Manga High:  Mangahigh.com

4^th grade level:

• Stem and Leaf Plots
• Draw Shapes and patterns on a Grid
• Acute and Obtuse Angles
• Times Tables and Division Facts
• Deal with Remainders
• Continue Number Sequences
• Simplify Fractions
• Find the Area of a Rectangle

Achieve3000:  Achieve 3000.com

Social Studies:

• Civil War Reconstruction: Where History Still Lives
• Civil War and Reconstruction: The Words of the War
• On the Go
• Westward Expansion: Discovering Our World
• Westward Expansion: The Rush to Riches
• Early Republic: Where History Still Lives
• Freeing the Slaves
• Three People Who Change the World

Science:

• Lunar Takeaway
• A New View of the Sun
• Hello Universe?  Anyone Home?
• Have You Seen the Milky Way?
• A Small Country Does Something Big
• The Water Cops
• Is Your Skin Crawling?
• Plants and Animals Need Us

Reading:

• A New Use For Hair
• A Greyhound’s Best Friend
• Working at Working Out
• Drive-Ins Are Back
• Can You Take the Heat
• The Seaweed State?
• What’s Worth Reading? Ask a Kid
• Laugh and Be Healthy