Learners read a general description of the function and structure of leaves and examine drawings and microscopic views. A matching exercise completes the learning object.
In this animated object, learners view hydrogen and hydroxide ions in a solution. A brief quiz on the basic principles of the term pH completes the activity.
Learners view several movie clips that demonstrate the use of an indicator to follow the neutralization reaction that occurs when an acid and a base are mixed. Students test their knowledge in a series of questions. Immediate feedback is given.
Users calculate the tonnage required to punch holes in a specific base metal. The formula to be used is provided along with the tensile strength for various metals. A calculator is required.
In this animated and interactive object, learners use a memory device to identify NPN and PNP transistors. Learners also examine how much the transistors turn on when the voltage applied to the base is varied.
Instructors complete a simple, informal inventory that helps them to see how they use the Seven Principles of Good Practice in Undergraduate Education developed by Chickering and Gamson (supported by AAHE, ACE, Johnson and Lilly foundations) in 1987.