Lesson
Let's explore scale drawings.
Exercise (PageIndex{1}): What is a Scale Drawing?
Element 1.2.1: Intentional teaching Educators are deliberate, purposeful, and thoughtful in their decisions and actions. Element 1.2.2: Responsive teaching and scaffolding Educators respond to children's ideas and play and extend children's learning through open-ended questions, interactions and feedback. Element 1.2.3: Child directed learning. Find Area rug 1-1/2 x 2-1/2 rugs at Lowe's today. Shop rugs and a variety of home decor products online at Lowes.com. Vicinity meaning: 1. The area around a place or where the speaker is: 2. The area around a place or where the.
Here are some drawings of a school bus, a quarter, and the subway lines around Boston, Massachusetts. The first three drawings are scale drawings of these objects.
The next three drawings are not scale drawings of these objects.
Discuss with your partner what a scale drawing is.
Exercise (PageIndex{2}): Sizing Up a Basketball Court
Hercules and pegasus. Your teacher will give you a scale drawing of a basketball court. The drawing does not have any measurements labeled, but it says that 1 centimeter represents 2 meters.
- Measure the distances on the scale drawing that are labeled a–d to the nearest tenth of a centimeter. Record your results in the first row of the table.
- The statement '1 cm represents 2 m' is the scale of the drawing. It can also be expressed as '1 cm to 2 m,' or '1 cm for every 2 m.' What do you think the scale tells us?
- How long would each measurement from the first question be on an actual basketball court? Explain or show your reasoning.
measurement (a) length of court (b) width of court (c) hoop to hoop (d) 3 point line to sideline scale drawing actual court - On an actual basketball court, the bench area is typically 9 meters long.
- Without measuring, determine how long the bench area should be on the scale drawing.
- Check your answer by measuring the bench area on the scale drawing. Did your prediction match your measurement?
Exercise (PageIndex{3}): Tall Structures
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Cleanapp 5 1 2. Here is a scale drawing of some of the world's tallest structures.
- About how tall is the actual Willis Tower? About how tall is the actual Great Pyramid? Be prepared to explain your reasoning.
- About how much taller is the Burj Khalifa than the Eiffel Tower? Explain or show your reasoning.
- Measure the line segment that shows the scale to the nearest tenth of a centimeter. Express the scale of the drawing using numbers and words.
Are you ready for more?
https://rducs.over-blog.com/2021/01/cookie51.html. The tallest mountain in the United States, Mount Denali in Alaska, is about 6,190 m tall. If this mountain were shown on the scale drawing, how would its height compare to the heights of the structures? Explain or show your reasoning.
Summary
Scale drawings are two-dimensional representations of actual objects or places. Floor plans and maps are some examples of scale drawings. On a scale drawing:
- Every part corresponds to something in the actual object.
- Lengths on the drawing are enlarged or reduced by the same scale factor.
- A scale tells us how actual measurements are represented on the drawing. For example, if a map has a scale of '1 inch to 5 miles' then a (frac{1}{2})-inch line segment on that map would represent an actual distance of 2.5 miles
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Sometimes the scale is shown as a segment on the drawing itself. For example, here is a scale drawing of a stop sign with a line segment that represents 25 cm of actual length.
The width of the octagon in the drawing is about three times the length of this segment, so the actual width of the sign is about (3cdot 25), or 75 cm.
Because a scale drawing is two-dimensional, some aspects of the three-dimensional object are not represented. For example, this scale drawing does not show the thickness of the stop sign.
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A scale drawing may not show every detail of the actual object; however, the features that are shown correspond to the actual object and follow the specified scale. Noteburner drm audio converter 2 1 8 download free.
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Glossary Entries
Definition: Scale
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A scale tells how the measurements in a scale drawing represent the actual measurements of the object.
For example, the scale on this floor plan tells us that 1 inch on the drawing represents 8 feet in the actual room. This means that 2 inches would represent 16 feet, and (frac{1}{2}) inch would represent 4 feet.
Definition: Scale Drawing
A scale drawing represents an actual place or object. All the measurements in the drawing correspond to the measurements of the actual object by the same scale.
If something is in your vicinity, it's in the surrounding area or nearby region — it's in the neighborhood, so to speak. If there's a garbage dump in your vicinity, you'll certainly smell it.
The noun vicinity evolved from the Latin vicinitas, which means 'of or pertaining to neighbors or a neighborhood.' Not until 1796 did the word expand in meaning to also describe a 'surrounding district.' Said American author Washington Irving, 'A kind heart is a fountain of gladness, making everything in its vicinity freshen into smiles.' Slang for vicinity include neck of the woods and turf.
