|
Grades 9-12 Performance Task
Contributed by: Assessment of Performance Unit (APU)
1985 Administration
Description:
Students observe the effects various weights have on the movement
of a wig-wag apparatus. The task assesses students' abilities to make
simple observations and make generalized inferences from their observations.
This task is designed to take students approximately 10-15 minutes
to complete.
Overall Task Content Area:
- Physical Science
Specific Knowledge Areas:
-
Performance Expectations:
- conducting investigations
- using equipment
- formulating conclusions from investigational data
National Science Education Standards:
12 A SI 1: Abilities necessary to do scientific inquiry:
Grades 9-12
1.4 Formulate and revise scientific explanations and models
using logic and evidence. Student inquiries should culminate in
formulating an explanation or model. Models should be physical,
conceptual, and mathematical. In the process of answering the questions,
the students should engage in discussions and arguments that result
in the revision of their explanations. These discussions should
be based on scientific knowledge, the use of logic, and evidence
from their investigation.
12 B PS 4: Properties and changes of properties in matter:
Grades 9-12
4.1 Objects change their motion only when a net force is
applied. Laws of motion are used to calculate precisely the effects
of forces on the motion of objects. The magnitude of the change
in motion can be calculated using the relationship F=ma, which is
independent of the nature of the force. Whenever one object exerts
force on another, a force equal in magnitude and opposite in direction
is exerted on the first object.
(Use the "hot" link on the PALS
home page to check the full text of related National Science
Education Standards, if desired.)
General Instructions to the Teacher:
This task is designed to take students approximately 10-15 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 :
At this station students should have:
- Wig-wag apparatus attached to desk or table
- Three blocks of various weight
Advance Preparation:
- Set up wig-wag apparatus
- Label weights with blue sticker on heaviest block, red sticker
on middle weight block, and yellow sticker on the lightest block.
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:
|
