What is an angle?

An angle is the space between two approaching lines. In grade four we introduce angles to kids in terms of rays, when two rays share the same endpoint then what they form is known as an angle. 

Angles are the basic building blocks of geometry and vastly used in day to day jobs.

Below are the activity sheets I prepared to introduce the concept of angles to 4th graders;

Below are the links to 2nd grade and 3rd grade math pages, where you can print all the content for 2nd and 3rd grade math students;

2ND GRADE MATH CORE CURRICULUM

3RD GRADE MATH CORE CURRICULUM