Exegetical Aim: Encouragement to be wheat rather than tares.

Props: A tray, a strand or clump of good grass, and a patch of crabgrass (or weed). Try and pull up one whole system of each. Place the grass side by side in the tray so that they initially look like one system of grass.

Lesson: I have something in this tray. Can anybody tell me what it is? (grass) Is there anything strange about the grass? (response) Look at it closely; do you notice anything odd? (response) If they do not see the difference move the two clumps apart. Now do you see? (response)

This is the good grass. It's called Bermuda. And this is the bad grass. It's called crabgrass (or weeds). If you go out to your yard today (or the park) and look at the grass you will…