Teachers and tutors
Send the homework sheet home with a solution video for every question, so nobody is stuck on question three at nine at night.
Skills Maths problems
Maths problems, solved step by step on a teacher’s board.
Type the problems or drop a photo or PDF of the sheet, and Chasca makes a video that solves each one the way a teacher would at the board: the question stays in view, every line of working is written as it is said, a pointer follows along and the answer is boxed. Every answer is checked before it is drawn, and the narration explains it the way teachers of your language do.
- 16:9, widescreen
- 1 minute to 30 minutes
- Teachers, tutors and test-prep channels
At a glance
What you get.
- Format
- 16:9, widescreen
- Length
- 1 minute to 30 minutes
- Starts from
- Typed problems, or photos, a PDF or a document of the question sheet (up to 20 pages)
- Languages
- All 79 languages; Arabic written right to left
- Look
- A black board or a whiteboard, the working written line by line, a pointer and a boxed answer
- Narration
- Any of the 30 narrators or your own voice, with captions
- Price
- Uses your plan’s minutes like any video, from $9.99 a month for 30 minutes. Your first 2 videos are free, up to a minute each.
Who it’s for
Made for people who explain maths.
Coaching and test prep
Turn a question bank for entrance and aptitude exams into worked solutions, options read out and the right one marked.
Maths channels
Publish a solution a day in the board style students already watch, in their language, without filming yourself.
How it works
From a question sheet to a solution video.
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1Bring the problems
Type or paste them, with the options and your answer key if you have them, or add photos or a PDF of the sheet.
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2Each one is checked
Every problem is solved, then solved again on its own. If the two answers disagree, the video’s page says so.
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3Worked on a teacher’s board
The question stays in view while each line is written as it is said, a pointer follows along, and the answer is boxed.
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4Explained like a teacher there
Narration in your language, worded the way teachers there explain, in your pick of voice, with captions.
Examples
Videos made with this skill.
A train’s average speed, then a triangle’s area
Two problems on a teacher’s board: the options in a row, every line of working written as it is said, each answer checked before it is drawn.
PromptSolve these two for my class. 1) A train travels 180 km in 2 hours 15 minutes. What is its average speed in km/h? (A) 72 (B) 80 (C) 90 (D) 85. 2) Find the area of a triangle with sides 13 cm, 14 cm and 15 cm.
Made from a promptMaths problemsEnglish
क्रय मूल्य कैसे निकालें?
A profit and loss question solved in Hindi, the way teachers there say it, for competitive exam practice.
Promptएक दुकानदार 20% लाभ पर एक वस्तु ₹600 में बेचता है। उसका क्रय मूल्य क्या है?
Made from a promptMaths problemsHindi
Solving 3x + 7 = 2x − 5
A linear equation on the board: the unknown gathered on one side, the answer found, then both sides checked with it.
PromptSolve for x: 3x + 7 = 2x − 5
Made from a promptMaths problemsEnglish
Differentiating x³ sin x with the product rule
The rule said first, each factor differentiated on its own line, then the two put together into the final answer.
PromptDifferentiate y = x³ sin x.
Made from a promptMaths problemsEnglish
سؤال قدرات: قيمة تعبير جبري
An Arabic aptitude test question, written right to left: x found first, then the value of the expression, then a check in the given equation.
Promptإذا كان ٣س = ١٢ فما قيمة ٢س + ١؟ أ) ٧ ب) ٨ ج) ٩ د) ١٠
Made from a promptMaths problemsArabic
Interés compuesto: 5.000 € al 8 % durante dos años
Compound interest in Spanish: the money grown year by year, then checked by working back to the €5,000 invested.
PromptSe invierten 5.000 € al 8 % de interés compuesto anual. ¿Cuánto dinero hay después de 2 años?
Made from a promptMaths problemsSpanish
What it won’t do
- Guess an answer it cannot check: it tells you which question to look at instead.
- Skip the steps a student needs to follow the working.
- Film you or put an avatar on screen: the board is the whole picture.
Why we built it
Most students who get stuck on homework are stuck on one step, at a time when nobody is there to show it. Teachers know a worked example fixes that, but filming a solution for every question on every sheet takes hours. We built the maths skill so the solution video can exist for every question, in every language a class is taught in.
Read why we built itYes. Chasca’s Maths problems skill makes a narrated video that solves each problem on a teacher’s board: the question stays in view, every line of working is written as it is said, a pointer follows along and the answer is boxed. You type the problems or upload a photo or PDF of the sheet.
Yes. Add photos, a PDF or a document of the question sheet, up to 20 pages, and the skill reads the questions from it. You can also type or paste them, with the options and your answer key.
Every problem is solved twice, the second time on its own, before the video is made. If you give an answer key, the answers are checked against it too. When they disagree, the video’s page tells you which question to look at before you share it.
Yes. Each option appears on the board as it is read, and the right one is marked once the working reaches it.
All 79 languages Chasca narrates in. The narration reads the maths the way teachers of that language do, and in Arabic, equations in Arabic-Indic digits run right to left.
From one minute to 30 minutes on a paid plan; the free videos are up to a minute. A video follows its questions: several problems make a longer video, each on its own board.
Your first 2 videos are free, up to 1 minute each, watermarked. No card required. A skill works on the free videos too, up to a minute. After that, plans start at $9.99 a month for 30 minutes. See pricing.
More skills
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Science problems
Physics, chemistry and genetics problems, units on every line and the diagram drawn beside.
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Verbal questions
Analogies, completions and odd words out, solved on a teacher’s board with every wrong option ruled out.
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Economics problems
Supply and demand, elasticity and costs, solved on exact graphs with every shift drawn.
Your next explainer takes under a minute.
Your first 2 videos are free, up to 1 minute each, watermarked. No card required. Full product, every voice and style included.