Here is quick lesson plan idea for teaching the edible parts of plants. I have included a narrative writing prompt on the back to integrate writing and science.
The charting meets several CCSS for math and NGSS for science. In addition this is great for challenging and motivating students to add more nutritious plants to their diet or try new foods they might not otherwise. This would make a great collaborative morning meeting plan to share their results and create class charts/data to analyze as well.
I would use this activity after reading Tops & Bottoms by Janet Stevens.