Ask a Biologist
The Many Faces of Ants
Though they be but little, they are fierce! Young biologists read about eight different species of ants, and discover how the anatomy of their heads can explain the way they live and what they eat.
Mathigon
Mathigon: Graphs and Networks: The Travelling Salesman Problem
This lesson focuses on the traveling salesman problem which involves finding paths through a city without backtracking. While no algorithm has been found to do that for all cities, there are algorithms that help somewhat. They are...