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LED Bracelets 
Macrame Bracelets
Student creates an LED bracelet to practice soldering, situating an LED with the right polarity, and making a parallel circuit.
Rubric Code: K224799
By kalilambrou
Ready to use
Public Rubric
Subject: Engineering  
Type: Project  
Grade Levels: 9-12

Powered by iRubric LED Bracelet
  Redesign necessary

1 pts

Meets Most Expectations

2 pts

Meets ALL Expectations

3 pts

Manufacturing/Circuit

Redesign necessary

The LED bracelet is not finished. The circuit pattern is not easily identified or evenly made. The bracelet does not fit or close, and the overall neatness of the parallel tracks of the copper circuit are not visible, or very wrinkled.
Meets Most Expectations

The LED bracelet is finished. The circuit pattern is visible and is appropriately placed. The circuit is mostly neat, and the copper tracks are visible, but not neat, some wrinkles. Overall the bracelet fits well, and the battery position met the magnet when closed but needed adjustment.
Meets ALL Expectations

The LED bracelet is neat, clean and complete. The circuit pattern is easily identified and nicely aligned in the circuit. The LED bracelet fits well, and the overall placement of the copper tracks works well with the parallel circuit. The battery met the magnet well, and did not need adjustment.
Material Usage

Redesign necessary

Student had a difficult time using materials correctly and needed several corrections.
Meets Most Expectations

Student used materials correctly and only needed reminders once or twice.
Meets ALL Expectations

Student always used materials correctly and efficiently.
Engagement

Redesign necessary

Student needed several reminders to stay on task. Student chose not to use class time wisely.
Meets Most Expectations

Student worked independently without reminder and followed the directions for manufacturing to completion. Only needed redirecting a few times.
Meets ALL Expectations

Student engaged well throughout the project, and followed directions creating a consistently functioning LED bracelet. Student worked independently without redirecting and finished within the time frame of the project.
Soldering Technique

Redesign necessary

The LED bracelet did not function. The circuit was soldered but the connection did not work to light the LEDs. The joints were not neat or the LED prongs were not placed properly.
Meets Most Expectations

The LED bracelet did function but with flickering. The circuit was soldered but the connection did not light the LEDs evenly, but there was illumination. The joints were somewhat neat and the LED prongs were placed properly. The circuit worked when the bracelet's battery connected to the magnet, but may need adjusting.
Meets ALL Expectations

The LED bracelet functioned well each time it was worn with bright consistent lights. The circuit was soldered well with a good connection and lit the LEDs evenly. The joints were small neat dots, and the LED prongs were placed properly. The circuit worked when the bracelet's battery connected to the magnet and did not need any adjustments to remain on.





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