Estimation Mysteries

Place Value  Knockout https://www.youtube.com/watch?v=vfUwi65WlEQ{...}

https://docs.google.com/presentation/d/1FyVphSgATJUscRuen0yqX5ZOyepo-qaW_LLLFl0DMKE/edit?usp=sharing   Help  get Buzz back to Earth from the sun.  Work with a partner and take turns giving one{...}

  To compare the length of different parts of your body to your height, we will first create a string{...}