How to be an effective room parent
Meet with the teacher.
Before the school year starts, you will want to meet with the teacher about what they expect of you. Depending on the teacher's style, they may heavily rely on you to organize classroom parties and events.

Others may have a particular way of doing things and only ask you to do certain things. Either way, you will want to respect the teacher's style and work with them to create their vision for the class.

How to keep a cavity from getting worse
Brush the area carefully.
Ideally, brushing your teeth will help prevent cavities altogether. However, brushing is also important to prevent cavities from getting worse.

Buildup of food stimulates the growth of bacteria. This will get into the cavity and make it worse.

A group of people are seen riding around in tubes while pushing themselves down a diver. the people

continue to ride in the tubes down the river while looking towards the camera as well as laughing and smiling.

How to dehydrate foods
Invest in a vertical dehydrator if you are only drying a few or one type of food.
Vertical dehydrators have heat travel from top to bottom or vice versa. They tend to be smaller but are also cheaper.
Vertical dehydrators with a fan on the bottom provide the best heat distribution and are more efficient because hot air rises. However, the drippings from fruits, vegetables, and meats can drip into the fan and become difficult to clean.