Instruct: Classify a review into positive or negative sentiment.
Query: Great sorting board!

I love, love, love Plan Toys! This stacker is great. I love that there are different shapes (as opposed to a typical ring shaped stacker). The shapes have a certain number of holes in them, that only fit the corresponding number of pegs on the board. It is definitely a challenge for younger toddlers. The pieces and board are the perfect size for little hands. This introduces shapes, colors, and also very introductory math skills. I think that there is a ton of education in this toy & would not hesitate to buy it again. It is well made and it is definitely one that can be saved for the grandchildren!