2015

Lewis Watson, founder and tutor at Altair Prep

Lewis read Chemical Engineering at the University of Cambridge and has worked as a full-time private tutor since 2015, teaching one-to-one to students preparing for high-stakes exams. A native English speaker, he teaches both halves of the SAT himself: the Math with an engineer’s command of the quantitative section, and Reading & Writing with the ear for language the verbal section rewards.

Much of the early work was residential, living with families in Dubai and Saudi Arabia and teaching through term time and exam season, before the practice moved mostly online.

More about Lewis →

Student voices

What students say

I got into UPenn!! Thank you so so much for all of your help, couldn’t have done it without you.”

SAT student · on results day

“Lewis helped me get my score up from 1200 to 1400 in a month. I found the Math section particularly difficult, as I wasn’t taking a math class at school that year. The online format worked well: Lewis marked my homework on our shared document before each lesson, so we focused only on the hardest problems.”

Liora · SAT student

“I think the SAT went well! I could do all of the maths questions which was good.”

SAT student · message after the exam

“The online format worked so well that I started using the GoodNotes app for my other classes too. With both of us writing on the same document, lessons feel very active. I’m solving the question more or less alone, with Lewis jumping in if I go astray.”

Ahmed · SAT student

“Lewis is a patient teacher who will try lots of ways of explaining a question until one method or technique feels right. He really helped me realise the power of the graphing calculator in the Math section.”

Riccardo · SAT student

“Lewis sent me lots of homework and regularly checked up on it, which gave me the practice I needed to improve my score.”

Carolina · SAT student

Try the materials

Four practice sets, free to download

These are the first four of the thirty work packs that come with tuition: the same material, in the same order, that a student receives between lessons. The first is yours with nothing to sign up for; the other three unlock with an email address below. Each opens with short drills to get the mechanics automatic, then moves into SAT-style questions at two levels of difficulty.

They are supplied without answers on purpose. Marking your own work against a key teaches you what you got wrong; it does not tell you why. That is the part we do for you, below.

01

Work pack 1 of 30
Exponents & Radicals

Negative and fractional exponents, index laws, simplifying surds, and the rewriting questions the SAT builds on top of them.

PDF · 5 pages · 40 drills + 32 SAT-style questions

Download worksheet
02

Work pack 2 of 30
Expressions

Factoring, difference of two squares, adding and simplifying algebraic fractions, and the equivalent-expression questions that follow.

PDF · 4 pages · 29 SAT-style questions, two levels

Download worksheet Enter your email below
03

Work pack 3 of 30
Manipulating & Solving Equations

Rearranging for a named variable, proportion and cross-multiplication, radical equations, and the “value of the whole expression” questions that reward not solving for x.

PDF · 7 pages · 53 SAT-style questions, two levels

Download worksheet Enter your email below
04

Work pack 4 of 30
Other Types of Equation Questions

No solution, infinitely many solutions, absolute value, and the “true for all values of x” coefficient-matching questions that trip students at every level.

PDF · 5 pages · 40 SAT-style questions, two levels

Download worksheet Enter your email below

One email, and only if you ask a question back. We do not pass your address to anyone. Privacy.

Your packs are ready.

The links below are yours for the next 24 hours. If they expire, fill the form in again.

No charge, no obligation

Send us your working and we will mark it

Do a sheet on paper, photograph or scan every page including the rough working, and send it over. Lewis marks it himself and replies with a written review: what you got right, where the marks went, and the two or three habits costing you the most points. It usually comes back within two working days.

You do not need to be a student to ask, and there is nothing to sign up for.

Or email lewis@altairprep.com directly and attach photos of your working.

Ask a question

Not ready to book? Just ask.

Tell us the student’s year group and target test date and Lewis will reply within one working day. No call, no commitment.

Thank you. Enquiry received.

You will hear back within one working day.

Prefer to message? WhatsApp +44 7380 493894

Interactive by design

Lessons you write on, not watch

Judgment isn’t absorbed from videos. It’s built by doing. Every lesson happens on a live shared whiteboard: students with an iPad and Apple Pencil sketch graphs, annotate passages, and set out working in their own hand while the tutor writes alongside them in real time.

