Karina's Super Solution Solver Challenge!

The Big Idea: Today, we're going to be problem-solving superstars! Real-world problems often have many possible answers. Our job today is to come up with different ways to solve a building challenge and figure out which way works best based on some rules!

Let's Get Started! (5 mins)

Imagine you need to get something across a gap, like a small river or canyon. What could you build? (Wait for ideas like 'a bridge'). Exactly! But what makes a GOOD bridge?

• It needs to be strong enough, right? That's a CRITERIA - a rule for success.
• Maybe you only have certain things to build it with? That's a CONSTRAINT - a limit or restriction.

Today, your challenge is to use these ideas!

The Super Solver Challenge (5 mins)

Your Mission: Build a bridge that can span the gap between these two stacks of books (approx. 12 inches apart).

Criteria (Rules for Success):

1. Your bridge must hold the weight of these 10 coins (or this small toy car) without collapsing.
2. Your bridge should stand on its own across the gap.

Constraints (Limits):

1. You can ONLY use the materials provided (LEGOs, craft sticks, tape, etc.).
2. You need to come up with and build *three* different bridge ideas!

Brainstorm Blitz! (10 mins)

Grab your paper and pencil! Before you build, let's quickly sketch out three COMPLETELY DIFFERENT ways you could build a bridge using these materials. Think about different shapes, supports, and ways to connect things. Don't worry about making them perfect drawings!

Build Your Prototypes! (20 mins)

Awesome ideas! Now, pick your three designs and build small, simple versions of them. These are called 'prototypes'. They don't need to be huge or perfect, just good enough to test your idea. Have fun building!

Testing Time! (10 mins)

Let's see how your bridges measure up!

1. Carefully place Bridge Design 1 across the gap.
2. Gently add the weight (coins/car). What happens? Does it hold? Does it bend? Record your observations.
3. Repeat the test for Bridge Design 2 and Bridge Design 3.

Compare Your Solutions! (10 mins)

Now let's be detectives and compare our results. Let's make a comparison chart:

| Feature | Bridge 1 | Bridge 2 | Bridge 3 |

|---|---|---|---|

| Held the weight? (Yes/No) | | | |

| Seemed sturdy? (Yes/Sort of/No) | | | |

| Used few materials? (Yes/No) | | | |

| Easy to build? (Yes/No) | | | |

Fill this out together based on your building and testing.

Super Solver Summary (5 mins)

Look at your chart and think about your bridges.

• Which bridge design do you think worked BEST for this challenge, considering our criteria and constraints? Why?
• Was the strongest bridge also the easiest to build, or the one that used the fewest materials?
• What did you learn about creating and comparing different solutions?

Great job being a Super Solution Solver, Karina! You generated lots of ideas and figured out how to compare them like a real engineer!