:salamext:
ayan, i don't think you should discuss the misconceptions much, but focus on Allah the most, and the Messengers' and the next life.
Now you might wonder how thats a misconception, and how you'll get graded for it. But you can explain to them that i believe you have some misconceptions about what Islam truly is.
So you'll start by telling them what we believe;
We believe in Allah, who is One God, without any partners, sons, or daughters. He is Perfect in every way, and created us all for a purpose, and that purpose is to apply His laws on earth - to unite mankind on goodness.
So He sends us Messengers' who are humans like us - who bring the best guidance from Him, and they do miracles by the will of God which no other human can do, to show people that they really are Messengers' of God. We believe thousands of Prophets came to different nations and called them to God's obedience, so that if they did good - God would give them more good, and if they did evil - God would punish them for their evil against themselves and humanity. Tell them we believe in Prophet Adam, Noah, Abraham, Moses, Jesus, Muhammad (peace be upon them all), and that the final Prophet is Prophet Muhammad. The Qur'an was revealed to him and it contains the best source of guidance in ALL aspects of life, whoever follows it will be successful, and whoever denies it - misses on alot of good. It gives mention of the people before us, those in our time, and warns of what will happen in the future.
The Qur'an warns mankind when they will be brought back to life by God/Allah on the Day of Judgment, and be told what they did in this life - if they believed in God and His Messengers', and did good - they will be rewarded, but if they denied and argue that God and His Messengers' have lied, then they will be punished for their own evil. Every person will be responsible for their own selves, and no-one will be dealt with unjustly. Those who believe and do good will be in Gardens of Delight, and the evildoers will be in Hell, because of what they themselves used to do.
They might question whether that's really a misconception, but tell them that Islam is the most misunderstood religion in the world - so i wanted to tell you what it really is, instead of what the media tells you.
It might be that Allah guides alot of people through you. This is your opportunity, so go for it and make dua' to Allah that he makes you successful.