Length+and+perimeter_ella

To achieve my learning goal(s), I must learn:

 * ====how to calculate the area of non squares====
 * keep practicing them.
 * how to - + * / area and perimeter

To acquire that knowledge, I will use:

 * ====books====
 * internet
 * the teachers

To determine whether I have achieved that goal(s), I will:

 * check some of my old maths books from primary and high school to see if i have improved in my work