Grade 58 Performance Task
Assessment of Performance Unit
1989 Administration
Description:
Students estimate the mass, volume, length and area of various objects.
The task assesses students' abilities to make simple observations
and estimations.
This task is designed to take students approximately 1015 minutes
to complete.
Overall Task Content Area:
 Physical Science
Specific Knowledge Areas:

Performance Expectations:
 applying scientific principles to develop explanations and solve
new problems
National Science Education Standards:
8 A SI 1: Abilities necessary to do scientific inquiry:
Grades 58
1.3 Use appropriate tools and techniques to gather, analyze,
and interpret data. The use of tools and techniques, including mathematics,
will be guided by the question asked and the investigations students
design. The use of computers for the collection, summary, and display
of evidence is part of this standard. Students should be able to
access, gather, store, retrieve, and organize data, using hardware
and software designed for these purposes.
8 B PS 1: Properties and changes of properties
in matter: Grades 58
1.1 A substance has characteristic properties, such as density,
a boiling point, and solubility, all of which are independent of
the amount of the sample. A mixture of substances often can be separated
into the original substances using one or more of the characteristic
properties.
(Use the "hot" link on the PALS home page
to check the full text of related National Science Education Standards,
if desired.)
National Council of Teachers of Mathematics:
MEAS1: Understand measurable attributes
of objects and the units, systems, and processes of measurement:
Grades 68 understand, select, and use units of appropriate
size and type to measure angles, perimeter, area, surface area,
and volume
MEAS2: Apply appropriate techniques, tools,
and formulas to determine measurements:
Grades 68 select and apply techniques and tools to accurately
find length, area, volume, and angle measures to appropriate levels
of precision
NO2: Understand meanings of operations and
how they relate to one another:
Grades 68 h. understand the meaning and effects of arithmetic
operations with fractions, decimals, and integers
NO3: Compute fluently and
make reasonable estimates:
Grades 68 j. select appropriate methods
and tools for computing with fractions and decimals from among mental
computation, estimation, calculators or computers, and paper and
pencil, depending on the situation, and apply the selected methods
GEO4: Use visualization, spatial reasoning,
and geometric modeling to solve problems:
Grades 68 l. use twodimensional representations
of threedimensional objects to visualize and solve problems such
as those involving surface area and volume
PS3: Apply and adapt a variety of appropriate
strategies to solve problems:
Grades 68
Grades 68
General Instructions to the Teacher:
This task is designed to take students approximately 1015 minutes
to complete.
Students will be working individually during this exercise.
Students should be ready to work as soon as the period begins.
The materials should be set out at each lab station, if possible.
A central supply area, if needed, should be easily accessible. All
supplies should be clearly labeled.
Materials for Estimating:
The teacher will need:
 graduated cylinder
 metric ruler
 balance
 spring force measurement device
 labels
 food color
 large container of water
 green construction paper
 scissors
 wire
 wire cutters
 string
At this station students should have:
 Plastic box with colored water labeled "C"
 Green paper leaf labeled "L"
 Wire circle
 Rubber ball labeled "B"
 Tube with water labeled "T"
 Container labeled "C"
 Wooden rod
 Package labeled "P"
Advance Preparation:
 Label plastic boxes "C." Use graduated cylinder to fill boxes
with a predetermined amount of colored water (add food coloring).
 Cut leave shapes out of green construction paper and determine
the area. Label leaves "L."
 Form circles from wire of a predetermined length.
 Label balls "B."
 Label tubes "T." Use a graduated cylinder to fill tubes with
a predetermined amount of water.
 Tie a string around packages leaving a loop by which to lift
the package. With spring force device, determine amount of force
necessary to lift the package by the string.
Safety:
 Be careful.
 Teachers and students should always exercise appropriate safety
precautions and utilize appropriate laboratory safety procedures
and equipment when working on science performance tasks.
Extensions/modifications:
 To target the specific NCTM standard(s) to be measured:
 Ask students to select appropriate computation methods.
 Ask students to draw twodimensional representations of
the objects.
