--- title: "Trigonometry Tutoring Online: Unit Circle to Identities" description: "Live trigonometry tutoring online for US high school students: right triangles, radians and the unit circle, identities, sinusoidal models and AP Precalculus Unit 3." canonical: https://learn.modernagecoders.com/trigonometry-tutoring-online source: src/pages/trigonometry-tutoring-online.html --- > Live trigonometry tutoring online for US high school students: right triangles, radians and the unit circle, identities, sinusoidal models and AP Precalculus Unit 3. In short Trigonometry in US high schools is taught in two places: right-triangle ratios in Geometry, under the Common Core standards G-SRT, and trigonometric functions on the unit circle in Algebra 2 or Precalculus, under F-TF, which AP Precalculus covers in Unit 3. Modern Age Coders teaches trigonometry live online, in a group of 15 to 20 or one to one, through our High School Mathematics course, with AP Precalculus preparation for exam students. The first class is free. Where to start ## Three courses that teach trigonometry properly Choose by goal: the school course, the AP exam or the SAT. [![High School Mathematics course thumbnail](/images/high-school-maths.webp) TT / 01 High school math, grades 9 to 12 Right triangles in Geometry, the unit circle in Algebra 2 and Precalculus. Open the syllabus →](/courses/complete-high-school-mathematics-mastery)[![AP Precalculus course thumbnail](/images/ap-precalculus.webp) TT / 02 AP Precalculus Units 1 to 3, including trigonometric and polar functions. Open the syllabus →](/courses/ap-precalculus-exam-prep-course)[![SAT Math 800 Prep course thumbnail](/images/sat-math-prep.webp) TT / 03 SAT Math Right triangles and trigonometry within the geometry domain. Open the syllabus →](/courses/sat-math-prep-course) Where trig is taught ## Which high school course teaches trigonometry? Usually two of them. The Common Core high school standards put right-triangle trigonometry in the geometry category and the trigonometric functions in the functions category, so most students meet sine twice: once in Geometry and again in Algebra 2 or Precalculus. | Code | Strand | What the standard asks | Marked (+)? | | --- | --- | --- | --- | | G-SRT.C.6 | Geometry | By similarity, "side ratios in right triangles are properties of the angles in the triangle", which defines the trig ratios | No | | G-SRT.C.7 | Geometry | Explain and use the link between sine and cosine of complementary angles | No | | G-SRT.C.8 | Geometry | Solve right triangles "in applied problems" with trig ratios and the Pythagorean Theorem | No | | G-SRT.D.9 to D.11 | Geometry | Area as 1/2 ab sin(C); prove and use the Laws of Sines and Cosines | Yes | | F-TF.A.1 and A.2 | Functions | Radian measure; the unit circle extends trig functions "to all real numbers" | No | | F-TF.A.3 and A.4 | Functions | Exact values for pi/3, pi/4 and pi/6; symmetry and periodicity | Yes | | F-TF.B.5 | Functions | Model periodic situations "with specified amplitude, frequency, and midline" | No | | F-TF.B.6 and B.7 | Functions | Inverse trig functions and solving trig equations in context | Yes | | F-TF.C.8 | Functions | "Prove the Pythagorean identity" and use it to find one ratio from another | No | | F-TF.C.9 | Functions | Prove and use the addition and subtraction formulas | Yes | ### What the (+) means The standards document explains the mark on page 57: "Additional mathematics that students should learn in order to take advanced courses such as calculus, advanced statistics, or discrete mathematics is indicated by (+)". Standards without it are meant for every college-ready student. In practice, a student heading for calculus needs the (+) items too: exact values from special triangles, inverse functions, the Laws of Sines and Cosines and the addition formulas. That is where most of our trigonometry tutoring hours go. ### Why triangles come first The geometry introduction says "The definitions of sine, cosine, and tangent for acute angles are founded on right triangles and similarity". Two similar right triangles share the same angle and the same ratios, whatever their size, and that is