Grade Level 3

Corn: Staying Alive!

Entire lesson below.  Also available is the printable PDF version.

Students propose ideas about what they think plants need to grow, and specifically what corn plants need to germinate and grow.  They tackle the challenge their teacher sets before them to prove their ideas with evidence, coming up with ideas themselves about how to do that.  They use their imaginations to think clearly in planning their investigations and making predictions, and they carry out the investigations over the course of several days or a few weeks.  During that time, they observe carefully and record their data accurately by drawing and writing.   Afterward, they examine their findings, and are able explain to their teacher and peers what corn plants need to germinate and grow based on their evidence.  They reflect on whether their ideas have changed based on their evidence, and how scientists often have to change their ideas based on evidence, too.