When your parent gets the bill, you would experience a very bad result!
Ask questions to help you understand products or programs that fill similar needs to the need you are trying to fill. Compare the characteristics of a structure that is made using different materials.
For example, materials to make our baseball bat lighter in weight are probably more expensive the lighter they are. It's another good time to ask your mentors, parents, and teachers for advice, but do so by asking specific questions. You can't have the lowest weight and the lowest cost at the same time; therefore, when we design our bat we will have to make a tradeoff between cost and weight.
He tried to teach me to do the same, but instead I liked to just visualize everything in my head, then hammer away. Can you alter the shape?
You'll see things you wouldn't see in your head, and you'll be able to refer back to your plans to remember details you would otherwise forget.