Do you use "might" in the first conditional?
Yes, you do.
Say the negative form in the present simple.
Subject + DON'T/DOESN'T + Verb + Complement
Do you use "will" in the zero conditional?
No, you don't.
Zero or first? You get a penalty if the opponent hits you inside the area.
Zero (always true, present simple+present simple)
Say the affirmative form in the present simple.
Subject + Verb (S with he,she,it) + Complement
In a zero conditional sentence, tell the class about a rule to play volleyball.
For example: If you touch the net, you lose a point.
Complete this zero conditional: If you hit a player, ...
For example: you get a yellow card. (Present simple)
Complete this first conditional: If you don't like sports, ...
For example: you might try to walk more. (might or will)
In a zero conditional sentence, tell the class about a rule to play soccer.
For example: If you score more goals, you win the game.
What conditional is used for THINGS THAT ARE ALWAYS TRUE?
Zero conditional
Complete this zero conditional: You need a club if ...
For example: you want to play golf. (Present simple)
In a first conditional sentence, tell the class about sports at school.
For example: If you have P.E., you will have fun.
Zero or first? If you exercise a lot, you will run faster.
First conditional (present simple+will)
Zero or first? You might like badminton if you try it.
First ("might", possibility)
Why is the present simple important for the zero and first conditional?
Because the zero conditional needs present simple in both parts, and the first conditional needs present simple after IF.
Complete this first conditional: You will feel better if ...
For example: you take up a sport. (Present simple)
What conditional is used for REAL POSSIBILITIES?
First conditional