This video shows how to take a picture of classwork and upload it using the Google Classroom app on a smartphone or tablet. https://youtu.be/wAmNfVxvOQs
You have to click Turn in twice. After clicking the Turn in button at the top-right, another pop-up window will ask for confirmation and have you click Turn in again.
Click the Google Classroom app. Then, click the Classwork link at the top. From this screen, you will see Materials with an icon on the left that looks like page with a ribbon or bookmark in the upper left.
Your teacher may have organized your materials into sections. Scroll and look for that.
Finally, new teachers to Google Classroom occasionally attach Materials to their Announcements.
Briefly, in the View Assignment page, look to the right. Select "+Add ro Create" then scroll down to "File". Paste the link for the video there. Turn in (twice!)
Let your teacher know you can't view the video by sending an email, or a message in your Google Classroom Stream. Sometimes the videos work on computers but not on iPads.
Please see the Kami video above.