why sin 35° is a single number. A student who has seen that argument does not need SOH CAH TOA as a spell. They know the ratio is fixed by the angle, and the memory aid becomes a label for something they already understand. Sources: [Similarity, Right Triangles, and Trigonometry](https://www.thecorestandards.org/Math/Content/HSG/SRT/), [Trigonometric Functions](https://www.thecorestandards.org/Math/Content/HSF/TF/) and the high school geometry introduction at thecorestandards.org, and the [standards PDF](https://learning.ccsso.org/wp-content/uploads/2022/11/ADA-Compliant-Math-Standards.pdf), read 31 October 2026. Some states use their own standards with different codes. We are not connected with the Common Core initiative, the College Board or any state or district. Right triangles ## How do you solve a right triangle with trigonometry? Name the angle you know, label the sides from that angle (opposite, adjacent, hypotenuse), pick the one ratio that links what you have to what you want, and solve. Here are four of our own examples at Geometry level. | Problem | Sides from the angle | Ratio chosen | Working and answer | | --- | --- | --- | --- | | A 20-foot ladder leans on a wall at 70° to the ground. How high does it reach? | Hypotenuse 20, want opposite | Sine | height = 20 sin 70° = 18.79 feet | | A tree's shadow is 30 feet long when the sun is 35° above the horizon. How tall is the tree? | Adjacent 30, want opposite | Tangent | height = 30 tan 35° = 21.01 feet | | A right triangle has legs 8 and 15. Find the smaller acute angle. | Opposite 8, adjacent 15 | Inverse tangent | angle = tan-1(8/15) = 28.07°; hypotenuse 17 | | Show that sin 25° equals cos 65°. | The same triangle, read from each acute angle | Complementary angles (G-SRT.C.7) | Both are 0.4226, because the side opposite 25° is adjacent to 65° | ### The step students skip Labeling the sides from the chosen angle is the step most errors come from. "Opposite" and "adjacent" are not fixed names for sides; they change when you look from the other acute angle. In the 8-15-17 triangle, the side of length 8 is opposite one angle and adjacent to the other. We have students mark the angle with a dot and write O, A and H on the sides every time, until they no longer need to. It takes ten seconds and removes most wrong-ratio mistakes. ### Check with a second fact Every right-triangle answer can be checked another way. For the ladder, the foot of the ladder is 20 cos 70° = 6.84 feet from the wall, and 6.84 squared plus 18.79 squared comes to about 400, which is 20 squared. For the 8-15-17 triangle, the two acute angles must add to 90°, so the other angle is 61.93°. Small checks like these are what make a student confident on a test without anyone marking the work. The unit circle ## How do you learn the unit circle without memorizing it? Learn three triangles and four sign rules, then rebuild any point. Standard F-TF.A.1 defines a radian as "the length of the arc on the unit circle subtended by the angle", so the circle and radians arrive together. ### Radians as a length On a circle of radius 1, an angle of 1 radian cuts off an arc of length 1. A full turn is the whole circumference, 2π, so 360° equals 2π radians and 180° equals π. Every conversion follows from that one line. Our example: 225° is 225/180 of π, which is 5π/4. It is π/4 past the half turn, so it sits in quadrant III, with reference angle 45°. ### Rebuilding a point The 45° triangle on the unit circle has both legs √2/2. In quadrant III both coordinates are negative, so the point at 5π/4 is (−√2/2, −√2/2). Cosine is the x coordinate and sine is the y coordinate, so both equal −√2/2 and the tangent is 1. The same three steps, reference angle, triangle, signs, give every special value. Students who learn the steps can answer for 7π/6 or 5π/3 just as quickly as for angles they drilled. | Quadrant | Angles in radians | sin (y) | cos (x) | tan (y/x) | | --- | --- | --- | --- | --- | | I | 0 to π/2 | Positive | Positive | Positive | | II | π/2 to π | Positive | Negative | Negative | | III | π to 3π/2 | Negative | Negative | Positive | | IV | 3π/2 to 2π | Negative | Positive | Negative | Our identity example for F-TF.C.8: if sin θ = −3/5 and θ is in quadrant III, the Pythagorean identity sin2θ + cos2θ = 1 gives cos2θ = 1 − 9/25 = 16/25, so cos θ = ±4/5. Quadrant III makes cosine negative, so cos θ = −4/5, and tan θ = (−3/5)/(−4/5) = 3/4. The identity gives the size; the quadrant gives the sign. Graphs and models ## How are trigonometric functions used to model real situations? Anything that repeats can be modeled with a sine or cosine. Standard F-TF.B.5 asks students to choose a trig function for a situation with a given amplitude, frequency and midline. Our Ferris wheel example shows how each number in the equation comes from the story. | Feature | From the story | In h(t) = 60 − 50 cos(πt/4) | | --- | --- | --- | | Midline | Height of the center | 60 | | Amplitude | Radius, half the diameter | 50 | | Period | One turn every 8 minutes | 2π divided by π/4 is 8 | | Starting point | Rider begins at the lowest point | Minus cosine starts at its minimum: h(0) = 10 | | Check | Top of the wheel after half a turn | h(4) = 60 + 50 = 110 | ### Solving with the model When is the rider 85 feet up? Set 60 − 50 cos(πt/4) = 85, so cos(πt/4) = −1/2. On one turn, πt/4 = 2π/3 or 4π/3, giving t = 8/3 and t = 16/3 minutes, about 2.67 and 5.33 minutes. Two answers in one turn is the point. The rider passes 85 feet on the way up and again on the way down, and a student who stops at the first answer has missed half the question. ### The same idea without a story Our equation example: solve 2 sin x − 1 = 0 for 0 ≤ x < 2π. Then sin x = 1/2. The reference angle is π/6, and sine is positive in quadrants I and II, so x = π/6 or x = 5π/6. A calculator's inverse sine gives only π/6. Standard F-TF.B.6 is about exactly that: inverse functions exist only on a restricted domain, so the other solutions come from the circle, not the button. ***check_trig.py (our example)**Python 3* ``` import math # Ferris wheel: h(t) = 60 - 50 cos(pi t / 4) h = lambda t: 60 - 50 * math.cos(math.pi * t / 4) print([round(h(t), 2) for t in (0, 2, 4, 8/3, 16/3)]) # Law of Cosines: sides 7 and 9 with a 60 degree angle between them c = math.sqrt(7**2 + 9**2 - 2 * 7 * 9 * math.cos(math.radians(60))) area = 0.5 * 7 * 9 * math.sin(math.radians(60)) print(round(c, 2), round(area, 2)) ``` Output: [10.0, 60.0, 110.0, 85.0, 85.0], then 8.19 27.28. The third side is √67 because 49 + 81 − 63 = 67, and the area uses 1/2 ab sin(C) from G-SRT.D.9. Checking a hand answer with three lines of code is a habit we teach, never a replacement for the working. AP and SAT ## How much trigonometry is on AP Precalculus and the SAT? A lot on AP Precalculus, a little on the SAT. In the College Board's AP Precalculus Course and Exam Description, Unit 3, Trigonometric and Polar Functions, carries 30 to 35 percent of the multiple-choice section. On the SAT, trigonometry sits inside the Geometry and Trigonometry domain. | Section | Questions | Time | Share of score | Calculator | | --- | --- | --- | --- | --- | | I, Part A: multiple choice | 29 | 65 minutes | 43.75% | Not permitted | | I, Part B: multiple choice | 13 | 40 minutes | 18.75% | Graphing calculator required | | II, Part A: free response | 2 | 35 minutes | 18.75% | Graphing calculator required | | II, Part B: free response | 2 | 35 minutes | 18.75% | Not permitted | ### What Unit 3 contains The Course and Exam Description lists 15 topics in Unit 3, from 3.1 Periodic Phenomena through sine, cosine and tangent, sinusoidal transformations and modeling, the tangent function, inverse trigonometric functions, equations and inequalities, secant, cosecant and cotangent, equivalent representations, to 3.13 to 3.15 on polar coordinates, polar graphs and rates of change in polar functions. AP Central lists the 2027 exam for Tue, May 11, 2027, and names Free-Response Question 3 as Modeling a Periodic Context, which is the Ferris wheel kind of problem above. Unit 4 is "Not assessed on the AP Exam". ### Trigonometry on the SAT The College Board's SAT Suite page lists four topics in its Geometry and Trigonometry domain, one of which is "Right triangles and trigonometry". Expect right-triangle ratios, complementary angles