I use these Powerpoint slides to create consistency in my NGSS classroom. I find the students do very well with developing models, communicating ideas, engaging in productive scientific argumentation, and revising models when they have a predictable structure within the classroom. I use this Powerpoint to lead my students through the phenomena modeling process and it has proven to be very effective. I have it set up in a way that allows me to easily edit the slides to document and guide students along the way. When we move onto a new phenomena, I simply save the document, delete the old information and set up a new phenomena to investigate. I decided to leave the "weathering" phenomena slides full so you can see how my Powerpoint looks when I start a new phenomena. I fill in the "Lego Tool Box" and add pictures of student model examples to the slides as they make them. This allows me to let my students erase their white boards so they are ready for the next class. I hope you enjoy. It has made my life much easier.