Key Resources is really the part that explains how you will create your value proposition. Have a think about what types of products, services, assets you may need to create your value proposition. This often includes intellectual property; this may include talent, and also may include infrastructure. Perhaps you have a website that is unique, perhaps you have offices or property that is very unique.
Key Activities are the activities that you do on a daily basis and what you need to understand is your arrow, your strengths and weaknesses to which you can play on. These may include sales and marketing, research and development, manufacturing or distribution. Perhaps even you are an app development company, or software company and you really, your core focus will be to program and develop.