The Viafocus library

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The secrets of numbers

7 totalClear filters

Tio i taget: varför byter vi vid tio?

11 questions · 6 min

VViafocus

Beginner

MathematicsGrades 3, 4, 5

Under noll: vad är negativa tal?

10 questions · 6 min

VViafocus

Beginner

MathematicsGrades 4, 5

Klossarnas hemlighet: vad är primtal?

11 questions · 6 min

VViafocus

Beginner

MathematicsGrades 3, 4, 5

En tredjedels pizza: vad är bråk?

11 questions · 6 min

VViafocus

Beginner

MathematicsGrades 3, 4, 5

Talens hemligheter: hur bra koll har du på tiotal, minustal, primtal och bråk?

24 questions · 8 min

VViafocus

Beginner

MathematicsGrades 3, 4, 5

Utgångsbiljetten för talens hemligheter: vad kan du nu om tior, minustal, primtal och bråk?

13 questions · 3 min

VViafocus

Beginner

MathematicsGrades 3, 4, 5

Talens hemligheter, steg för steg: hur övar man på tior, minustal, primtal och bråk?

35 questions · 25 min

VViafocus

Showing 7 of 7

Interactive lessons for every classroom

Every lesson on Viafocus is interactive: students answer as they go and get immediate feedback, while teachers see live results. Lessons are created by teachers across Sweden and by the Viafocus studio — official lessons carry a blue verified mark.

Frequently asked

Are Viafocus lessons free?

Yes — every lesson in the library is free to play in the browser, with no account required. A free account lets you save lessons and see results.

Can I run a lesson live with my class?

Yes. Start a live session from any lesson — students join with a code on their own devices, and their answers land on your dashboard in real time.

Who creates the lessons?

Teachers in the community and the Viafocus studio team. Lessons built by the Viafocus studio carry a blue verified mark next to the byline.

Can I use a lesson someone else made?

Yes. Any published lesson can be played, shared with a class, or copied into your own library so you can adapt it before teaching it.