youtube This video sings about squares, circles, and triangles and counts their sides. Math Shapes/Geometry Video 1st Pre-K/Kinder Related Resources Learn to Count/Basic Addition Song and Viceo Introduce or review basic addition and counting with an engaging song and video. Students will learn key math vocabulary and foundational number skills in an enjoyable format. View Resource → Explore Area and Perimeter with the Phet Simulation and Game Students actively explore area and perimeter with a Phet simulation, building shapes to meet criteria. They advance through math challenges and a game, including fractions. View Resource → Area and Perimeter Reteach Worksheet Students calculate areas of irregular and combined shapes. They solve word problems, find unknown side lengths, and create rectangles with the same area but different perimeters. View Resource → Sesame street teaches subtraction Engage your K-2 students with a fun, elementary video. They will learn basic subtraction concepts through entertaining Sesame Street characters, building foundational math skills interactively. View Resource →