![By jjron (Own work) [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0/)], via Wikimedia Commons](https://cs193p.m2m.at/wp-content/uploads/2015/02/cs193p-Project-2-Assignment-2-Task-3-825x510.jpg)
Please note, this blog entry is from a previous course. You might want to check out the current one.
Your UI should always be in sync with your Model (the CalculatorBrain).
… meaning we should reflect changes in the model in the UI … we will do that, too.
