TABLE – (noun) 1. A table is something with a flat surface that stands on legs on which you can put things. “Come and eat; the food is on the table.” 2. In maths a table is a set of numbers in rows and columns. See COLUMN. Your multiplication tables are a good example of tables used in maths. See MULTIPLICATION TABLE & Appendix IV.
TABLES – (noun) This word is used to mean multiplication tables.
TAKE AWAY – (verb) 1. Take away means the same as to remove. “Please take away your books and give me some space on the table. “ 2. Take away also means subtract. “Four take away three leaves one.
TANGENT – (noun) 1. Tangent is a word used in geometry. It means a line which touches a curve at one point only. In geometry we usually have to do with tangents to circles. See diagrams 16A & 16B. 2. Tangent has another meaning in trigonometry. See diagrams 20 & 24 to see what the tangent of an angle is.
TANGENTIAL – (adjective) See Diagram 16A.
TAX – (noun) A tax is something that one must pay to the government or to the local authority who manages the town or city where one owns property. See LOCAL AUTHORITY & MUNICIPALITY. There are various sorts of tax. Income Tax is paid on one’s income. Property Tax is paid on property. See RATES & TAXES. Sales Tax is paid on most things that one buys in the shops. Value Added Tax – (VAT) which has taken the place of sales tax. Also there are a lot of taxes which one pays on specific goods. For example there is a tax on petrol and cigarettes which is included in the price one pays. The money from taxes is used for schools, the army, roads and other expenses of the government and local authorities.
TEAM – (noun) A team is the name for a group that works together for a common purpose.” A football team plays together to win the game. A team of doctors work together in a hospital to save people’s lives. A team of oxen pull together to draw “- (pull along)” a wagon.
TELL – (verb) 1. Tell means to say something to someone.” Please tell me what is wrong. ” – (Past is told) He told her a lie about why he was late. 2. To tell the time means to look at a watch or clock and read off what is the time.
TENANT – (noun) A tenant is someone who rents a house. “The tenant must pay rent to the landlord.” See LET.
TENSE – (noun) 1. Tense in grammar means the form of a verb in its relation to time. Bite is the present tense of the verb to bite. “The dog bites the ball.” Bit is the past tense of ‘bite’ and ‘will bite’ is its future tense. 2. Tense – (adjective) also means stretched tight. “The tense rope broke”. 3. One can also talk about tense nerves if a person is going through a worrying or dangerous events.” When the car nearly turned over it was a tense moment.
TERM – (noun) has 4 important meanings. Firstly it means the length of time a thing lasts. It is mostly used to do with the times of the year when children are at school. There are usually 4 school terms in a year. Secondly it means a word with a definite meaning. See DEFINITE. “Some of the terms used to describe a bicycle are: wheel, frame, saddle, handle bars, pedals and chain.” “To become a doctor you must learn many medical terms.” Thirdly term has a special meaning in maths. See EXPRESSION. Fourthly it has a special meaning when you buy something. If you buy something on terms it means that you are not paying for it in full. The details of how you are going to pay for it are called the terms. For example you may buy a car on terms by paying R5000 cash and the balance at R200 per month for 5 years.
TEST – (noun) 1. A test is a trial to see if something works properly or if someone knows something or can do something properly. See PROPERLY. “He passed his test with 75%”. “Tomorrow I must write the end of term test. “ 2. It is used as a verb with the same meaning. “ He tested the bridge to see if it would hold the weight of a car. The teacher will test the knowledge of his pupils.
TETRAHEDRON – (noun) A tetrahedron is a polyhedron with four faces. It is the same as a pyramid with a triangular base. See diagram 22.
TEXT – (noun) is the name for written words in a book. “He had difficulty reading the text because the light was bad.
TEXTBOOK – (noun) is the name for a book that is specially written for a school subject. “Here is a new textbook on arithmetic
THE is called the definite article. 1. ‘The’ is used before a noun when the noun is something definite. See DEFINITE. “The name of the king is John.” Here we are talking about a definite king whose name is John. 2. ‘The’ can also be used for a plural noun. “The kings of England were often very cruel.” Here again we are speaking about some definite kings – (the kings of England). “A king is usually very powerful.” Here we use ‘a’ instead of ‘the’ because we are talking about any king not a definite king. The plural of ‘a’ is ‘some’.” Some kings are powerful, but a few are weak. ” See A & ARTICLE.
