This resource is explicitly designed to build towards this science and engineering practice.
Comments about Including the Science and Engineering Practice
This Practice is explicit in the lesson plan as written, but not in the student handout as written.
During the lesson, students plan and carry out investigations into strengths of electromagnets. The first portion of the student design process (the “Four Questions Strategy”) is faithful to the ideas of NGSS: working individually and collaboratively (see lesson plan for each of these), identifying variables and controls. The second portion of the student activity (“Electromagnet Planning Sheet”) as it stands gives a narrow question to answer (how will the number of turns of wire affect the strength of the electromagnet?), perhaps more appropriate for lower elementary students to see the correlation between their brainstorming and an “actual experiment”. At the middle school level, teachers will need to modify this second portion to allow for more open-ended, student- conceived and student-designed investigations. See the Teacher Tips for the Performance Indicator for details about how to modify this lesson.