Caricamento in corso...

Where is the exit? Who is the person in front of you in your classroom? How many things did you put in your backpack? Learn how to **get your bearings**, discover the directions: **right, left, up, down, in front of, behind**. Learn the difference between **inside and outside**!

What can you draw on paper? Learn how to identify **plane shapes** and **solid shapes**. Let's make the first steps in **geometry**: learn about **lines, polygons and solids**.

What are the main elements of **plane geometry**? Discover **lines**, **half lines** and **line segments**. Learn the characteristics of **parallel lines** and **perpendicular lines**. What is an **angle**? Learn how to identify all the different types of angles.

What are **polygons**? Discover all the properties of polygons, quadrilaterals and triangles and learn to classify them by sides and angles.

When you have to solve a **geometry problem**, you are often asked to **find the perimeter and the area** of figures. In this chapter you will learn **all the formulas** that you need! Discover **the perimeter and the area of squares, rectangles, triangles, trapezoids, regular and irregular polygons**.