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Light Just Right
out of 5 stars
13 Jun 2013 | Contributor(s):: James Daniel Lehman
This 4th grade design activity focuses on electrical current and resistance. Students design a way to make a bulb light with differing brightnesses.
Design of a Door Alarm
10 Jun 2013 | | Contributor(s):: David C Eichinger, Erin K Doherty, James Daniel Lehman, Venkatesh Merwade
This grade 4 design task helps students learn about simple circuits by designing a door alarm.