She noticed all the social media posts about hacking food waste so she challenged her students to see if they could reproduce the results of the online personalities. They tested: pumpkins, celery, garlic, green onions, bell peppers, strawberries, and mushrooms. They were able to propagate the first four but the last three didn't make.
Not only is what they did creative, it is also great they didn't have 100% success. Failure is a part of every process and not necessarily a sign of poor work or a bad idea. Sometime plants, animals, and even machines just won't do what we want them to.
You could take this activity a step further with greenhouse plants. If you are growing poinsettias, then try and propagate the tips you pinch. Take some cuttings from landscape plants around school or just in town and see if you can root them with rooting hormone. Be willing to give everything a try and then be just as okay with have 0%. Your students will learn about failure and from your example.
If you need some more ideas for plant science take a look at Design Your Own Desktop Greenhouse Activity and see if this fits with your class. If you are anything like me, then you can always use another idea. Also, step over to our Plant Science curriculum page and see what lessons work for you.