Science · Grade 9 · Scientific Literacy and Engineering Design · Term 4

Brainstorming and Ideation

Generating multiple potential solutions to an engineering problem.

• Ontario Curriculum Expectations
• HS-ETS1-2

About This Topic

Brainstorming and ideation form a core step in the engineering design process, where students generate a wide range of potential solutions to a defined problem without initial judgment. In Grade 9 Ontario science, this aligns with scientific literacy and engineering design expectations, as students tackle challenges like designing sustainable water filters or efficient bridges. They practice techniques such as mind mapping and round-robin sharing to produce diverse ideas, fostering creativity while addressing real-world constraints like materials and safety.

This topic integrates with the broader curriculum by building skills in systems thinking and iterative design, essential for units on scientific investigation and technology. Students learn that effective ideation relies on quantity over quality at first, deferring critique to later evaluation phases. This approach mirrors professional engineering practices and prepares students for capstone projects.

Active learning shines here because collaborative brainstorming sessions allow students to build on each other's ideas in real time, making abstract processes concrete. Techniques like silent writing followed by group sharing reduce dominant voices and encourage every student to contribute, leading to richer idea pools and deeper understanding of the design cycle.

Key Questions

1. Design multiple creative solutions to a given engineering challenge.
2. Evaluate different brainstorming techniques for their effectiveness in generating diverse ideas.
3. Explain the importance of deferring judgment during the ideation phase.

Learning Objectives

• Generate at least 10 distinct potential solutions for a given engineering design challenge.
• Compare the effectiveness of at least three different brainstorming techniques in producing a diverse range of ideas.
• Explain the rationale behind deferring judgment during the initial ideation phase of the engineering design process.
• Critique a set of generated ideas based on predefined criteria after the deferral period.

Before You Start

Identifying and Defining Problems

Why: Students must be able to clearly understand and articulate an engineering problem before they can begin generating solutions.

Introduction to the Engineering Design Process

Why: Familiarity with the overall steps of the engineering design process provides context for the importance of the ideation phase.

Key Vocabulary

Ideation	The process of forming ideas or concepts, especially for potential solutions to a problem. It focuses on generating a large quantity of diverse ideas.
Brainstorming	A group or individual creativity technique that involves generating a large number of ideas for the solution to a problem. The emphasis is on quantity and spontaneity.
Defer Judgment	A principle of brainstorming where criticism or evaluation of ideas is postponed until after the generation phase. This encourages free thinking and prevents premature dismissal of concepts.
Divergent Thinking	A thought process used to generate creative ideas by exploring many possible solutions. It is characterized by flexibility, originality, and fluency of thought.
Convergent Thinking	A thought process used to arrive at a single best solution to a problem, typically involving logical steps and evaluation. This follows divergent thinking.

Watch Out for These Misconceptions

Common Misconception

The first idea that comes to mind is always the best.

What to Teach Instead

Students often fixate on initial thoughts, limiting diversity. Active pair-sharing reveals how combining ideas yields stronger solutions, as peers challenge and expand concepts. Group debriefs help students see quantity leads to quality.

Common Misconception

Criticizing ideas during brainstorming improves them right away.

What to Teach Instead

Judging early stifles creativity and discourages risk-taking. Round-robin activities enforce deferral rules, showing students how free-flowing input generates more options. Peer observation logs track how non-judgmental spaces boost participation.

Common Misconception

Engineering problems have only one correct solution.

What to Teach Instead

This view narrows thinking to convergence too soon. Gallery walks expose multiple viable paths, with voting activities helping students value trade-offs. Collaborative evaluation phases reinforce iteration over singular answers.

Active Learning Ideas

Think-Pair-Share: Rube Goldberg Machines

Pose a problem like moving a marble across the room using classroom materials. Students think individually for 3 minutes, pair up to share and combine 5 ideas each, then share one group prototype with the class. End with a vote on most creative concepts.

30 min·Pairs

Round Robin: Eco-Friendly Packaging

Present a packaging challenge for fragile fruit. In small groups, students pass paper around the circle, adding one idea per turn for 10 minutes with no repeats or judgments. Groups then sketch top three ideas and explain selection criteria.

45 min·Small Groups

Gallery Walk: Renewable Energy Devices

Individually create mind maps for wind or solar inventions on chart paper. Post maps around the room for a gallery walk where students add sticky notes with build-on ideas. Debrief on how additions expanded original concepts.

50 min·Individual

SCAMPER Chain: Bridge Redesign

Use SCAMPER prompts (Substitute, Combine, etc.) for bridge failures. In chains, each student applies one prompt to the prior idea, passing verbally for 15 minutes. Groups prototype one evolved design with recyclables.

40 min·Small Groups

Real-World Connections

• Product designers at companies like Apple use brainstorming sessions to conceptualize new features for smartphones and laptops, exploring hundreds of possibilities before narrowing down to viable options.
• Urban planners in cities like Toronto employ ideation workshops with community members to generate creative solutions for improving public transportation or green spaces, ensuring a wide range of perspectives are considered.

Assessment Ideas

Quick Check

Present students with a simple engineering challenge (e.g., designing a better way to carry books). Ask them to write down 5 ideas in 3 minutes using a silent brainstorming method. Observe for quantity and variety of ideas.

Discussion Prompt

After a group brainstorming session, ask students: 'Which brainstorming technique did you find most effective for generating new ideas today, and why? How did deferring judgment impact your willingness to share ideas?'

Peer Assessment

Students share their individual lists of brainstormed ideas. In pairs, they identify two ideas that are similar and two that are unique compared to their partner's list. They then discuss why they think certain ideas emerged more readily than others.

Frequently Asked Questions

How do you introduce brainstorming techniques in grade 9 engineering design?

Start with a demo video of professional engineers ideating, then model rules like 'no judgment' using a simple problem. Practice with timed silent brainstorming followed by sharing rounds. Provide rubrics focusing on idea quantity and diversity to guide students toward effective habits.

Why defer judgment during ideation in science class?

Deferring judgment keeps idea flow open, preventing early dismissal of unconventional solutions that might prove innovative. In class, this builds student confidence to share wild ideas, leading to hybrid concepts that outperform solo thinking. Track group outputs to show data on increased creativity.

How can active learning improve brainstorming skills?

Active strategies like think-pair-share or gallery walks engage all students kinesthetically and socially, turning passive listening into dynamic contribution. These methods visibly demonstrate idea evolution, helping quieter students participate while groups quantify diverse outputs. Reflection journals connect experiences to design process standards.

What engineering challenges work best for ideation practice?

Use open-ended problems like designing low-cost water purifiers or earthquake-resistant structures, tied to Ontario curriculum units. Supply constraints like budget or materials to mimic real engineering. Student-led challenges from current events add relevance and motivation.