Introduction to Topology by Bert Mendelson, 3rd Edition.
Chapter 2 Metric Spaces
Metric spaces
Continuity
Open balls and neighborhoods
Limits
Open sets and closed sets
Subspaces and equivalence of metric spaces
Chapter 3 Topological Spaces
Topological spaces
Neighborhoods and neighborhood spaces
Closure, interior, boundary
Functions, continuity, homeomorphism
Subspaces
Products
Chapter 4 Connectedness
Connectedness
Connectedness on the real line
Path-connected topological spaces
Chapter 5 Compactness
Compact topological spaces
Compact subsets of the real line
Products of compact spaces
Space-filling curves
Each student chose a topic and gave a 20-minute presentation followed by a 5-minute Q&A session. Here were the topics:
Fixed-point Theorems
Graph embedded on surfaces
Introduction to knot theory and applications
Introduction to homotopy groups
Path-connected spaces
Persistent homology and applications
Prime decomposition of knots
Topological quantum numbers