I encourage a simple pallet of 5 colours: Titanium White, Ultramarine Blue, Alizarin Crimson, Yellow Oxide (or Cadmium Yellow Medium) and Burnt Sienna.
Brushes: Be sure your brushes are made for acrylic paint. An assortment of synthetic bristle including a small round, a medium filbert, and a larger flat would be minimum. Example set Princeton Brush Set 9147 4-Pc Lh White Taklon.
Canvas: Can be simple canvas panels and/or or stretched canvas. Minimum 9×12.
Pencil and Eraser.
Available at Arts Building or bring your own: Palette (can be disposable artist palette, or simple white plastic dish/lid), rag and water dish.