tip the balance , also: tip the scales
tilt the balance , also: tilt the scales

"We may be able to tip the balance by teaching them."

It was the last few words which tipped the balance.

Could that tip the balance between thought and action in the mind of an unstable individual?

"This is the first time in 10 years we have a chance of tipping the balance."

The nature of his choice or the terms in which it is expressed may then tip the balance.

The thought or feeling tipped the balance, made the difference.

It was a simple thing that finally tipped the balance in her mind.

Is the anything folks can suggest that could tip the balance toward one or the other?

It was all he could think to do to tip the balance in his favor.

What may help tip the balance for some consumers are the environmental benefits.