The Colour Tablets are sensorial materials found in the Montessori 3-6 classroom. They assist with visual discrimination and perception of colours. They come in three boxes, Box One, Box Two and Box Three. The child moves progressively through the boxes starting with Box One. Box Three (as pictured) contains 63 colour tablets in seven graded shades of nine colours. I needed a bit of colour in my life today and these images are too beautiful not to share. Here are a few examples of the Colour Tablets, Box Three being used and a few extension ideas!
Colour box three extension ideas from Pinterest (this board has a couple of other ideas).
If you are interested in the Colour Tablets, Box Three, there is a nice DIY here at Planting Peas, a free printable version at Montessori Album, Montessorium has a colour app and they are available at most Montessori material suppliers (in Australia here).