Invite your first grader to enter the world of the teen numbers as she starts writing 11-20. Practice tracing the name of each number before writing it.

So your child has mastered the numbers 1-10 -- what's next? How about a bright and colorful number pyramid that challenges them to tackle numbers 11-20?

This page presents the altocumulus cloud, the kind of cloud that often comes before a thunderstorm.

Meet the altostratus cloud, a thin cloud that sometimes makes rain, in this earth sceince worksheet.

Meet the stratocumulus cloud, the kind of cloud that tend to gather in groups when a storm is on the way.

Ever lay on your back to watch the clouds? With this cloud chart you and your little scientist can identify the different types of cloud formations.

Have some fun with this cootie catcher paper project, perfect for using as a classroom icebreaker or a family travel game!

Learn your clouds with this coloring series of cloud types that merges science with coloring fun.

Studying earth science? Learn about the different types of clouds with the series of cloud types.

Learn all about the cumulonimbus cloud, more commonly known by a much more fearsome name: the thundercloud!

Turn a patchy day into a fun science adventure with this cloud gazing worksheet! Draw the clouds you spot, and then identify which type they are.

Ever lay on your back to look at the clouds? Now you'll know which types of cloud make up all those silly shapes you see with this diagram.

This story starter featuring an alien butterfly catcher will surely put your little one in a silly mood! Add color to the picture and write a story about it.