Standards-Based Learning
Each lesson was aimed at teaching one of the targeted standards. In the video, the students are interacting with the NGSS, Grade 3, Physical Science, PS2.B: Types of Interactions: Objects in contact exert forces on each other (3-PS2-1). In the beginning of this activity, two students are demonstrating balanced and unbalanced forces using their hands. As the two students are demonstrating these forces, I asked the audience questions about the forces. Then, I had one of the students exert a stronger force than the other student. Next, I had all students stand up and find a partner. I instructed the partners to put their hands out like they were giving their partner a high five. As the student's hands were in contact, I asked the students if they were demonstrating a balanced force or an unbalanced force. Then I asked the students what the net force of their hands in contact would be. Then I explained that they were exerting the same force on each other's hands, making it a balanced force. Next, I instructed the taller partner to exert a stronger force. As the students changed their forces, I asked what kind of force they were representing and if the net force would still be zero. Then, I had the students change their forces to show me a net force of zero. This activity allowed the students to apply the concepts we have been learning about and recognize how the concepts are tied together. I was very impressed with the student's participation during the activity and how they used vocabulary terms and concepts in their responses.