To solve this problem, we need to understand what "parallel" means in geometry and then look at the shapes of the items listed.
Step 1: Understand Parallel Lines
The worksheet gives a helpful hint in the pink box: "Parallel lines... do not cross each other, and they stay the same width apart." Imagine train tracks; they run side-by-side forever without touching. If you draw two straight lines that never touch, they are parallel.
Step 2: Analyze Each Item
Let's look at the list of items to see which ones have parts that act like parallel lines (straight sides that don't touch).
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Train tracks: These are the classic example of parallel lines. The two metal rails run side-by-side and never cross.
(Yes)
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A piece of paper: Most paper is a rectangle or square. The top edge runs straight across, and the bottom edge runs straight across. They never touch. The left and right sides are also parallel.
(Yes)
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A round rug: A round rug is a circle. It has no straight sides. You cannot find two straight lines on it that are parallel.
(No)
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A book: Like a piece of paper, a book is usually rectangular. The top and bottom covers are parallel, and the spine and the open edge are parallel.
(Yes)
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A door frame: A standard door frame is rectangular. The two vertical sides go up and down without crossing, and the top and bottom are parallel.
(Yes)
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A bowl: A bowl is curved and round. Like the rug, it doesn't have straight, flat sides that run parallel to each other.
(No)
Conclusion:
The items that have parallel lines (straight edges that stay the same distance apart) are the train tracks, the piece of paper, the book, and the door frame.
Final Answer:
You should circle these items:
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train tracks
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a piece of paper
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a book
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a door frame
Parent Tip: Review the logic above to help your child master the concept of longitude and latitude worksheet for 5th grade.
