Another oldie but goodie here with the extra added twist of the color spectrum. My first grade classes meet with me just after their lunches so this lesson is timed perfectly.
We watch a short video I've shared many times before ROY G BIV on Youtube -They Might Be Giants
Then we make sandwich layers. Trying to remember to have something to hold the sandwiches on the top and bottom layers.
A colorful addition to the hallways as well.