All this icons are from this Creators

<a href="https://www.flaticon.com/free-icons/exam" title="exam icons">Exam icons created by Freepik - Flaticon</a>

<a href="https://www.flaticon.com/free-icons/assignment" title="assignment icons">Assignment icons created by Vector Squad - Flaticon</a>

<a href="https://www.flaticon.com/free-icons/sticky-note" title="sticky note icons">Sticky note icons created by Muhammad_Usman - Flaticon</a>

<a href="https://www.flaticon.com/free-icons/school" title="school icons">School icons created by itim2101 - Flaticon</a>

<a href="https://www.flaticon.com/free-icons/study" title="study icons">Study icons created by yaicon - Flaticon</a>