You can download the poster from Scribd or from my TpT store ... free!
In my classroom, I enlarged the chart and posted it at the front of the room. For students who struggled with the concept more than others, I created a handout of the chart and asked them to keep it in their notebook for reference. In the coming year, when I review combining like terms, I'll bring fruit to the classroom! Last year, I just used pictures. But I think if we handle the fruit, it will help the concept to sink in!
How do you make challenging concepts concrete for students?