The word meal means any time when you eat a large amount of food. There are typically 3 meals per day - breakfast (in the morning), lunch (mid-day), and dinner (at night). A snack is a smaller amount of food (for example, a bag of chips or a piece of fruit) and you can eat a snack anytime.
In American English, dinner and supper are the same - both are used to describe the evening meal. However, in some cultures, the word supper is used for a light meal served in early evening, and dinner may be later in the night.
Successful teachers expect their students to succeed
This concept is similar for parents as well. Students need someone to believe in them. They need a wiser and older person to put stock in their abilities. Set the bar high and then create an environment where its okay to fail. This will motivate your students to keep trying until they reach the expectation youve set for them.