Photograph one problem. Practise ten more like it.
Lexie reads a math problem from your textbook, worksheet, or handwritten notes and generates novel practice problems based on the same concept. Different numbers, same method. The only way to learn maths is to do maths.
How math mode works
Photograph a problem
Take a photo of a worked example, a textbook problem, or something from your worksheet. Lexie identifies the mathematical concept, the method, and the level of difficulty.
Get novel problems, not copies
Lexie doesn't repeat the same problem with different numbers pasted in. It generates genuinely new problems that require the same mathematical reasoning but with different values, different contexts, and different entry points. If you can solve these, you understand the method — not just the specific example you saw.
Quick-fire drills
For building speed and fluency. A stream of problems at a consistent difficulty level. Solve, check, next. Designed for younger students or for practising fundamentals where speed matters — arithmetic, basic algebra, unit conversions.
Guided solving
For deeper understanding. Lexie walks you through the problem step by step using a Socratic approach. Instead of showing you the solution, it asks questions that guide you toward the next step. If you get stuck, the hints get more specific. You arrive at the answer through your own reasoning.
Photograph your solution
Handwritten answers accepted
You don't need to type mathematical notation. Solve the problem on paper and photograph your handwritten work. Lexie reads your solution and evaluates whether your method and answer are correct. This removes the biggest friction point in digital maths practice — nobody wants to wrestle with equation editors when they're trying to learn.
Why novel problems matter
Pattern matching is not understanding
Students often think they understand a concept because they can follow a worked example. Then the exam changes one variable and they're lost. Practising with novel problems that vary the surface features while preserving the underlying method is how you build genuine mathematical fluency.
Repetition with variation
Cognitive science distinguishes between blocked practice (doing the same type of problem repeatedly) and interleaved practice (mixing problem types). Lexie's math mode gives you controlled variation within a concept — enough repetition to build the method, enough variation to prevent mechanical pattern matching.
Your textbook has five problems. You need fifty.
Most textbooks provide a handful of practice problems per concept. If you get them all right, you move on without knowing whether you truly understood or just got lucky. If you get them wrong, you've exhausted your practice material. Lexie generates as many problems as you need from a single seed example.
Works across maths
Arithmetic
Generate drill problems for multiplication, division, fractions, decimals, and percentages at any level of difficulty.
Algebra
Photograph a linear equation, quadratic, or system of equations and get novel problems that test the same solving method with different coefficients and constants.
Geometry
Area, volume, angles, proofs. Photograph a problem involving a specific shape or theorem and get variations that test the same geometric reasoning.
Word problems
Lexie generates new word problems that require the same mathematical setup as your seed problem but with different scenarios and values.
Frequently asked questions
You don't learn maths by watching someone else solve problems
Photograph a problem, get novel practice, solve it yourself. Quick-fire drills for fluency, guided solving for understanding. 3 free study sets. No account required.