How long does this math lesson take?

This lesson takes approximately 14 minutes to complete. It includes 25 interactive questions with immediate feedback.

Yes! This lesson is completely free to access. No account or payment required. Just click "Start Lesson" to begin learning.

Can I use this lesson with my students?

Absolutely! Teachers can share this lesson with students using the share button. You can also create a live session to track student progress in real-time.

LessonMathematicsBeginner

The Line on the Floor — How do you split something fairly? (I cut, you choose)

The fairest way to split something between two people is for one of them to divide it and the other to pick first, because then whoever holds the knife has to make both halves equal or lose. Try to cheat your little sister out of half a bedroom, find out why you cannot, discover the strange part where you BOTH end up with more than half, and then build the rule yourself for the things that will not cut in half at all.

14 min25 questionsGrades 4, 5, 6

VCreated byViafocus

Start lesson