An unedited stretch of a real lesson board (53 seconds, no sound). This is the actual tool, not a mock-up: the student writes on the same page at the same time.

Scheduling

Lesson times that fit your school week

Every time below is your local time. Book a slot in the window that suits you, and the same slot is held each week for the length of the course.

Where you areAvailable lesson timesDays
United Kingdom9:00 am to 5:00 pmMonday to Friday
Central Europe10:00 am to 6:00 pmMonday to Friday
Saudi Arabia, Qatar, Kuwait, Bahrain & Jordan11:00 am to 7:00 pmMonday to Friday
UAE & Oman12:00 pm to 8:00 pmMonday to Friday
Singapore & Hong Kong4:00 pm to 10:00 pmMonday to Friday

Times shown are for UK summer time; in the UK winter, times in the UAE, Saudi Arabia and Asia move one hour later, while UK and European times are unchanged. Weekends and school-holiday lessons are available on request, and the schedule flexes around exam season and Ramadan. In London? In-person lessons can be arranged; just ask when you enquire.

Plan ahead

Upcoming SAT test dates

The Digital SAT runs on the same dates worldwide. Twelve to sixteen weeks of weekly lessons is the usual run-up, though students aiming past 1500 often start a full year out and others come in for a concentrated couple of months. Both routes are set out here. Either way we plan backwards from the date you choose, so the best time to start is well before the registration deadline.

Test dateRegistration deadline
Saturday 3 October 202618 September 2026
Saturday 7 November 202623 October 2026
Saturday 5 December 202620 November 2026
Saturday 6 March 202719 February 2027
Saturday 1 May 202716 April 2027
Saturday 5 June 202721 May 2027

Dates from the College Board. Registration is through mysat.collegeboard.org; late registration is available worldwide for an extra fee. Seats at international test centres can fill early, so register as soon as you have chosen a date. See every date with the deadline and when to start preparing →

Two ways to prepare

A long run at 1500+, or a fast one

Some students come to us a year out, with time to build the score properly. Others have a sitting a couple of months away and need to move. Both work, and they are run differently. Which one it is gets settled at the free intro call, once we know the target score, the date, and how much time there is in between.

Route one

The long course: a year, weekly, no stone unturned

Built for students targeting 1500 and above, where the last hundred points come from judgment rather than pace. One lesson a week through the school year, with exercises set after each one and marked before the next, so the work is continuous rather than crammed. Every College Board topic is worked at each level of difficulty and signed off on the student’s tracker, which is why nothing on the paper is unfamiliar by test day.

Understanding first, speed later. Past 1400 that means hours spent on genuinely difficult problems rather than on more practice papers, and learning both routes through each one (the Desmos graph and the algebra behind it) until choosing between them is instant. Frequency steps up in the final weeks before the sitting, and full-length mocks are set, marked and reviewed throughout, so the target is measured rather than assumed.

Route two

The short course: a couple of months, moving quickly

For students whose date is already close, or who are scoring solidly and want a jump. Lessons run more than once a week and cover ground fast: every question type on the current Digital SAT, the methods that cut through the traps the test sets, and exam strategy: pacing, question order, when a fast route is safe and when to abandon one.

A gain of around 200 points over a couple of months is a realistic aim for a student who does the work between lessons; one recent student went from 1200 to 1400 in a month. It is intensive by design, and it builds on whatever base is already there.

Both routes are taught by Lewis himself, on the same single hourly rate, billed after each lesson has taken place. There is no package to buy and no minimum commitment either way, so a plan can be stretched, shortened or paused as the year goes. See the fee sheet →

How the plan runs

From a cold baseline to exam ready, level by level

Whichever route fits, the plan itself runs in the same order: a real diagnostic first, then every topic worked from its easiest form up to its hardest, checked against a fresh practice test along the way. It is why the topic tracker below runs in three levels rather than one, and it is worth setting out plainly.

