I have this graphic organizer set up so that students have space to give 3 reasons to support their opinion. There is also a section for students to add a supporting detail or text evidence to support their opinion. This is great to show students how to add to their writing. In the second graphic, instead of lines for the students, there is space so that students can use sticky notes to find their text evidence or supporting detail and then attach it to the graphic organizer. I used these with my 1st graders, and they did extremely well and produced phenomenal writing. It would also be great to use in 2nd or 3rd grade.
Also, see my information/explanatory template: