There’s more to preschool math than counting! Children ages 3-5 may wonder about measuring many things – from how tall they are to how long it takes to walk around the play ground. They hear adults talking about miles, pounds, gallons, acres and minutes. They see adults using measuring tools. Measurement activities can help young children understand basic math skills. They also hone their ability to compare and contrast objects, an important precursor to geometry. For this activity, we practiced sorting unicorn horns. Using their thinking minds, students placed larger horns at the top of the tray and smaller ones at the bottom.