THEOREM – (noun) A theorem is something to be proved by reasoning shown step by step. The theorems you have to prove will be in your geometry book. Reasoning means to use your mind to work out things that make sense. See PROVE, REASON, SENSE.
THOUSAND A thousand is 10 x 100 = 1000. See Appendix IV.
THREE DIMENSIONAL – (adjective) means something that goes in all three dimensions. Space is three dimensional. See DIMENSION & diagram 11.
TICK – (noun) 1. Tick is the noise that a clock makes. “All he could hear was the tick tick of the clock.” 2. A tick is also the mark that your teacher makes next to a sum that you have got right. See diagram 45. 3. Tick is also the name o f a small insect that sucks the blood of animals and people.
TIMES In arithmetic times has two meanings. Please look at DIVIDE and look at MULTIPLY.
TITLE DEED – (noun) A title deed is a special piece of paper which says who is the owner of a particular piece of property. See PROPERTY. When a house is sold it must be transferred to the new owner. See TRANSFER. This is handled by an attorney – (Also called a lawyer) who gives all the details to the Deeds Office who arranges the transfer. The transfer cannot take place until the full price that was agreed has been paid. See ATTORNEY. There is also a tax called transfer duty that must be paid when a property is transferred.
TO – (preposition) 1. ‘To’ means the place or direction aimed for. “She threw the ball to me. He walked to school.” 2. It is also used to show a ratio. See RATIO. One is to two is the same as the ratio of one to two. 3. ‘To’ can stand for ‘in order to’ which means ‘for the purpose of’. He works to make money or he works in order to make money or he works for the purpose of making money all mean the same. 4. ‘To’ is used for the infinitive form of a verb. See INFINITIVE. ‘To work’ is the infinitive of the verb ‘work’ and ‘to play’ is the infinitive of the verb ‘play’. 5. ‘To’ also can show belonging. With this meaning it is often use with the word ‘key’. “The key to the safe; the key to the puzzle; the key to the door.”
TOPIC – (noun) is another word meaning a subject to talk about or write about. “She had a lot to say on the topic of cooking. He thinks that engineering is an interesting topic.
TOTAL 1. Total is the name for the answer when you add up some numbers. “He got the total to 103.” See SUM. 2. Total also can be used as a verb meaning to count the total. “When he totalled the money in his pockets he found he had nearly R5”. 3. Total also means complete. We had a total – (adjective) victory; the score was 6 to nil.
TOUCH – (verb) 1. Touch means to come into contact with. When a person puts his finger against something, you say that he is touching that thing with his finger. “That hurts because you are touching my sore spot. She did not like going out with him because all he seemed to wish to do was to keep touching her. “2. Touch also means to be in contact with or to make contact with. “ The corner of the table is touching the wall. There is an electrical fault because those two wires are touching each other. ” 3. It also means to handle or use. “ She won’t touch alcohol. He won’t touch cigarettes except when he goes to a party. “4. In maths touch has a special meaning. When a line touches a circle it means that the line has come into contact with the circle at one point only. If the line cuts across the circle then you say it is intersecting the circle, not touching it. See diagram 16A.
TRACE – (noun) 1. Trace means a mark or a sign that tells you that something was there before. “Footprints in the sand would therefore be called traces. They will never find who stole the money because the thief left no trace. “2. It also means a very small amount. “ After sunset there was just a trace of red in the sky. “3. When you trace a drawing you put the drawing on top of a sheet of paper and go over the drawing with a pencil pressing hard enough for the pencil to make a mark on the paper below. If you use a piece of carbon paper you do not have to press very ha rd. Another way to trace is to use a piece of tracing paper. Tracing paper is thin paper that one can see through. If you put tracing paper on top of the thing you wish to trace it is very easy to do. “That is not her drawing because she traced my drawing. “ 4. When you are looking for something by following marks or footprints you say you are tracing – (verb) that thing. “He is a very good hunter because he can trace the footprints of animals easily.
TRADE – (verb) 1. Trade means to buy and sell things. It is mostly used about things being bought and sold from one country to another. “There is a lot of trade between these two countries. The one buys food and sells steel and the other buys steel and sells food”. 2. A trader – (noun) is one who buys and sells. “He is a wool trader.” 3. Trade is also used to describe what sort of work a person does to make money. “Bricklaying is his trade.