Baseline

A cold practice test, before any teaching starts

The first step is a full practice test in the official Bluebook app, sat cold and with as little preparation as possible. Come with a pen, paper and calculator ready, and go in aware that the pacing allows only around a minute a question. Whatever that produces is the honest starting point everything else is measured against, not a score to worry about.

Level 1

Every topic, at its most straightforward, then a second test

Next comes every Level 1 question from every topic area, working across the whole syllabus rather than picking favourites. It rarely needs much explaining. What it buys is familiarity: by the time a second practice test follows, every question style has been seen at least once, and the pace the exam demands starts to feel normal rather than alarming. The improvement on the baseline is usually clear by this point.

Level 2

More concepts, and questions built to have two routes through them

Level 2 is a real step up. There are more concepts to learn, and some questions can be solved two different ways, so choosing between them becomes part of the skill. In Reading & Writing especially, this is where the wrong answers stop being obviously wrong: the examiners have built genuinely convincing distractors, and getting past them takes real care rather than a quick read.

Level 3

The hard material a score around 1400 depends on

Level 3 is difficult, and reaching a score around 1400 means working through all of it and understanding how every question is solved, not just recognising the type. This is where it matters to know a problem both with Desmos and with algebra: relying on Desmos alone starts to break down here, because some questions need the underlying concept, not just a graph. Reading has to be careful too. Skimming stops working, because the convincing wrong answers are often contradicted by one small piece of information, hidden or described in a different form to the question itself.

Beyond

Reaching higher than that

Past this point, the ceiling is set by material outside the standard topic sets. Reaching for the highest scores means working through a handful of genuinely difficult questions from other publishers too, so nothing on the day is unfamiliar, whatever form it takes. By this stage, the easier questions should already feel consistently effortless.

This is the same structure behind the topic tracker below: one row per College Board topic, three columns for the three levels, filled in as each one is worked and signed off.

Nothing left to chance

Every topic, tracked to done

Lessons are only half the work; the marks come from the independent practice between them. Every student has a live tracker like the one below, one row per College Board topic, one column per difficulty level. Assigned work stays on the board until it is finished and reviewed, so by test day every content domain and every question style has been covered, practised, and signed off. Parents can see it whenever they like.

Nadia · Reading & Writing

DomainTopicLevel 1Level 2Level 3
Craft & StructureCross-Text ConnectionsDoneDoneTo come
Words in ContextDoneDoneDone
Expression of IdeasRhetorical SynthesisDoneDoneTo come
Information & IdeasCommand of EvidenceDoneIn progressTo come
InferencesDoneIn progressTo come
Standard English ConventionsBoundariesDoneDoneDone

Nadia’s Reading & Writing tracker, part-way through her course. Math runs on its own board, domain by domain, in the same way.

Fees

One rate, one tutor

One rate, covering everything below; you can view the full fee sheet here. Lessons are one-to-one and typically an hour long, and billed after each one has taken place. Nothing is paid in advance and there is no minimum commitment. The intro call and trial lesson are free.

Because homework is set and marked between lessons, students who start early in the school year and put the work in usually find once a week is enough, so a modest block of hours goes a long way. Closer to a sitting, frequency naturally steps up if it’s needed, and a short intensive course runs at two or more lessons a week. See the two routes. The aim is always the fewest lessons that reach the target score.

Equally, there is no need to sign up for weekly lessons at all. If a student is already scoring well and just wants to push those last stubborn points higher, Lewis is glad to take on a handful of sessions honed in on their most difficult problems. Often a couple of focused hours on the right question types is all it takes.

Registration for the 3 October sitting closes on Friday 18 September. The intro call and trial lesson are free and come first, so the earlier you ask, the more of the run-up is left to use.

Common questions

FAQ

We’re already scoring around 1400. What is left to gain?

Every SAT course teaches tricks: elimination, plugging in numbers, pacing rules. They matter, because without speed you run out of clock. But the test is engineered so that its hardest questions look like trick questions, then quietly break the pattern, and students who lean on shortcuts alone stall in the low 1400s. Getting past that is not a matter of sitting more papers. It is hours spent on genuinely difficult problems with a tutor who can see where the reasoning goes wrong as it happens, on a shared board, and stop it there. A 1500+ score comes from judgment: knowing when the fast route is safe, and recognising the moment a question demands real problem-solving instead.

