Geometry · Proofs · One-on-one
Online geometry tutor for proofs and everything around them.
Geometry is the first math course that asks students to explain, in writing, why something must be true. As a private online geometry tutor, Rijul guides high school students through Geometry and Honors Geometry one-on-one, teaching them to read what a figure is telling them and to write proofs that hold up.
Taught by Rijul, a UC Berkeley Regents’ Scholar
Dual degree in Data Science and Business Administration
Teaches middle school math through AP Calculus, SAT and ACT
Who it’s for
For students who see the answer but can’t yet say why.
Geometry asks for a different kind of thinking from algebra, and it trips students up in its own places:
Proofs
Seeing that two triangles are congruent is one thing; writing the chain of reasons, in order, is another. Most students need to be shown how to plan a proof before writing it.
Exact language
Definitions, postulates and theorems each mean something precise. Mixing them up costs points even when the reasoning behind an answer is sound.
Seeing the figure
Many problems turn on a line that hasn’t been drawn yet, or a triangle hidden inside another. Spotting them is a habit built through guided practice.
Algebra inside geometry
Angle relationships and similar triangles become equations to solve. Students with shaky Algebra 1 lose points on problems they understood.
Trigonometry and solids
Sine, cosine and tangent arrive in the second half of the year, along with surface area and volume of solids that are hard to picture on a flat page.
What we cover
The full course, from reasoning to volume.
Reasoning and foundations
Points, lines and planes, conditional statements, and inductive and deductive reasoning.
Angles and parallel lines
Angle pairs, transversals, and proving that lines are parallel.
Transformations
Translations, reflections, rotations and dilations, and congruence and similarity defined through them.
Congruent triangles
SSS, SAS, ASA, AAS and HL, and using corresponding parts once congruence is proved.
Similarity
AA similarity, proportions in triangles, and the triangle proportionality theorem.
Right triangles and trigonometry
The Pythagorean theorem and its converse, special right triangles, and sine, cosine and tangent.
Polygons and quadrilaterals
Properties of parallelograms, rectangles, rhombuses and trapezoids, and proofs on the coordinate plane.
Circles
Arcs, chords, tangents and inscribed angles, and the equation of a circle.
Area, surface area and volume
Polygons, prisms, cylinders, pyramids, cones and spheres.
Geometry usually sits between Algebra 1 and Algebra 2, and its right-triangle trigonometry returns in both. Geometry and trigonometry are also about 15 percent of SAT Math.
How it works
Proof by proof, unit by unit.
Sessions are available on weekdays after school, until 8 p.m. Eastern Time, and on weekends.
- 01
A free consultation
We go through recent tests and homework to see where points are going: proofs, calculations, or the algebra underneath.
- 02
A diagnostic
A short set covering the algebra geometry depends on and the unit in progress, plus one proof, to see how your student reasons on paper.
- 03
A written plan
Organized around the school’s units, with regular time set aside for writing proofs until it becomes routine.
- 04
One-on-one sessions
Figures drawn and marked up together on the whiteboard, the reasoning talked through aloud, then written out step by step.
- 05
Updates for parents
Notes on each unit, sent regularly, and on how proof-writing is coming along.
Your tutor
Your geometry tutor: Rijul.
Geometry students work one-on-one with Rijul, Vidansa Education’s founder. His UC Berkeley dual degree combines Data Science and Business Administration, and he was one of the university’s Regents’ Scholars.
He took analytical roles at Houlihan Lokey and Summit Partners during summers at Berkeley, and has since worked at a leading North American educational consulting firm. Every proof he teaches is reasoned through at the board before your student writes one alone.
Testimonials
What families say.
“My two kids, now 7th and 5th grades, have been working with Rijul for 2.5 years, and both started well behind grade level. Both my kids wrapped up the previous school year top of their classes. My son was invited to compete in a global math competition as a representative of the school for this current school term. Math has become their favorite subject, they look forward to new concepts and challenges, and tackle them with true confidence.
Read the full note
“Rijul not only teaches them math, but also instills a genuine curiosity and joy for learning. My kids love their tutoring sessions, and actively ask for extra time with Rijul if they have an exam to prep for.
“Rijul truly cares about his students. We started working together in CA, then relocated to Hong Kong. Despite the time difference, Rijul has made sure my kids do not skip a beat in math. My son also often praises that Rijul teaches in ways he can actually understand.
“We are so deeply grateful for all the work Rijul has done.”
TS · Parent of 5th and 7th graders, Hong Kong “Rijul has been an incredible math and science tutor for my daughter. Beyond helping her strengthen her understanding of the subjects, he has helped her become more diligent, confident, and accountable as a student. What really sets Rijul apart is how invested he is in her success — he checks in regularly, follows up on her progress, and genuinely cares about her outcomes. We have seen a meaningful difference in both her confidence and her approach to school since working with him.”
CG · Parent of a 10th grader, Palo Alto, CA
Questions
Geometry tutoring questions.
How much does a geometry tutor cost?
Geometry sessions are $150 per hour, one-on-one, and the first consultation call costs nothing.
Can you help my student with proofs?
Yes. Sessions turn proof-writing into a routine: read what’s given, mark the figure, plan the chain of reasons, then write it out.
Do you teach Honors Geometry?
Yes. Honors courses go deeper into proof and move faster, and sessions are planned around that pace. Constructions and probability are covered too where the course includes them.
How do you teach geometry online?
Over Zoom, on a shared whiteboard where figures are drawn, labeled and marked up together, just as they would be on paper.
When are sessions held?
Weekdays after school, until 8 p.m. Eastern Time, and weekends. On Pacific time, a 4 p.m. start after school is 7 p.m. Eastern.
How do we get started?
Request a consultation through the form below, mentioning the course and your student’s grade. A reply from Rijul follows within 2 hours during the day (Eastern Time).
Free consultation
Book a free geometry consultation.
Share the course, your student’s grade and whether proofs or problems are the bigger worry.
Prefer email?
rijul@vidansaeducation.com