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Mystery Card 2
Administration Procedures

4th Grade Performance Task
Contributed by: New York State Education Department (NYSED)
NYS Alternative Assessment in Science Project (1996)

Description:

Students will use an electrical tester to determine where electricity flows between circles on a mystery card.

This task assesses students' abilities to observe, record, and interpret data, generalize and infer, and draw accurate diagrams.

This task is designed to take students approximately 10 minutes to complete.

Overall Task Content Area:

Physical Science

Specific Knowledge Areas:

Light, heat, electricity, and magnetism

Performance Expectations:

  • conducting investigations
  • using equipment
  • gathering, organizing, and representing data
  • formulating conclusions from investigational data
  • applying scientific principles to develop explanations

National Science Education Standards:

4 A SI 1: Abilities necessary to do scientific inquiry: Grades K-4
1.3 Employ simple equipment and tools to gather data and extend the senses. In early years, students develop simple skills, such as how to observe, measure, cut, connect, switch, turn on and off, pour, hold, tie, and hook. Beginning with simple instruments, students can use rulers to measure the length, height, and depth of objects and materials; thermometers to measure temperature; watches to measure time; beam balances and spring scales to measure weight and force; magnifiers to observe objects and organisms; and microscopes to observe the finer details of plants, animals, rocks, and other materials. Children also develop skills in the use of computers and calculators for conducting investigations.

1.4 Use data to construct a reasonable explanation. This aspect of the standard emphasizes the studentsí thinking as they use data to formulate explanations. Even at the earliest grade levels, students should learn what constitutes evidence and judge the merits or strength of the data and information that will be used to make explanations. After students propose an explanation, they will appeal to the knowledge and evidence they obtained to support their explanations. Students should check their explanations against scientific knowledge, experiences, and observations of others.

4 B PS 3: Light, heat, electricity, and magnetism: Grades K-4
3.3 Electricity in circuits can produce light, heat, sound, and magnetic effects. Electrical circuits require a complete loop through which an electrical current can pass.

(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:

AL3: Use mathematical models to represent and understand quantitative relationships:
Grades pre K-5 b. model problem situations with objects and use representations such as graphs, tables, and equations to draw conclusions.

REP1: Create and use representations to organize, record, and communicate mathematical ideas:
Grades pre K-5

General Instructions to the Teacher:

This task is designed to take most students 10 minutes to complete.

Students will be working individually for the experiment/activity part of this exercise.

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 "Mystery Card 2":

The teacher will need:

  • 4" X 6" index cards
  • heavy duty foil
  • hole punch
  • masking tape
  • permanent black marker
  • heavy duty, clear packing tape

At each station students will need:

  • 1 D-cell battery
  • 1 battery holder
  • 3 - 6" wires with alligator clips
  • 1 flashlight bulb (1 or 1.5 volts)
  • 1 bulb holder
  • 1 circuit card

Advance Preparation:

Constructing a circuit card:

  • The circuit card can be made by taping aluminum foil (heavy duty) between two 4" X 6" or 5" X 8" index cards or between pieces of thin cardboard. You can use old folders or poster board too. It is better to use colored index cards rather than white because they are not as see through.
  • Punch holes for the terminals and label on one of the index cards. A standard size hole punch is large enough.

Index card #1

  • Cut a piece of aluminum foil large enough to fit over the top of the six terminals. Heavy duty aluminum foil works the best.
  • Cut out the bottom corner of the aluminum foil so that terminal "D" is not connected to the other terminals.
  • Tape the foil securely to the index card.
  • It is important to put foil over all of the terminals because it is visible in each of the holes.
  • Be sure that you do not put tape over the top of the terminals or the test card will not work properly.

Index card #2

  • Tape the two index cards together on all four sides so that it cannot be taken apart easily. Heavy duty packing tape works really well for this.

Simple Circuit:

  • Connect wires, bulb, and battery to form an electrical tester (see diagram on student task sheet).
  • Be sure that all of the electrical testers and mystery cards are in good working condition before students begin the task.
  • It may be necessary to use two (2) batteries in order for the bulbs to light sufficiently.

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 and Modifications:

  • Mystery Card 1and Mystery Card 3
  • Task does not easily lend itself to including mathematical criteria in the rubric.

 


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