I'm new to Magic: The Gathering game, so not familiar with the rules yet.

The person who taught me says land cards do not enter tapped, unless the card says otherwise, meaning I can have land enter the battlefield, tap it and use it to summon a creature into the battlefield.

According to others I played with, ALL CARDS enter tapped, even basic land, and says I have to wait until my next upkeep to untap, then re-tap the mana in order to use it for entering a creature. Which is correct?

I'm new to Magic: The Gathering, so I am not familiar with the rules yet.

The person who taught me says land cards do not enter tapped, unless the card says otherwise, meaning I can have land enter the battlefield, tap it and use it to summon a creature onto the battlefield.

According to others I played with, ALL CARDS enter tapped, even basic land, and says I have to wait until my next upkeep to untap, then re-tap the mana in order to use it for summoning a creature. Which is correct?

I played over the last weeks (I'm 100% new) and here we are:the person who taught me says land cards do not enter tapped unless the card says otherwise, meaning I can have land enter the battlefield, tap it and use it to enter a creature to enter the battlefield. According to others I played with, ALL CARDS enter tapped, even basic land, and says I have to wait until my next upkeep to untap, then re-tap the mana in order to use it for entering a creature. What is correct?

I'm new to Magic: The Gathering game, so not familiar with the rules yet.

The person who taught me says land cards do not enter tapped, unless the card says otherwise, meaning I can have land enter the battlefield, tap it and use it to summon a creature into the battlefield. 

According to others I played with, ALL CARDS enter tapped, even basic land, and says I have to wait until my next upkeep to untap, then re-tap the mana in order to use it for entering a creature. Which is correct?