How do you get children to do things they don't like/want to do without them whining or throwing a tantrum?

make it fun example if u want them to pick up make it a race for young kids i usually say the one who cleans the most gets a cheerio which works well for the 2-3 yr olds i teach

Its perfectly natural for all of us as kids to rebel at doing things we don't want to do.

That is acceptable, but in my opinion 'whining and throwing a tantrum' is a very considered action on their part  to get so much on your wick that you will relent simply for the sake of peace.    I really consider that this sort of calculated behaviour from a child is totally out of order, and would consider appropriate treatment of a type that he\she would never forget, and never  ever be tempted to adopt that sort of behaviour ever again.

Here are some ideas that may help:

Give plenty of positive attention. ...

Try to give toddlers some control over little things. ...

Keep off-limits objects out of sight and out of reach. ...

Distract your child. ...

Help kids learn new skills and succeed. ...

Consider the request carefully when your child wants something.

You just give them a list of chores to do and if they whine or throw a tantrum..........you punish them...................and then give them even more chores to do.   Sooner or later they will stop their bad behavior.

Consider trying to set a good example for them to follow.  Make it a point to show them you do things you don't want to do each time you do.  Then explain why you do so.  You may have to do so over and over because children learn by repetition.

By making it clear to the child or children that there is a specific time limit for each task, and that there will be penalties for non-compliance. The penalties should fit the nature of the offense, and they should NOT BE physically PAINFUL. Inflicting pain does NOTHING to change behavior, and in fact, it can make bad behavior WORSE.

Once time limits for chores have been set, follow through when infractions occur.

Read the parenting books! Especially perhaps “How to Talk so Kids will Listen and Listen so Kids will Talk” by Adele Faber and Elaine Mazlish