Hey there, young engineers! Welcome back to our fun engineering adventure. Last time, we talked about how engineers come up with lots of different solutions to solve a problem. But we left with a big question: Is one solution better than another? Let’s dive in and find out!
First, let’s remember what engineers do. Engineers are people who design and build things to solve problems. They follow a series of steps called the engineering process. This process helps them find solutions—yes, more than one!—to any problem they face. By having multiple solutions, they can test different ideas to see which one works best.
So, how do engineers decide which solution is the best? They think carefully about each idea and ask questions. It’s like making a list of pros and cons, or strengths and weaknesses, for each possible solution. Ready to think like an engineer? Let’s go!
Our first idea is to use balloons to float across a gorge. Sounds fun, right? But let’s see if it works:
So, this idea might be too risky and not safe enough to get us across.
Next, we thought about using an umbrella to float over the gorge, like Mary Poppins. Let’s check it out:
Unfortunately, this idea won’t get us safely across either.
Our final idea is to build a hang glider using our tent. Let’s see how it measures up:
This idea seems to have more strengths and fewer weaknesses than the others. A good engineer would test it many times to ensure it’s safe before trying it for real.
So, what did we learn? By thinking logically, asking questions, and looking at the strengths and weaknesses of each solution, we can figure out which one is the best. In this case, the hang glider seems to be the best option we have right now. Remember, some solutions are better than others, and that’s okay! Keep thinking like an engineer, and happy engineering!
Build Your Own Solution: Gather some simple materials like paper, straws, tape, and string. Try to create your own mini hang glider or another flying device. Test it by gently throwing it and see how far it can glide. Think about what makes it fly well and what could be improved. Can you make it go further with some changes?
Pros and Cons List: Choose a problem you face at home or school, like organizing your toys or carrying books. Come up with two different solutions. Make a list of pros and cons for each solution, just like an engineer. Which solution seems better? Why?
Observation Walk: Take a walk around your neighborhood or school and look for things that engineers might have designed, like bridges, playgrounds, or buildings. Think about the problems these designs solve. Can you spot any strengths or weaknesses in these designs? How might you improve them?
