How long does this science lesson take?

This lesson takes approximately 10 minutes to complete. It includes 13 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.

LektionNaturvetenskapNybörjare

The Lunch Rush — What is a bottleneck, and why does one slow spot hold up the whole queue?

A bottleneck is the slowest step in a line, and it sets the speed of everything: make any other step faster and nothing changes at all. In this lesson you run a school canteen at lunch with one helper and a clock — find the counter with the pile of children in front of it, and two hundred kids finally sit down in time. Then find the same slow spot in a morning at home, and on a road with one lane closed.

10 min13 frågorÅrskurs 4, 5, 6

VSkapad avViafocus

Starta lektionen