Exploring Magnetism

Introduction/Mini Lesson/”I Do” (10 minutes)

Preview the Lesson

• Objectives: “Today, we’re learning how magnets can either pull (attract) or push (repel) objects. We’ll see how this force works and record what we discover in our journals.”
• Agenda: “We’ll start by observing magnets together, then you’ll get to test them on your own and write about what happens.”
• Focus Question: “How do magnets interact with each other and with other objects?”

Introduce Key Vocabulary

• Words: Magnetism, attract, repel, force.
• Visuals: Show images depicting “attract” and “repel” and relate these words to familiar examples (e.g., “attract” like gravity, “repel” like pushing two same-side magnets).

Context and Background

• Set Up Inquiry: “Have you ever noticed how some objects seem to pull toward each other while others push away? Today, we’re going to explore this idea with magnets, which are unique because they can pull and push without even touching other objects.”
• Relate to Prior Knowledge: Connect the concept of push and pull to familiar experiences, like opening doors (push) or bringing two sides of Velcro together (pull).

Modeling and Demonstration

1. First Demonstration: Hold up two bar magnets with opposite poles facing. “Look carefully. When I bring the red side of one magnet close to the blue side of the other, watch what happens.” Slowly move the magnets together to show attraction. “See how they pull together? This is what we call attraction.”
2. Second Demonstration: Turn the magnets so that the same poles (e.g., red-red) face each other. “Now, if I bring two red sides together, what do you think will happen?” Wait for predictions, then move the magnets together to show repulsion. “Notice how they push away from each other without even touching? That’s called repulsion.”
3. Student Engagement Prompt: “In your journals, make a prediction: What do you think will happen when you bring different sides of a magnet close to each other?”

Visual Supports

• For students with IEPs or who are ELLs, display color-coded magnets and diagrams that clearly show attraction (e.g., opposite colors attracting) and repulsion (e.g., same colors repelling).

Sentence Starters and Prompts

• Provide sentence frames like “I predict that… because…” to help students who need extra support in framing their thoughts.

Small-Group Demonstrations

• For students needing additional support, demonstrate attraction and repulsion with magnets in small groups, allowing them to observe more closely and ask questions.

Engagement with Physical Manipulatives

• Allow students who benefit from tactile learning to handle the magnets early on, testing out attraction and repulsion and then sharing what they notice with the group.

Curriculum Area and Level

Curriculum Area: Science—Physical Science
Grade Level: 4th Grade
Standards: This lesson aligns with the Next Generation Science Standards (NGSS) for 4th Grade, specifically PS2.B: Types of Interactions, which covers how objects interact through forces including magnetism.

This lesson is designed to capture students' imaginations and encourage active participation while providing a tactile learning experience. The use of physical manipulatives and visual aids makes the abstract concept of magnetism accessible and engaging for young learners. Through inquiry and prediction, students build critical thinking skills and connect scientific principles to everyday experiences. By meeting diverse learning needs through scaffolded support and small-group demonstrations, this plan ensures all students can actively contribute and succeed.