Supply List Recommendations:

Paint
Alizarin red or permanent rose (or permanent rose madder).
Cad red
Transparent Red Oxide (this is a beautiful transparent low saturation orange but If you prefer, you can use burn sienna)
Cad orange
Indian yellow
Yellow ochre
Cad yellow or lemon yellow
Ultramarine Blue 
Cobalt Blue
Phthalo green (I mix this with indian yellow for one green and lemon yellow for a second green)
Titanium white

not every color is necessary as long as you have a warm and a cool of each of the primary colors, red, blue and yellow.

Surfaces/Panels
For short studies and even longer (multiple session) studies I like to use a good quality canvas board.  Sizes can be anywhere between 8" x 10" and 12" x 16" or square shapes. I like Centurion Oil primed linen canvas board. I like MDF boards for painting too. Bring at least 2 surfaces to paint on for every class, no matter what the size you choose.

Palette
This can be glass (my preference)  or wood.  It also should have plenty of room for mixing and you should have something that scrapes it clean. 

Brushes
I use brushes from Rosemary & Co .
Bring an assortment of sizes from small to large. An extra large or chip brush from the hardware store for toning can
Recommended types: 
#2025 Chungking flat and long flat sizes 7 - 12 (these are bristle brushes)

Eclipse Long Filberts

Eclipse long (0r extra long) combers 1/4" or 1/2"
Ivory Daggers
Sable brushes

Evergreen pointed rounds size 0, size 2.0 (for extra small marks)

All of these are not necessary, but bring 8 or more brushes and bring what you have, try to have several brushes that are at least 1/2" wide and wider.  Bring large size Bristle brushes.

Palette Knife
1 1/2" in size or larger.  This must be flexible and good enough to pick up and mx substantial amount of paint

Medium/Solvent
Gamsol Mineral Spirits - for thin washes
Walnut oil - I rarely use it for my short studies and use it sparingly for long studies.

Paper towels.