As you examine how constructivism be used in an integrated approach to teaching science and math, it is a theory that applies, I feel, to all content areas and all levels of learning. Since it emphasizes the need for instruction to be student-centered and all learning activities to be active, there are many parallels for interdisciplinary connections.
For example, you might show how one of my favorite consultants, Marilyn Burns, uses holistic, constructivist approaches to teach math. She uses literacy such as dialogue writing and journals to allow kids to make their own meaning with math, instead of merely "drill and kill" traditional worksheets of the past. Her rationale for using writing to connect to math and this theory is that "When children are asked to explain ...
The use of constructivism is demonstrated briefly through practical examples in science and math. It is presented as a guide.