Acrylic Paint: Buy quality--"Artist" grade. Avoid "Hue" e. g. Cadmium Yellow Light Hue. Fillers in "Hues" kill vibrancy when mixing. Winsor-Newton, Grumbacher, Liquitex, Brera, et. al. make quality paints. Buy 60ml or larger tubes. One (1) tube each except Titanium White--three (3) tubes. Do not waste money on other colors.
Titanium White
Cadmium Yellow Light
Cadmium Orange--optional color but suggested
Cadmium Red Light
Alizarin Crimson
Phthalo Green
Ultramarine Blue
Phthalo Blue
Ivory Black--optional color but suggested
Brushes: Buy quality--hogs hair bristle or synthetics for acrylic (and oil) painting. Use big brushes with long handles. "Brights" sizes 6 & 8 and "Rounds" sizes 6 & 8. Four brushes--plenty. Brushes are sometimes rated "good," "better," "best." Use "better" or "best" less you end up with a lifeless brush, bristles falling out, or handle separating from ferrule. Note: No watercolor brushes--sable or synthetic sable.
Canvas: Canvas pad or roll of canvas (acrylic-primed only). Fredrix's 10-sheet pad "It's the Real Thing" is fine—need one (1) 16 x 20 pad. Other companies make a similar pad. Or, inexpensive roll of acrylic-primed canvas (cut into 16 x 20 pieces) works well. Cut and roll it up. No need for expensive linen, stretched canvas, etc.--you'll be learning and painting studies (not pretty postcards). Tape (masking or painter's tape works best) canvas to a piece of sturdy cardboard, gatorboard, or foam-cor on which to paint. Cut painting support an inch or so larger (17 x 21) than canvas. Cut in half for travel. Tape together on location.
Palette: "Keyboard" for squeezing out paint and mixing. Use 1/4 inch gatorboard/foam-cor cut to 16 x 20 inches—lightweight and can be used over and over; both sides. Cut thumb hole 4 inches in and 3 inches up from bottom right corner. Cut in half for travel. Tape together on location. Suitable for framing at week's end!
Easel: Lightweight, portable with telescoping-legs model for ease painting -- ~$25.00 or so.
Miscellaneous: Spray/mister water bottle; sealable water jar (at least quart-size plastic mayo/mustard jar w/ lid); roll of paper towels; trash bag; and latex-free disposable gloves are handy to preclude paint on hands. A large tote or roller type bag for ease carrying materials.
Positive Attitude and Perseverance: Required.
Materials cost: ~$125.00; maybe less. Visit local art supply or online stores: www.jerrysartarama.com; www.dickblick.com; www.aswexpress.com; et. al. Watch for sales!

Workshop Painting Materials
"About to be in Hot Water" 20 x 24 acrylic on canvas
Phthalo Blue; Ultramarine Blue; Phthalo Green; Alizarin Crimson; Cadmium Red Light; Cadmium Yellow Light; Titanium White.
"All colors are the friends of neighbors and the lovers of their opposites."
"Every child is an artist. The problem is how to remain an artist once we grow up."
My basic palette--of paint for capturing color