129 first- and second-grade students were individually tested on 13 measurement and conservation items. Contrary to Piaget's conclusions, children in the earliest stages of development of conservation ...

Your child can build an understanding of addition, subtraction, and the other math concepts they are learning in first grade by playing with everyday objects. Use items that your child enjoys ...

Question sparked debate and confusion, with one user stating they were "honestly shocked" this was being asked of a first-grader.