In 5th grade today, we went over observational drawing. I have 9 tips for observational drawing and they go like this. 1. Look closely at what you are drawing. 2. Draw from real objects. 3. Beware of elipicals. 4. Draw lightly and sketch our proportions first. 5. Add a range of value. 6. Learn depth of space, what goes in front what goes behind, where does the table line go. 7. Know when to add or omit details. 8. Never trace. 9. Be creative, add your own soul.
I have picked up various fake fruits at garage sales. This way they always stay fresh and never go bad and I always have them on hand when needed.