Forgive my mommy brain but I'm having a hard time figuring this out! We haven't used daycare until now, so I'm really not familiar with the FSA and my District isn't so helpful either!

My district allows $5,000/year to go into an FSA for daycare. Daycare for my kids is costing $1500/month. What's the best way to take advantage of the FSA? Have the district deduct the same amount per paycheck for my 12 months of pay, up to $5000? (So $416/month)? And then take the money from my FSA account only once a year? Or do I submit a claim for the $416 every month? And in the long run, this is only helping me cut down on my taxable income right? So in theory I'd have to be paying the $1500/month out of pocket plus the $416/month would be taken off the top of my paycheck? Sorry if this is all over the place---I'm so confused & no one at work can seem to explain it!!!