PLTW IED 2026 PROBLEM SOLVING AND
MODELING PRACTICE EVALUATION
RESOURCE PACK
◉ Why do designers need to fully dimension a part?
Answer: A fully dimension part is required to communicate clearly
how the part is to be constructed.
◉ What does it mean when a sketch is over dimensioned?
Answer: A sketch is over dimensioned when the same
measurement/dimension is on 2 or more of the views: such as the
over all width is placed in both the front and top views. This can
cause confusion and increase the probability of the part being
constructed incorrectly
◉ A graph of vertical bars representing the frequency distribution of
a set of data is called
Answer: Histogram
◉ Collection of methods for planning experiments, obtaining data,
organizing, summarizing, and presenting, analyzing, interpreting,
and drawing conclusions based on data.
Answer: Statistics
,◉ The _______________ is a measure of the spread of data values
Answer: Standard Deviation
◉ A function that represents the distribution of variables as a
symmetrical bell-shaped graph.
Answer: Normal Distribution
◉ The value that occurs most frequently in a given data set
Answer: Mode
◉ The __________________ is the difference between the largest and
smallest values that occur in a set of data.
Answer: Range
◉ A measure of center in a set of numerical data
Answer: Median
◉ The digits in a decimal number that carry meaning contributing to
the precision or accuracy of the quantity
Answer: Significant Digits
, ◉ What is Central Tendency?
Answer: It s the Center of a distribution: Mean, Median or Mode.
◉ A full-scale working model used to test a design concept by
making actual observations and necessary adjustments.
Answer: Prototype
◉ A measuring instrument having two adjustable jaws typically
used to measure distance or thickness
Answer: Calipers
◉ What is the role of models in the design process?
Answer: Provides a visual for all to see and helps them to see the
viability of the idea
◉ How can we use technology to make the design and manufacture
of a product more efficient and less prone to error?
Answer: Allows us to investigate the properties digitally before it is
built physically
◉ What is the purpose of a portfolio? How do you decide what
information to include in a portfolio
Answer: The Purpose of a portfolio is to effectively communicate the
details of a project. Title page, working technical drawings and an
MODELING PRACTICE EVALUATION
RESOURCE PACK
◉ Why do designers need to fully dimension a part?
Answer: A fully dimension part is required to communicate clearly
how the part is to be constructed.
◉ What does it mean when a sketch is over dimensioned?
Answer: A sketch is over dimensioned when the same
measurement/dimension is on 2 or more of the views: such as the
over all width is placed in both the front and top views. This can
cause confusion and increase the probability of the part being
constructed incorrectly
◉ A graph of vertical bars representing the frequency distribution of
a set of data is called
Answer: Histogram
◉ Collection of methods for planning experiments, obtaining data,
organizing, summarizing, and presenting, analyzing, interpreting,
and drawing conclusions based on data.
Answer: Statistics
,◉ The _______________ is a measure of the spread of data values
Answer: Standard Deviation
◉ A function that represents the distribution of variables as a
symmetrical bell-shaped graph.
Answer: Normal Distribution
◉ The value that occurs most frequently in a given data set
Answer: Mode
◉ The __________________ is the difference between the largest and
smallest values that occur in a set of data.
Answer: Range
◉ A measure of center in a set of numerical data
Answer: Median
◉ The digits in a decimal number that carry meaning contributing to
the precision or accuracy of the quantity
Answer: Significant Digits
, ◉ What is Central Tendency?
Answer: It s the Center of a distribution: Mean, Median or Mode.
◉ A full-scale working model used to test a design concept by
making actual observations and necessary adjustments.
Answer: Prototype
◉ A measuring instrument having two adjustable jaws typically
used to measure distance or thickness
Answer: Calipers
◉ What is the role of models in the design process?
Answer: Provides a visual for all to see and helps them to see the
viability of the idea
◉ How can we use technology to make the design and manufacture
of a product more efficient and less prone to error?
Answer: Allows us to investigate the properties digitally before it is
built physically
◉ What is the purpose of a portfolio? How do you decide what
information to include in a portfolio
Answer: The Purpose of a portfolio is to effectively communicate the
details of a project. Title page, working technical drawings and an
