The maths app for primary school
Practise primary-school maths through play: explore numbers, train mental arithmetic, understand mathematical terms and create your own worksheets — step by step with the weasel.
For Android tablets in landscape mode · In German
Learning maths in grades 1, 2, 3 and 4
A maths app for primary-school children — with hands-on exercises, reference material and printable maths worksheets.
Hands-on maths
Mental arithmetic and mini-games bring numbers, operations and measurements to life. Tasks match the selected grade.
Knowledge that stays with you
The weasel’s maths quiz explains mathematical terms with tasks and memorable rules. Your child can look everything up in the glossary at their own pace.
Your own worksheets
Parents and teachers can put together suitable tasks, save templates and create PDFs with separate answer sheets.
- Numbers
- Addition & subtraction
- Multiplication & fractions
- Quantities & measurements
- Geometry
- Data & puzzles
Grade 1 maths
Get to know numbers and quantities, solve your first addition and subtraction problems and explore shapes, money and whole hours.
Grade 2 maths
Expand the number range, calculate more confidently, prepare for multiplication tables and apply measurements to everyday tasks.
Grade 3 maths
Calculate up to 1,000, strengthen multiplication skills, work on word problems and practise fractions, lengths and weights.
Grade 4 maths
Build on large numbers, written calculation methods, more challenging word problems, geometry, data and measurements.
A look inside the app
Every learning step opens new doors
In the playground, your child discovers tasks involving numbers, time, money, shapes and more. The areas build on one another and unlock gradually.
Skills matter, not waiting: At least 90% correct answers in a fully completed practice round unlock the next station. Unlocked areas remain available — without waiting periods.
In the maths quiz, a new technical term becomes an easy-to-understand rule. Personal profiles, achievements and statistics make learning progress visible.
For home and the classroom
Create maths worksheets for primary school
Sometimes pen and paper work best. Use the worksheet editor to create maths worksheets for grades 1 to 4 and adjust the number range, number of tasks and layout.
Save your own templates for the next practice session or put together a new sheet. Tasks and answers can be exported as separate PDFs and printed using Android’s printing function.
Good to know
Which grades is WieselWissen designed for?
The maths app is designed for children in grades 1, 2, 3 and 4. The selected grade determines the suitable games, calculation tasks and topics.
Which devices can run the app?
WieselWissen is designed for Android tablets in landscape mode. The interface and learning content are currently in German.
How are new areas unlocked?
The learning areas build on one another. A fully completed practice round with at least 90% correct answers unlocks the next station. The relevant foundations must be completed for further areas. There are no waiting periods; areas already unlocked remain available.
Can I reuse worksheets?
Yes. You can save your own templates, open them again and delete them when needed. Task sheets and answers can be exported separately as PDFs.
Which maths worksheets can I create?
You can put together primary-school worksheets for topics including addition, subtraction, multiplication, division and word problems. The number range, number of tasks and layout can be adapted to the grade.
Maths begins with curiosity.
Explore a world of numbers, little challenges and new discoveries with the weasel.