According to Elementary Science Methods: A Constructivist Approach by David Jerner Martin, there are four major goals in elementary science: facility in the process skill, proficiency in inquiry, development of positive attitudes, and the development of children constructing their own conceptualizations. The K'nex Science Lesson Plan - Building Bridges meets these goals. The students are working with hands-on manipulatives to demonstrate proficiency of the objectives. The students must investigate to determine questions which are later answered through their own experimentation with the K'nex. Hopefully through this lesson the students will develop a positive attitude towards science by using the K'nex. Through this lesson, children will be doing science rather that just learning about it.