Thinking Routines Matrix Thinking Routines Matrix: Project Zero from the Harvard Graduate School of Education has put together a document called “Thinking Routines Matrix”. Included are 20 routines divided into three sections: 1. Introducing & Exploring Ideas 2. Synthesizing & Organizing Ideas 3. Digging Deeper into Ideas. You can access the Matrix by clicking here. Previous Post A Mind Spread Out on the Ground Next Post General Questions to Spark Discussion