Is the built-in Desmos calculator enough for the Math section?

No, and that is one of the clearest reasons able students stall below 1500. Desmos is built into Bluebook, it is excellent, and it will carry a student a long way, but a Desmos-only approach has a ceiling, because some questions cannot usefully be graphed at all and a student who never built the algebra has nothing to fall back on when one appears. So both routes get taught on the same question: the graph and the algebra behind it. The point is not that algebra is purer. Where both work, the graph is usually the better choice, because it is faster and harder to get wrong. The skill worth training is spotting, in seconds, the questions where it will not work.

What material do you teach from?

Preparation is anchored to official College Board material, with regular full-length timed mocks in Bluebook so nothing on test day is a surprise. Alongside it, Lewis brings his own bank of challenging problems, built for the current Digital SAT and kept up to date as the test changes. That means less of each lesson spent drilling questions a student already finds easy, and more on the harder problems that resist a memorised method, which is exactly where the points above 1500 are won.

How does payment work?

One rate, set out on the fee sheet. Take lessons as and when you need them, billed after each one has taken place, with no minimum commitment and nothing paid in advance. Payment is by card link or bank transfer, and there is nothing to pay before the free intro call and trial lesson.

What does the Digital SAT involve?

The SAT is now fully digital, taken in the Bluebook app at an approved test centre. It lasts about 2 hours 14 minutes and has two sections, Reading & Writing and Math, each split into two adaptive modules. Scores range from 400 to 1600, and a calculator is allowed throughout the Math section.

What equipment does the student need?

A laptop or tablet, a quiet hour, and a stable connection. An iPad with an Apple Pencil is strongly recommended, because it lets the student write directly on the shared whiteboard, which makes lessons far more interactive. A laptop works too.

How far ahead of the test should we start?

Twelve to sixteen weeks of weekly lessons is a comfortable runway for most students, and it is the most common choice. Students aiming above 1500 often start a full year out and meet weekly through the school year, which leaves room to cover every topic at every difficulty level rather than triage. At the other end, a concentrated two-month course with lessons more than once a week can move a score a long way when the date is already close. The SAT is offered on several international dates each year, so we plan backwards from the chosen sitting, leaving time for a retake before university deadlines if needed.

How much can a score move in a couple of months?

Around 200 points is a realistic aim for a student working intensively over two months and doing the practice set between lessons; one recent student went from 1200 to 1400 in a month. The gain comes from three things at once: covering every question type so nothing on the paper is a surprise, learning the methods that cut through the traps the test sets, and fixing pacing so the clock stops costing marks. Students starting from a lower base, or aiming past 1500, usually need longer than that.

Do you teach both sections?

Yes, both Math and Reading & Writing, by the same tutor. Reading & Writing is taught by a native English speaker, which matters on a section built around nuance in vocabulary, grammar and argument; the Math is taught by the same person, drawing on a Cambridge Chemical Engineering degree and over a decade of one-to-one teaching. One tutor across the whole test, so the verbal half is never handed to an associate. Many students weight their plan towards one section based on their diagnostic; that balance is reviewed after each mock.

Are parents kept in the loop?

Yes. Parents receive short progress updates after mocks, and are welcome to join a review call at any point. You will always know the current score, the target, and the plan to close the gap.

Get started

Book a free trial lesson

Book it on WhatsApp

Or send the form below (the student’s year group, city and target test date are enough) and Lewis will reply within one working day with times that suit your zone. The call is a free chat about target universities, test dates and current level, followed by a trial lesson on real SAT questions, so you see exactly how Lewis teaches before you pay for anything.

Thank you. Enquiry received.

You will hear back within one working day. If it is urgent, write to lewis@altairprep.com.

Prefer to message? WhatsApp us on +44 7380 493894
Prefer email? Write to lewis@altairprep.com