For those of you writing thank-you notes to teachers, here are a few passages from Scripture that might encourage those who teach (at least they've encouraged me over the years). Feel free to use these in cards or notes as you pray for or encourage your teachers!
Psalm 1:2-3 (NIV)
But his delight is in the law of the Lord,
and on his law he meditates day and night.
He is like a tree planted by streams of water,
which yields its fruit in season
and whose leaf does not wither.
Whatever he does prospers.
Psalm 37:31 (NIV)
The law of his God is in his heart;
his feet do not slip.
Jeremiah 17:8 (NIV)
He will be like a tree planted by the water
that sends out its roots by the stream.
It does not fear when heat comes;
its leaves are always green.
It has no worries in a year of drought
and never fails to bear fruit."
Matthew 25:21 (NIV)
"His master replied, 'Well done, good and faithful servant! You have been faithful with a few things; I will put you in charge of many things. Come and share your master's happiness!'
1 Corinthians 15:58 (NIV)
Therefore, my dear brothers, stand firm. Let nothing move you. Always give yourselves fully to the work of the Lord, because you know that your labor in the Lord is not in vain.
Galatians 5:22-23 (NIV)
But the fruit of the Spirit is love, joy, peace, patience, kindness, goodness, faithfulness,  gentleness and self-control. Against such things there is no law.
Ephesians 1:16 (NIV)
I have not stopped giving thanks for you, remembering you in my prayers.
Ephesians 3:16-19 (NIV)
I pray that out of his glorious riches he may strengthen you with power through his Spirit in your inner being,  so that Christ may dwell in your hearts through faith. And I pray that you, being rooted and established in love,  may have power, together with all the saints, to grasp how wide and long and high and deep is the love of Christ,  and to know this love that surpasses knowledge--that you may be filled to the measure of all the fullness of God.
1 Thessalonians 1:2 (NIV)
We always thank God for all of you, mentioning you in our prayers.
1 Thessalonians 5:24 (NIV)
The one who calls you is faithful and he will do it.
2 Thessalonians 1:3 (NIV)
We ought always to thank God for you, brothers, and rightly so, because your faith is growing more and more, and the love every one of you has for each other is increasing.
1 Timothy 4:11 (NIV)
Command and teach these things.
2 Timothy 2:2 (NIV)
And the things you have heard me say in the presence of many witnesses entrust to reliable men who will also be qualified to teach others.
1 Peter 4:10 (NIV)
Each one should use whatever gift he has received to serve others, faithfully administering God's grace in its various forms.
3 John 1:3 (NIV)
It gave me great joy to have some brothers come and tell about your faithfulness to the truth and how you continue to walk in the truth.
Whatever you end up saying (or writing), you can be certain your teachers will appreciate your affirmation, perhaps in ways you can't even begin to imagine. Thanks for taking the time to offer a pat on the back and a humble "thank you" to those who teach!
Blessings to you,