and radian conversions rather than identities or graphs. For SAT students we keep trigonometry tight: the right-triangle work in the second section of this page, plus degrees and radians, practiced in the digital format alongside the rest of the math section. Sources: the [AP Precalculus exam page](https://apcentral.collegeboard.org/courses/ap-precalculus/exam) and the AP Precalculus Course and Exam Description on AP Central, and the [SAT Geometry and Trigonometry page](https://satsuite.collegeboard.org/sat/whats-on-the-test/math/types/geometry-trigonometry), read 31 October 2026. AP and SAT are College Board trademarks; we are not affiliated with the College Board. For official practice, use the free questions the College Board publishes. A plan that works ## What is the fastest way to learn trigonometry for beginners? Learn it in the order the ideas depend on each other, and do not move on until the previous step is automatic. This is the order our tutors use for a student starting from scratch. 1. **Similar triangles and the three ratios.** Why a ratio depends only on the angle; labeling sides from an angle. 2. **Solving right triangles.** Missing sides, then missing angles with inverse functions; angles of elevation and depression. 3. **Special triangles.** The 30-60-90 and 45-45-90 triangles, built from a square and an equilateral triangle, not memorized. 4. **Radians and the unit circle.** Arc length, conversions, reference angles and signs by quadrant. 5. **Graphs.** Sine and cosine as the unit circle unrolled; amplitude, period, midline and phase shift. 6. **Equations and identities.** The Pythagorean identity first, then solving on an interval, then addition formulas. 7. **Non-right triangles.** The Laws of Sines and Cosines, including the ambiguous case. | Mistake | What it looks like | The fix we teach | | --- | --- | --- | | Calculator in the wrong mode | sin 30 gives −0.99 instead of 0.5 | Check the mode before every test; know sin 30° = 1/2 as a sense check | | Wrong ratio | Uses cosine for the opposite side | Mark the angle, label O, A, H, then choose | | Sign lost | cos 5π/4 written as positive | Find the quadrant before the value | | One solution only | Stops at x = π/6 | Ask which other quadrant shares the sign | | Ambiguous case missed | One triangle found where two exist | Sketch both possible triangles for side-side-angle | The last row is in the standards too. The geometry introduction notes that the Laws of Sines and Cosines "yield two possible solutions in the ambiguous case, illustrating that Side-Side-Angle is not a congruence criterion." A quick sketch of both triangles is the habit that catches it. Where the student is ## Four levels of trigonometry understanding Our way of placing a student at the first class, so lessons start at the right point. | Level | Can do | Next step | | --- | --- | --- | | 1. Ratios | Solves a right triangle with a calculator | Special triangles and exact values | | 2. Circle | Finds exact values on the unit circle | Graphs and transformations | | 3. Functions | Graphs and models with sine and cosine | Equations on an interval, identities | | 4. Fluent | Proves identities, uses the Laws of Sines and Cosines | Polar functions, AP free response, calculus | ### For parents A student who is fine at level 1 can still fall apart at level 2, because the unit circle is where memorizing stops working. That is the most common time families contact us. Ask which course and unit your teen is in. It tells us whether to start with triangles or with the circle. ### For students If you cannot rebuild a value from a triangle, you do not know it yet, even if you remember it. Draw the picture first. Every trig question has one. The catalogue ## Nine courses around trigonometry What comes before trig, what includes it, and where it leads. I ### Before trigonometry Grades 8 to 10 TT / B / 01 #### Algebra foundations Equations and functions, solid. [Open the syllabus](/courses/algebra-foundations-masterclass) TT / B / 02 #### Middle school math Similarity and the Pythagorean Theorem. [Open the syllabus](/courses/comprehensive-middle-school-mathematics-mastery) TT / B / 03 #### Math through coding Angles and graphs in Python. [Open the syllabus](/courses/maths-through-coding)II ### With trigonometry Grades 10 to 12 TT / W / 01 #### High school math Geometry through Precalculus. [Open the syllabus](/courses/complete-high-school-mathematics-mastery) TT / W / 02 #### AP Precalculus Unit 3 and the full exam. [Open the syllabus](/courses/ap-precalculus-exam-prep-course) TT / W / 03 #### ACT Math Includes trigonometry questions. [Open the syllabus](/courses/act-math-prep-course)III ### After trigonometry Grade 11 and up TT / A / 01 #### AP Calculus AB and BC Derivatives of sine and cosine. [Open the syllabus](/courses/ap-calculus-exam-prep) TT / A / 02 #### SAT Math The digital SAT math section. [Open the syllabus](/courses/sat-math-prep-course) TT / A / 03 #### College math Calculus and linear algebra. [Open the syllabus](/courses/college-mathematics-complete-masterclass) How lessons run ## Live trigonometry lessons that join the pictures up Weekdays or weekends, flexible: choose your batch, or for a very personalised plan choose 1-on-1 at your convenience, weekend mornings or weekdays. After school Lessons that track the current unit. Weekends Longer sessions before a test. 1-on-1 Paced to your course or AP timeline. ### Triangle, circle, graph Every topic shown in all three pictures. ### Exact before decimal Special values rebuilt, not looked up. ### Both calculator modes Degrees and radians checked every lesson. ### Your own work We teach the method; graded work stays yours. ### Exam aware AP and SAT formats when they apply. ### Batch or private A class of 15 to 20, or one to one. Student work ## What our students build Some students animate sine waves or draw polar roses in code. See them on [student labs](/student-labs). ![NutriLife AI nutrition coach project screenshot](/images/projects/nutrilife.webp) AI and ML #### NutriLife An AI nutrition coach that reads what you eat and works you toward a target. by Bhavya · [Open it](https://nutrilife-bhavya.lovable.app) ![Misti AI chatbot for maths and coding screenshot](/images/projects/misti.webp) AI and ML #### Misti A chatbot that answers mathematics and programming questions, built and deployed by a student. by Harshit · [Open it](https://misti.modernagecoders.com) ![GuardianX AI internet safety assistant screenshot](/images/projects/guardianx.webp) AI and ML #### GuardianX An assistant that helps a young person recognise unsafe situations online. by Vivaan · [Open it](https://guardianx-cybersaver.lovable.app) ![SkyCast weather forecast application screenshot](/images/projects/skycast.webp) Web app #### SkyCast A weather forecasting site with live conditions for any location. by Krish Fees ## Fees Trigonometry lessons are billed month by month with no long contract, so a student can add support for the unit circle unit and stop once it clicks. Free first class USD 0 no card required - A free first class - Bring a recent test or worksheet - No card needed Book it Group batch USD 100 a month, billed in US dollars - 15 to 20 students - One regular teacher - Choose a batch time - Monthly billing Start here One to one USD 150 a month, billed in US dollars - Private lessons - Matched to your course - Flexible scheduling Enquire What families say ## Rated 4.9 across 547 Google reviews Parents' Google reviews, word for word. ★★★★★ "The one step solution for my son. Modern Age Coders make learning coding so simple that kids love it. The teachers explain complex concepts clearly with practical exercises and interactive content." Ria Mukherjee Parent ★★★★★ "Modern Age Coders has been a game-changer for me. I struggled to grasp IT concepts and coding before joining, but their classes transformed everything. I can now confidently write complex programs with ease." Samriddha Mondal Student ★★★★★ "One of the most wonderful education centres out there. Education is not limited to school syllabus but focuses on skill development." Vansh Agarwal Student ★★★★★ "My child Dhairya is really enjoying the Modern Age Coders classes. This is his first online class and he eagerly looks forward to it. I can already see his improvement, and