In your first 3 lessons this year you will be learning some fundamental CAD skills (Computer Aided Design). For all of the projects in Year 9 you will need some CAD profficinecy which is why you cover it at the start of the year. You will be using some software called Onshape. The first step (in you haven't already) will be to create an 'Education Account' and then follow through the videos linked below at your own pace.