A geodynamicist, Professor Spiegelman (a.k.a. Ms. O’Brien’s husband) made a guest appearance at school to stretch what we have learned about the geosphere.
Ms. O'Brien's Blog
Connecting Beyond the Classroom
A geodynamicist, Professor Spiegelman (a.k.a. Ms. O’Brien’s husband) made a guest appearance at school to stretch what we have learned about the geosphere.