Compare four sets of pattern blocks. Use pattern blocks to make different shapes. Warm up with a Mystery Math Mistake to tell whether Dotson's 10-frames represent a number less than his focus number.

Add Yahoo as a preferred source to see more of our stories on Google. When it comes to our nails, we love experimenting with different polish shades and nail art to add pretty pizzazz to our fingers.

Hunt for shapes and make familiar objects by putting together several different shapes. Warm up with a Mystery Math Mistake to tell whether Dotson's 10-frames represent a number more than his focus ...

The spiky, iconic Canadian maple leaf. A large, lush Florida palm leaf. Thin aspen leaves rustling in the crisp Colorado air. You can probably recall many different leaf shapes from many different ...