Identifying Forces: Push and Pull

Active learning helps grade 3 students grasp pushes and pulls by letting them feel and see forces in action. Moving objects with their own energy builds memory and confidence before moving to abstract ideas like balanced forces.

• Grade 3
• Science
• 4 activities
• 20 min–45 min

Learning Objectives

1. Identify examples of pushes and pulls acting on objects in various scenarios.
2. Explain how the direction and strength of a push or pull force affect an object's motion.
3. Compare the effects of different combinations of pushes and pulls on a single object.
4. Construct a simple model demonstrating how pushes and pulls cause changes in motion.

Stations Rotation

⏱ 45 min·Small Groups

Stations Rotation: Push-Pull Challenges

Prepare four stations with ramps, balls, toy cars, and ropes. At each, students apply pushes or pulls of different strengths, measure distance traveled with rulers, and record changes in motion. Groups rotate every 10 minutes, discussing patterns before switching.

Prepare & details

Differentiate between a push and a pull force.

Facilitation Tip: During Station Rotation, position yourself to notice hesitant students and ask guiding questions, like 'Which way did the car roll when you pushed from the top?'

Setup: Tables/desks arranged in 4-6 distinct stations around room

Materials: Station instruction cards, Different materials per station, Rotation timer

• Remember
• Understand
• Apply
• Analyze
• Self-Management
• Relationship Skills

Experiential Learning

⏱ 30 min·Pairs

Pairs Experiment: Force Balances

Partners select objects like blocks or balls. One applies a push while the other counters with a pull, adjusting until motion stops. They sketch scenarios showing multiple forces and predict results before testing.

Prepare & details

Analyze how different forces can change an object's motion.

Facilitation Tip: In Force Balances, circulate and ask pairs to demonstrate balanced forces by holding the rope steady; this spot-checks understanding of equal pulls.

Setup: Varies; may include outdoor space, lab, or community setting

Materials: Experience setup materials, Reflection journal with prompts, Observation worksheet, Connection-to-content framework

• Apply
• Analyze
• Evaluate
• Self-Awareness
• Self-Management
• Social Awareness

Experiential Learning

⏱ 35 min·Whole Class

Whole Class Demo: Playground Forces

Take students outside to observe swings, slides, and balls. Class brainstorms pushes and pulls acting together, then demonstrates with volunteer scenarios. Compile observations on a shared chart.

Prepare & details

Construct a scenario where multiple forces act on a single object.

Facilitation Tip: Before Playground Forces, demonstrate how to mark start and stop points with chalk so students focus on force direction rather than measuring distance.

Setup: Varies; may include outdoor space, lab, or community setting

Materials: Experience setup materials, Reflection journal with prompts, Observation worksheet, Connection-to-content framework

• Apply
• Analyze
• Evaluate
• Self-Awareness
• Self-Management
• Social Awareness

Experiential Learning

⏱ 20 min·Individual

Individual Journal: Force Scenarios

Students draw and label three everyday scenes with pushes or pulls, like opening a door or sliding on ice. They write predictions for motion changes if force strength varies.

Prepare & details

Differentiate between a push and a pull force.

Facilitation Tip: At the journal station, prompt students to sketch arrows showing force direction; this targets misconceptions about force direction early.

Setup: Varies; may include outdoor space, lab, or community setting

Materials: Experience setup materials, Reflection journal with prompts, Observation worksheet, Connection-to-content framework

• Apply
• Analyze
• Evaluate
• Self-Awareness
• Self-Management
• Social Awareness

Teaching This Topic

Start with tangible experiences so students build intuition before vocabulary. Avoid introducing terms like 'balanced forces' too soon; let students feel the tension first. Research shows movement-based lessons strengthen spatial reasoning, which supports physics learning later. Model curiosity by asking 'What happens if we push here instead?' to keep the focus on exploration.

What to Expect

Students will confidently label pushes and pulls in real settings, predict how force strength and direction change motion, and explain why some forces do not cause motion. Clear labeling, accurate predictions, and thoughtful discussions show readiness to advance.

Watch Out for These Misconceptions

Common Misconception

During Station Rotation: Push-Pull Challenges, watch for students who assume a force only exists when an object moves. Redirect them by asking, 'What do you feel in your hands when you hold the rope still after tugging? Could that be a force?'

What to Teach Instead

During Station Rotation: Push-Pull Challenges, have students hold the rope taut after tugging and feel the tension. Ask them to predict what would happen if one partner let go; this connects tension to potential motion.

Common Misconception

During Force Balances, watch for students who label pushes and pulls as always opposite. Redirect them by setting up two ropes pulling the same object sideways and asking, 'Are both forces pushing or pulling? How does the object move?'

What to Teach Instead

During Force Balances, guide pairs to arrange forces in the same direction using two spring scales. Ask, 'What happens when both pulls go the same way?' to correct the opposites-only idea.

Common Misconception

During Station Rotation: Push-Pull Challenges, watch for students who overemphasize weight when predicting force needs. Redirect them by asking, 'Did the heavy ball start moving with the same push as the light ball?' after testing on the ramp.

What to Teach Instead

During Station Rotation: Push-Pull Challenges, provide two balls of different weights and ask students to push each one with equal effort on the ramp. Discuss why the heavier ball needs more force to start, but keep the focus on the push strength, not weight alone.

Assessment Ideas

Quick Check

After Station Rotation: Push-Pull Challenges, show images of common actions. Ask students to label each as push or pull, then write one sentence about how the force changes the object’s motion. Collect responses to check for accurate labeling and motion descriptions.

Exit Ticket

During Force Balances, have students draw one object with two forces acting on it—one push and one pull—using arrows to show direction. Ask them to write one sentence predicting the object’s motion, then collect tickets to assess understanding of force direction.

Discussion Prompt

After Playground Forces, ask students to imagine pushing a swing. Guide them to identify gravity and air resistance as additional forces. Listen for mentions of opposing forces that slow or change the swing’s path to evaluate their grasp of balanced forces.

Extensions & Scaffolding

• Challenge early finishers to combine pushes and pulls in one action, like pushing a toy car while pulling a string attached to it, then sketch the motion path.
• Scaffolding: Provide picture cards of pushes and pulls for students who struggle to verbalize; they can sort them into two columns before labeling.
• Deeper exploration: Ask students to predict how the motion changes if the same push is applied on a smooth versus a rough surface, then test their ideas on the ramp.

Key Vocabulary

Push	A force that moves an object away from the source of the force.
Pull	A force that moves an object toward the source of the force.
Force	A push or a pull that can cause an object to move, stop moving, or change direction.
Motion	The process of moving or changing position.