Assignments completion data display for teachers

I am a teacher in the New York City public schools and I serve a low income community who does not have a lot of access to academic help. For the past four years, I have been assigning Khan Academy to great success, thank you!! However, this year the website removed the option in which I could see how much time they spent on Khan Academy. I tried assigning specific skills to my students, about 20 skills per week, but it is impossible for me to grade it given the way you show me the data. I cannot grade 20 individual assignments times 90 students. This requires I count 1,800 boxes every week. It would take me endless hours. Therefore, I’m very sad that I can no longer use the website. I am only using for extra credit and nobody’s doing it for no grade. This is such an important and powerful website that could really change my students skills, but they are not doing it because it is too heard for me to grade it. Would you please allow teachers to create a bundle of assignments due in a given date (and hopefully save the bundle to re-assign to a different class in the next year) and Khan Academy counts how many in the bundle students have completed and average out the scores for us? We cannot physically grade individual assignments when we assign 20 of them in one week to 90 students. Is there anyone else I can contact to bring up the problem? I am very upset I cannot use Khan Academy anymore. My students need it! Thank you, Letícia Ribeiro 6th grade Math Teacher at IS5 - Maspeth, Queens, NYC.