My first shapes: Learn all geometric shapes - Grade 3, (Paperback)

The Book of Geometric Shapes, Part Three, shows us regular and irregular shapes, for example, there are regular-shaped polygonsIt is a polygon whose sides are regular and equalThere are irregular polygons in shape, i.e. most of their sides are irregular in shape, and through this book they are recognized in detailIn the second lesson we will study the quadrilaterals, where they describe all quadrilaterals, and from here we know that the quadrilateral is a shape that contains four sides like a square and a diamond has four sides of equal lengthAs for the rectangle, it actually has four sides, but every two opposite sides are equal in lengthAnd also we recognize a parallelogram in which every two opposite sides are parallelAs for a trapezoid, in it every two opposite sides are parallel, only unequalThe book also includes many exercises in order to train them, which sharpens his visual mindIn the third lesson we will study the periphery of the regionFrom here we recognize the perimeter of any polygonAnd the perimeter is the sum of the lengths of the sides of the figure and the outer region surrounding the figureWhere we count the number of units within each shape, we get the perimeter, and so onFor example, the square we estimate the perimeter in two waysThe first way is to add the number of unitsThe second way, we multiply the length by the widthFinally, we will get acquainted with the units of measurement, including the unit of measurement for length, which is the meterAnd the unit of measure of volume is the literThe unit of weight is the kilogramRuler length measuring tools includedAs well as a regular weighing instrumentAs well as from the tools to measure the selected size includedThat is, this book will make your child master these tools and get to know them wellAt the end of each lesson there are many examples for the child to practice withIn conclusion, this book is very, very useful for your children, and good luck to all