TRAIN – (noun) 1. A train is something that goes on rails and that people travel in. “She went to her work by train every morning, but she came home by taxi. “ 2. When train is used as a verb it means to show someone how to do something properly. “You can train a person to lay bricks or to be an electrician or to be a secretary for example. People who want to be good at a sport have to spend a lot of time training or being trained.
TRANSACTION – (noun) A transaction is the name of the action when one person agrees to buy and another agrees to sell something at a definite price. See DEFINITE. “This was an important transaction for him because by it he would make enough profit to pay all his bills. Please enter all the cheques for these transactions in the cash book. ” See BOOK KEEPING.
TRANSFER – (verb) means to move from one place to another or to hand from one person to another. “He will transfer from Cape Town to Johannesburg” – (this means that he is living and working in Cape Town at the moment, but he will be moving to a new job in Johannesburg). “He transferred the book from his left hand to his right hand. If he buys this house from me he will have to get it transferred from my name into his name. “See TITLE DEED.
TRANSISTOR – (noun) A transistor is used to control the flow of small electric currents. See ELECTRONICS. It has a similar effect that a water tap has on the flow of water. You will learn in the subject PHYSICS exactly how a transistor works. Radios, tape recorders, TV sets, and computers all have transistors.
TRANSITIVE – (adjective) This is a word that describes a verb. With a transitive verb the subject is doing the action. “He kicked the ball.” He is the subject and he is doing the action of kicking. See INTRANSITIVE. “The ball is kicked by him.” This is not a transitive verb because the subject, the ball, is having the action done to it.
TRANSLATION – (noun) means the changing of a word or some written information from one language into another. “The translation of the bible from English into Xhosa was a big job.
TRANSPORT – (verb) 1. Transport means to move something from one place to another. “The sugar cane is transported from the fields to the sugar factory. I will transport the people in a bus and their luggage on a lorry. “2. Transport as a noun means the thing which transports you.” We had no transport so we had to walk. ”
TRANSVERSAL – (noun) A transversal is a line intersecting two or more lines. See diagrams 6 & 8.
TRAPEZIUM – (noun) A trapezium is a four sided figure with one set of parallel lines. See PARALLEL. See diagram 7.
TREASURE – (noun) is the name for valuable things like gold and silver coins and jewels that have been stored away for future use. “The pirates buried the treasure on a small island.
TREASURER – (noun) The treasurer of an organisation is the person whose job it is to look after the money and keep good records of all the money received and all the money spent and to see that it is not mis-spent or stolen. Treasurer is often used for the person who does this for a club. See CLUB. The person who does this for a business organisation is usually called the accountant or the financial manager. See FINANCE.
TRIANGLE – (noun) A triangle is a three sided figure. See diagram 12, 13 & 14. See Appendix II.13.
TRIANGULAR – (adjective) means having the shape of a triangle. “A triangular traffic sign means that there is danger ahead.
TRICK – (noun) 1. A trick is something clever that is done to deceive someone. See DECEIVE. “The trick he did was to make it look as if the person he put in the box disappeared”. You can also play a trick to steal something from someone. This is usually called a dirty trick. 2. Trick can be used as a verb. “He tricked her out of her whole week’s pay”.
TRIG – (noun) is short for trigonometry.
TRIGONOMETRIC is the adjective from trigonometry. “He used a trigonometric method to solve that problem.
TRIGONOMETRIC EQUATION – (noun) A trigonometric equation is an equation involving trigonometric functions of an unknown. sin x – 3 cos x = 0,5 is a trigonometric equation.
TRIGONOMETRY – (noun) is the maths subject which deals with the relationship between the sides and angles of right angle triangles. See RELATIONSHIP. See diagram 20, 24 & 25.
TRILLION A trillion is the result of multiplying 1 000 000 x 1 000 000. See Appendix IV.
TRINOMIAL – (noun) A trinomial is any expression containing 3 terms. An example of a trinomial is 3x + 4y + z.
TROPICS – (noun) The tropics are an area north and south of the equator. This area is bounded by the northernmost and southernmost latitudes where the sun can shine directly overhead which are the tropic of Cancer and the tropic of Capricorn. You need to get your geography teacher to demonstrate this to you using a ball to represent the earth. See LATITUDE.