Greeting! My Name is Sir Mhuddy T. Dagatan I am your Elementary computer teacher. Welcome to my website please be informed that you are going to take the weekly test and that is every Friday. I highly recommend to download the PowerPoint presentation for your references. I created this website is for you to have all the information that you may mis-out during our face to face discussion. Feel free to click the link below for you to download the learning materials. Lesson 4 - Operating System, Windows and Desktop (please click the link below.) Grade 1 Click here 👈 Grade 2 Click here 👈 Grade 3 Click here 👈