Class 11 Mathematics · Learn visually
Maths.
From abstract
to aha.
See the idea. Change a quantity. Discover why it works — with interactive lessons, real-life examples and worked solutions across all 14 chapters.
Maths Concept Lab See it. Explore it. Understand it.
- chapters
- 14
- chapters
- topics
- 169
- topics
- real-life applications
- 155
- real-life applications
- worked questions
- 1,108
- worked questions
A small experiment. A big idea.
Give the formula
a little motion.
What does a sine function actually do? Change the angle and see how a familiar ride becomes a mathematical idea.
1 Move the orange slider to change the angle.
2 Watch the teal height update as the cabin moves.
3 Connect what you see to the calculation.
Try it right here — no sign-in needed.
Chapter 3 · Application
Live resultHow high is the cabin?
A wheel has radius 10 m and its centre is 12 m above the ground. Turn the cabin and watch its height.
The cabin is above the centre, so the offset is added. It always stays between 2 m and 22 m.
How a lesson works
One idea at a time
Every topic follows the same calm route: see it, change it, explain it, use it — then try it yourself.
- 1
Choose a chapter and topic
The chapter menu lays out the lesson sequence. You start with one idea, not a page full of formulas.
- 2
Look and explore
A labelled diagram shows the mathematical objects. Move a slider or pick a preset and watch the result respond.
- 3
Read the explanation
Each step names what changed and why the next calculation follows, with powers and fractions properly typeset.
- 4
Connect to an application
A practical situation — a Ferris wheel, a school budget, a delivery route — gives you a reason to use the idea.
- 5
Follow worked examples
The question, diagram, numbered calculations, reasons and answer sit together, so you never lose the thread.
- 6
Practise on your own
After a worked example, try a similar question on paper. Explaining it yourself is how the method sticks.
Read the colours
- BlueYour next step — Next idea, Next example, Continue.
- TealA live result that updates as you explore.
- OrangeThe quantity you are changing right now.
Chapters 1 to 14
The whole Class 11 course
Built around the 14 chapters of the NCERT Class 11 mathematics textbook. Each chapter pairs its lessons with practical applications and a bank of worked questions.
Chapter 1
Sets
Try: Assemble a geometry stationery kit
10 topics · 10 applications · 82 worked questions
Chapter 2
Relations and Functions
Try: Find a cinema seat
19 topics · 19 applications · 86 worked questions
Chapter 3
Trigonometric Functions
Try: How high is the cabin?
31 topics · 17 applications · 140 worked questions
Chapter 4
Complex Numbers and Quadratic Equations
Try: A floor robot combines two moves
8 topics · 8 applications · 49 worked questions
Chapter 5
Linear Inequalities
Try: A school-trip budget
7 topics · 7 applications · 59 worked questions
Chapter 6
Permutations and Combinations
Try: Run a school café
9 topics · 9 applications · 80 worked questions
Chapter 7
Binomial Theorem
Try: Pack a labelled gift box
8 topics · 8 applications · 30 worked questions
Chapter 8
Sequences and Series
Try: Plan weekly savings envelopes
10 topics · 10 applications · 92 worked questions
Chapter 9
Straight Lines
Try: Keep a fence through its survey peg
12 topics · 12 applications · 112 worked questions
Chapter 10
Conic Sections
Try: Size the cross-section of a parabolic dish
12 topics · 12 applications · 104 worked questions
Chapter 11
Introduction to Three Dimensional Geometry
Try: Can the cable reach the sensor?
8 topics · 8 applications · 32 worked questions
Chapter 12
Limits and Derivatives
Try: A moving car and its speed
15 topics · 15 applications · 138 worked questions
Chapter 13
Statistics
Try: How many books fit a loan policy?
10 topics · 10 applications · 50 worked questions
Chapter 14
Probability
Try: Give every delivery zone exactly one route
10 topics · 10 applications · 54 worked questions
Step-by-step solutions
Follow the solution
Every worked question shows the reason beside each calculation, so you learn the method — not just the answer.
Chapter 1 · Sets
Equal sets after solving
Find the equal sets:
A = {0}
B = {x : x > 15 and x < 5}
C = {x : x − 5 = 0}
D = {x : x² = 25}
E = positive integer roots of x² − 2x − 15 = 0
1. List the set already given
A = {0}
A is already written as a list: it contains the single number 0.
2. Check both conditions for B
x > 15 and x < 5 has no solution
B = ∅
A member would have to be greater than 15 and smaller than 5 at the same time.
3. Solve the condition for C
x − 5 = 0 ⇒ x = 5
C = {5}
Add 5 to both sides; this leaves x by itself.
4. Keep both square roots for D
5² = 25 and (−5)² = 25
D = {−5, 5}
A square equation can have two solutions, even though √25 means the positive root.
5. Factorise for E, then apply “positive”
x² − 2x − 15 = (x − 5)(x + 3)
x = 5 or x = −3 ⇒ E = {5}
−5 and 3 multiply to −15 and add to −2. The question keeps only positive integer roots.
6. Compare members, not counts
A = {0}, B = ∅, C = {5}, D = {−5, 5}, E = {5}
Equal sets contain exactly the same members.
Answer
C = E = {5}; no other pair is equal.
Keep the learning going
Simple pricing
Parents and students get every chapter with a plan. Schools get a tailored setup — just reach out.
Custom plans for your school
Bulk licences, student management and onboarding support for Class 11 classrooms. Let's find the right fit — no fixed pricing.
Who it's for
Made for the way you learn
Designed first for Class 11 students — including anyone who wants more time, concrete examples or extra algebraic steps.
Class 11 students
Work through every NCERT chapter with a picture first, then the algebra, then the exam-style question.
Learners who need more time
Small steps, concrete examples and extra algebraic working — read at your own pace and revisit any step.
Teachers and schools
Use the diagrams in class, assign topics, and manage student access and licences in one place.
Maths Concept Lab