Hi there Harry Song😀,

Here is how to find a practice task! First you click on courses. Secondly, you click on a subject where there are questions(Math, Science, Arts and Humanities, and Economics and Finances). Once you have clicked on any of those subjects, you will find that inside those subjects there are different "chapters" of that specific subject. Once you have clicked on one of those,  you will find that there are two sections(Learn and Practice). Once you finish 5 of those practices, you will get that badge that you want! I really hope that this helped you.

Hope this helped,

TheUnderratedProgrammer.

Thank you!