1.2 PLTW Vocabulary

Dimensioning

• Measurement in length, width, and depth.

• The amount of space, measured in cubic units, that an object or substance fills.

• The total area of the surface of a three-dimensional object.

• The extent to which a given measurement agrees with the standard value for that measurement.

Accuracy

• Measurement in length, width, and depth.

• The amount of space, measured in cubic units, that an object or substance fills.

• The total area of the surface of a three-dimensional object.

• The extent to which a given measurement agrees with the standard value for that measurement.

Surface Area

• Measurement in length, width, and depth.

• The amount of space, measured in cubic units, that an object or substance fills.

• The total area of the surface of a three-dimensional object.

• The extent to which a given measurement agrees with the standard value for that measurement.

Volume

• Measurement in length, width, and depth.

• The amount of space, measured in cubic units, that an object or substance fills.

• The total area of the surface of a three-dimensional object.

• The extent to which a given measurement agrees with the standard value for that measurement.

Isometric Sketch

• A sketch in which an object’s parallel edges are drawn with parallel lines, typically at 30-degree angles to the horizontal baseline.

• A preliminary visual of a possible idea for a design. Most thumbnail sketches are not full size and have little detail.

• A sketch typically including three primary views of an object that are drawn using orthographic projections

Multiview Sketch

• A sketch in which an object’s parallel edges are drawn with parallel lines, typically at 30-degree angles to the horizontal baseline.

• A preliminary visual of a possible idea for a design. Most thumbnail sketches are not full size and have little detail.

• A sketch typically including three primary views of an object that are drawn using orthographic projections

Thumbnail Sketch

• A sketch in which an object’s parallel edges are drawn with parallel lines, typically at 30-degree angles to the horizontal baseline.

• A preliminary visual of a possible idea for a design. Most thumbnail sketches are not full size and have little detail.

• A sketch typically including three primary views of an object that are drawn using orthographic projections

Hatch Marks

• (also called a tick mark) A form of math notation or a mark to indicate a unit of measurement.

• Observing the operation of a device and describing its function and design specifications.

• A change or improvement designed to produce optimal accuracy and function.

• The degree to which the correctness of a quantity is expressed.

Precision

• (also called a tick mark) A form of math notation or a mark to indicate a unit of measurement.

• Observing the operation of a device and describing its function and design specifications.

• A change or improvement designed to produce optimal accuracy and function.

• The degree to which the correctness of a quantity is expressed.

Modification

• (also called a tick mark) A form of math notation or a mark to indicate a unit of measurement.

• Observing the operation of a device and describing its function and design specifications.

• A change or improvement designed to produce optimal accuracy and function.

• The degree to which the correctness of a quantity is expressed.