The mice from Mouse Count, Mouse Paint, and Mouse Shapes are at it again. Two mice are balancing on a teeter-totter made with a stick and a rock. Friends want to get into the balancing act too. As their friends join, they have to make sure both sides of the teeter-totter are the same for the stick to balance. This book teaches kids some fundamental aspect of algebra–both sides of the equation have to balance! Of course, preschooler won’t know they are learning algebra but can have making both sides equal or really balancing a scale with scales in the classroom.