English and Scientific terms Salah Jameel Jabrael Some vocabularies in context  Some mathematical terms with their definitions  Certain jobs vocabulary with their definitions  listening Comprehension to the CD of Headway pre- intermediate level 1

English and Scientific terms Salah Jameel Jabrael Angles The word angle derives from the Latin word angulus which means a corner. Angles are used to measure rotation around a fixed point. In this sense, degree is the measurement unit of an angle, written with the degree sign °. 2

English and Scientific terms Salah Jameel Jabrael Kinds of angles There 4 main categories of angles : 1.Acute Angle – An Acute angle is any angle less than 90°. 2. Obtuse – An Obtuse angle is an angle greater than 90° but less than 180°. 3

English and Scientific terms Salah Jameel Jabrael Kinds of angles 3.Reflex – A Reflex angle is greater than 180° but less than 360°. 4. Right Angle – A Right Angle is an angle of exactly 90°. 4

English and Scientific terms Salah Jameel Jabrael Kinds of Angles 5

English and Scientific terms Salah Jameel Jabrael jobs vocabulary 6 Suffix There are some suffixes which make jobs: -er, -r,- ist, -ian, -or e.g. 1 : Teacher : A person who teaches Students, pupils. e.g. 2 : Manager : A person who manages an office.

English and Scientific terms Salah Jameel Jabrael Jobs vocabulary e.g.3:Musician : a Person who plays a music. e.g. 4 :Artist : someone who knows an art. e.g. 5 : Scientist : someone who is familiar with a science in a field or some fields. e.g. 6 : Politician : is someone whose work is politics. e.g. 7 : Photographer : is a person who takes photos. 7

English and Scientific terms Salah Jameel Jabrael Jobs vocabulary e.g. 8 : Actor : is someone who plays an action. e.g. 9 :Postman/ postwoman : is someone who delivers posts. e.g. 10 : Nurse : is someone who looks after sick people in hospitals. 8

English and Scientific terms Salah Jameel Jabrael Listening Comprehension Typescripts : T. 1.1, T.1.2. T.1.3 Recognizing tenses 9

English and Scientific terms Salah Jameel Jabrael Homework Unit One 10