Yesterday, I took a free class on ICF Construction, sponsored by Fox Blocks.
ICF stands for, "Insulated Concrete Forms" - essentially, making your home a giant Yeti cooler.
The above photo is an ICF panel - it is 16" tall (it's on its side in the photo), 48" wide, and this particular one has an 8" hollow center, where strapping, rebar, and concrete will go. It replaces 6(!) cinder blocks ...