Designing Solutions for Motion

Active learning works for this topic because young learners build lasting understanding of forces and motion through hands-on problem solving. When students design and test their own solutions, they connect abstract ideas like push and stop to concrete outcomes they can see and feel.

• Kindergarten
• Science
• 4 activities
• 15 min–25 min

Learning Objectives

1. Design a structure to successfully stop a moving object within specified parameters.
2. Compare the effectiveness of different tools used to move an object based on observed effort.
3. Justify why certain objects require more force to initiate or sustain motion.
4. Evaluate the success of a designed solution against a defined problem.

Problem-Based Learning

⏱ 25 min·Pairs

Engineering Challenge: Stop That Marble

Set up a cardboard ramp at a fixed angle. Give each pair four materials (foam pieces, craft sticks, cotton balls, and masking tape) and ask them to build a structure that stops the marble before it reaches a taped line on the floor. After each test, partners discuss what they noticed and must change at least one thing before testing again.

Prepare & details

Construct a structure to stop a fast-moving marble.

Facilitation Tip: During Gallery Walk: Design Revision Stories, set clear time limits for each station so students focus on sharing key changes and results.

Setup: Groups at tables with access to research materials

Materials: Problem scenario document, KWL chart or inquiry framework, Resource library, Solution presentation template

• Analyze
• Evaluate
• Create
• Decision-Making
• Self-Management
• Relationship Skills

Inquiry Circle

⏱ 20 min·Whole Class

Inquiry Circle: Moving the Heavy Box

Place a heavy bin filled with books in one corner and mark a target spot across the room. Students brainstorm tools that might help, then try each one together: bare hands, a wheeled cart, a piece of cardboard as a slide, and a rope. After each tool, pause to describe how much force the class needed and which approach felt easiest.

Prepare & details

Evaluate what tools we can use to move a heavy object across the room.

Setup: Groups at tables with access to source materials

Materials: Source material collection, Inquiry cycle worksheet, Question generation protocol, Findings presentation template

• Analyze
• Evaluate
• Create
• Self-Management
• Self-Awareness

Problem-Based Learning

⏱ 15 min·Small Groups

Sorting: More Force or Less Force?

Provide picture cards showing objects of varying mass (a pencil, a chair, a bucket of sand, a stuffed animal). Students sort them onto a two-column mat labeled "Needs a little force" and "Needs a lot of force," then justify one choice to their group using the sentence frame: "This needs more force because it is..."

Prepare & details

Justify why some objects require more force to move than others.

Setup: Groups at tables with access to research materials

Materials: Problem scenario document, KWL chart or inquiry framework, Resource library, Solution presentation template

• Analyze
• Evaluate
• Create
• Decision-Making
• Self-Management
• Relationship Skills

Gallery Walk

⏱ 20 min·Whole Class

Gallery Walk: Design Revision Stories

After the marble challenge, pairs draw their first and final barrier designs side by side on a sheet labeled "We tried... then we changed..." Post these around the room and give students sticky dots to mark the revision they think made the biggest difference. Close by reading a few aloud and naming what engineers call that process: iteration.

Prepare & details

Construct a structure to stop a fast-moving marble.

Setup: Wall space or tables arranged around room perimeter

Materials: Large paper/poster boards, Markers, Sticky notes for feedback

• Understand
• Apply
• Analyze
• Create
• Relationship Skills
• Social Awareness

Teaching This Topic

Teachers approach this topic by giving students repeated opportunities to test ideas and revise designs, which aligns with how engineers work. Avoid stepping in too soon to fix problems; instead, ask guiding questions that help students identify what to try next. Research shows that Kindergarteners develop deeper understanding when they experience the iterative nature of design rather than receiving explanations first.

What to Expect

Successful learning looks like students defining a problem, selecting appropriate materials, testing their designs, and revising based on evidence. Children should begin to explain how different forces affect motion and how design choices influence outcomes.

Watch Out for These Misconceptions

Common Misconception

During Engineering Challenge: Stop That Marble, watch for students who think a heavier barrier will always work best. Redirect them by asking them to test a small rigid block against a large soft pillow to see which stops the marble more effectively.

What to Teach Instead

Use the marble challenge to show that material flexibility, surface contact, and placement matter more than mass alone. Ask students to describe why the pillow absorbed the marble’s energy while the block stopped it completely.

Common Misconception

During Collaborative Investigation: Moving the Heavy Box, watch for students who believe the box is resisting movement on purpose. Redirect them by having them push the box on different surfaces and with different tools like ramps or rollers.

What to Teach Instead

Guide students to compare how much force is needed to move the box on the floor versus on a roller. Ask them to explain why the box moves more easily with the roller and how this shows forces at work.

Common Misconception

During Gallery Walk: Design Revision Stories, watch for students who see a first attempt as a failure. Redirect them by having them focus on one change they made and why it improved their design.

What to Teach Instead

Use the gallery walk to emphasize iteration. Ask students to share one thing they changed and what they learned from the first test, reinforcing that engineering is about improving designs through testing.

Assessment Ideas

Exit Ticket

After Engineering Challenge: Stop That Marble, provide students with a picture of a marble rolling towards a target. Ask them to draw one simple structure that could stop the marble and write one word describing the force they used to build it.

Discussion Prompt

During Collaborative Investigation: Moving the Heavy Box, present students with two different objects and ask: 'Which object do you think will be harder to push across the table? Why?' Listen for explanations that mention size, weight, or the amount of push needed.

Quick Check

During Engineering Challenge: Stop That Marble, observe students as they test their designs. Ask: 'What did you try first? What happened? What will you try next?' Note their ability to describe their actions and initial results.

Extensions & Scaffolding

• Challenge students to design a barrier that stops the marble but allows a ping pong ball to pass through.
• Scaffolding: Provide picture cards of different barrier materials for students to choose from during Stop That Marble.
• Deeper exploration: Introduce the idea of fair tests by asking students to change only one variable at a time in the heavy box investigation.

Key Vocabulary

force	A push or a pull that can make an object move, stop moving, or change direction.
motion	The act or process of moving; a change in position.
design	To plan and make something for a specific purpose.
solution	An answer to a problem or a way to fix something.
structure	Something that is built or made, like a barrier or a ramp.