the teachers are very cooperative." Sonam Oswal Parent of Dhairya ★★★★★ "Modern Age Coders have wonderful teachers who teach in a clear, easy and practical way. The teacher boosts students' confidence and inspires them to learn without hesitation." Sonu Goyal Parent ★★★★★ "I highly recommend this computer coding class! The teachers are incredibly knowledgeable and passionate about coding." Ritu Kedia Parent Questions from students and parents ## Trigonometry tutoring: common questions ### Is there trigonometry tutoring near me? Our trigonometry tutoring is live online, so location does not matter. Students join by video from home and work with the same teacher each week, in a group of 15 to 20 or one to one. ### What grade is trigonometry taught in? Usually grade 10 for right-triangle trigonometry in Geometry, then grades 11 or 12 for trigonometric functions in Algebra 2 or Precalculus. Course order varies by district, and some states use their own standards. ### Is trigonometry hard? Right-triangle trigonometry is usually manageable. The unit circle, radians and graphs feel harder because the same idea appears in new forms, which is why we teach the triangle, the circle and the graph together. ### How do I memorize the unit circle? Learn the 30-60-90 and 45-45-90 triangles and the signs in each quadrant instead. With a reference angle, a triangle and a sign, any special value can be rebuilt in seconds, and nothing has to be memorized point by point. ### Is trigonometry on the AP Precalculus exam? Yes. Unit 3, Trigonometric and Polar Functions, makes up 30 to 35 percent of the multiple-choice section according to the College Board's Course and Exam Description, and one free-response question models a periodic context. AP Central lists the 2027 exam for May 11, 2027. ### Is trigonometry on the SAT? Yes, a small part. The College Board lists right triangles and trigonometry as one of four topics in the Geometry and Trigonometry domain of the SAT math section. ### Should my calculator be in degrees or radians? Whichever the question uses. If angles are written with a degree symbol use degrees; if they are written with pi or as plain real numbers use radians. Check the mode before every test. ### Can you help with my trigonometry homework? Yes. The teacher works through a similar problem with you and checks your reasoning, but you write your own homework and graded work. We never complete assignments for students. ### When are your trigonometry classes? Weekdays or weekends, flexible: choose your batch, or for a very personalised plan choose 1-on-1 at your convenience, weekend mornings or weekdays. ### Are you connected with the College Board or my school? No. Modern Age Coders is an independent online school, not affiliated with the College Board, the Common Core initiative, any state or any district. We quote their published documents and link to them. Elsewhere on this site ## Related math pages The courses around trigonometry. ### [Geometry tutoring](/geometry-tutoring-online-usa) Similarity and right triangles, where trig begins. ### [Algebra 2 tutoring](/algebra-2-tutoring-online) Functions, then the trig functions. ### [Precalculus tutoring](/precalculus-tutoring-online) Functions in depth, with trigonometry inside. ### [AP Calculus tutoring](/ap-calculus-tutoring-online) Where sine and cosine get derivatives. ### [SAT math tutoring](/sat-math-tutoring-online) The digital SAT math section. ### [ACT math tutoring](/act-math-tutoring-online) Timed math, trigonometry included. ### [Tenth grade math tutoring](/online-math-tutor-10th-grade) The Geometry year. ### [Eleventh grade math tutoring](/online-math-tutor-11th-grade) Algebra 2 and Precalculus. ## Related pages in this guide Part of the guide: [US math placement and college readiness tests](/us-math-placement-and-college-readiness-tests) ### High school math courses - [Integrated Math 1 tutoring](/integrated-math-1-tutoring) - [Integrated Math 2 tutoring](/integrated-math-2-tutoring) - [Integrated Math 3 tutoring](/integrated-math-3-tutoring) - [Statistics tutoring online](/statistics-tutoring-online) - [AP Precalculus tutoring