• National Library of Virtual Manipulatives - This site provides a variety of math tools and games for all levels of learners. We used it in class to do everything from practicing basic facts to some very high end problem solving.
• Math Baseball - A fun way to practice math facts.
• Math Playground - Another fun way to practice.
• Cool Math 4 Kids - Another math related site with games.
• Math Fact Cafe - Online flashcards and word problems for practice.

Nature Sites

• Bird Identification and Bird Song Recordings at eNature.com
• Visual Key for Bird Identification - Identify birds by their body shape
• Bird Identification by color - Identify birds of the Eastern US by color. This site also has bird checklists for Western Pennsylvania that could be used in this part of Ohio.

• Tree Identification for common Ohio trees.

• A walk in the woods - This site provides a virtual tour of a forest and includes a lot of information about things that one could see on a walk.
• Summit County Metroparks events - This calendar frequently features events that are both fun and educational. 
• Cuyahoga Valley National Park events - This calendar frequently features events that are both fun and educational.

Spelling

• Spelling City - A fun way to practice your spelling words.

Social Studies

•  The City of Hudson - Hudson City's government site.
• Hudson Stops on the Underground Railroad

 Weather Information

• Current Weather - Get your current weather here.
• Cloud Information - Information about different types of clouds.
• Weather Predictor - This site makes weather predictions if you put in current weather.