online](/ap-precalculus-tutoring-online) ### School placement and growth tests - [MAP Growth math test prep](/map-growth-math-test-prep) - [i-Ready math help](/i-ready-math-help) - [Middle school math placement test prep](/middle-school-math-placement-test-prep) - [Accelerated math program online](/accelerated-math-program-online) ### PSAT and PreACT - [PSAT 8/9 and PSAT 10 math prep](/psat-8-9-math-prep) - [PSAT math prep](/psat-math-prep) - [PreACT math prep](/preact-math-prep) - [SAT math tutoring online](/sat-math-tutoring-online) - [ACT math tutoring online](/act-math-tutoring-online) ### College placement and credit - [ACCUPLACER math prep](/accuplacer-math-prep) - [ALEKS math placement test prep](/aleks-math-placement-test-prep) - [TSIA2 math prep](/tsia2-math-prep) - [CLEP College Algebra prep](/clep-college-algebra-prep) - [CLEP Calculus prep](/clep-calculus-prep) - [Dual enrollment math help](/dual-enrollment-math-help) More guides: [US state math tests by state](/us-state-math-tests-by-state) · [US gifted and selective school tests](/us-gifted-and-selective-school-tests-guide) · [Homeschool and school math curricula guide](/homeschool-math-curriculum-guide-usa) · [US math and coding competitions guide](/us-math-and-coding-competitions-guide) Start here ## Book a free first trigonometry class Tell us the course and unit, and share a recent quiz if you have one. The teacher will place the student on our four levels and work through a fresh problem from the current unit. Read about [how our lessons work](/how-we-teach), or look through our [full course list](/courses). [WhatsApp us](https://wa.me/919123366161?text=Hello%20Modern%20Age%20Coders%2C%20my%20high%20schooler%20in%20the%20US%20needs%20help%20with%20trigonometry.%20Could%20we%20book%20a%20free%20first%20class%3F) · [+91 91233 66161](tel:+919123366161) · [connect@modernagecoders.com](mailto:connect@modernagecoders.com) Teachers join live by video from India, with lesson times set around US time zones and the school day. WhatsApp is the quickest way to arrange one. ### Want a class sooner? Book a priority demo A priority demo is a full class of about 45 to 60 minutes. After the class the mentor sends a written skill report and a personal learning roadmap on WhatsApp. If you enrol, the demo fee is adjusted against your first month's fee. Share your demo Order ID with us on WhatsApp and we take it off. [Book a priority demo](/book-demo) ## Keep exploring Modern Age Coders ### More maths tuition - [Transfer Test Maths Tuition Belfast](/transfer-test-maths-tuition-belfast) - [VCE Foundation Maths Help](/vce-foundation-maths-help) - [Teaching Textbooks Math Help: When Your Child Needs a Tutor](/teaching-textbooks-math-help) - [VCE General Maths Tutoring](/vce-general-maths-tutoring) - [TASC Mathematics Methods Tutoring](/tasc-mathematics-methods-tutoring) - [VCE Maths Methods Tutoring](/vce-maths-methods-tutoring) - [HSC Maths Extension 1 Tutoring](/hsc-maths-extension-1-tutoring) - [Math Tutor Montreal](/math-tutor-montreal) - [Alberta Math 30-1 Diploma Exam 2027: Dates, Marking, Prep](/alberta-math-30-1-diploma-exam-prep) ### Learn more - [Cuemath Alternative for 2026: A Live Coding and Maths School](/cuemath-alternative) - [Middle School Math Competitions: MATHCOUNTS](/courses/middle-school-math-competitions-course) - [Russian School of Mathematics Alternative: Compare and Choose](/russian-school-of-mathematics-alternative) - [Coding & Maths Classes for School Students](/schools) ### From the blog - [Maths Learning Guides](/blog/topic/maths) - [SOH CAH TOA: Trigonometry for Beginners with Examples](/blog/sohcahtoa-trigonometry-for-beginners) - [Common Myths About Coding for School Students](/blog/common-myths-about-coding-for-school-students) - [Top 10 Java Programs Every School Student Should Know (With Solutions)](/blog/top-10-java-programs-for-school-students) ### Start here - [Browse every live course at Modern Age Coders](/courses) - [Try a free trial class with a Modern Age Coders mentor](/free-trial) Free class[Priority demo](/book-demo)[Call us](tel:+919123366161) --- *Canonical: https://learn.modernagecoders.com/trigonometry-tutoring-online*