Mathematics

SS2 Chemistry Third Term: Saturated Hydrocarbons- Alkanes

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Saturated Hydrocarbons – Alkanes The alkanes are aliphatic hydrocarbons. They form a homologous series of saturated hydrocarbons which can be represented by the general molecular formula CnH2n+2. In each alkane number, all the carbon atoms are tetrahedrally bonded to the hydrogen and other carbon atoms. These hydrocarbons  contain only C-C single bonds in their molecules

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SS2 Mathematics Third Term: Determination of the Mean, Median and Mode of Grouped Frequency Data (Revision)

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How to Determine the Mean, Median and Mode from Grouped Frequencies  To better explain how to determine the mean, median and mode of grouped frequency data, we will work with common, relatable examples as you can see below- Ade timed 21 people in the sprint race, to the nearest second: 59, 65, 61, 62, 53, 55,

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SS2 Financial Accounting Third Term: Company Amalgamation

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What is Company Amalgamation?  Amalgamation is the blending of two or more existing companies into one company. For example, if two existing companies such as Dangote Flour and Flour Mill Plc go into liquidation to form a new company Dan Flour Mill,  it will be a perfect example of amalgamation. Amalgamation can also be defined

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JSS2 Mathematics Third Term: Tables, Timetables and Charts

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Reading Tabulated Data Tabulated data means information given in a table. Tabulated data is often in numerical form. Numerical tables are a neat way of storing a lot of information. They have a wide range of uses. When reading a numerical table, always look first at its title, its column headings and its row headings.

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JSS2 English Language Third Term: Punctuation Marks and Summary Writing

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Punctuation Marks  Punctuation is used to create sense, clarity and stress in sentences. You use punctuation marks to structure and organise your writing. We use a variety of punctuation marks, such as full stop/period, comma, question mark, brackets, etc. in our writing to separate sentences, phrases, etc., and to clarify their meaning. We need to

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JSS1 Agricultural Science Third Term: Pests of Crop Plants (II)

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Effect or Economic Importance of Insect Pests in Crop Production They destroy crop by biting, chewing, piercing and defoliation activities Reduction in farmer’s profit. Some insects are disease carriers. Increased rate of crop production Reduction in the viability of stored produce They can cause total death of crops Spot of injuries by insect may predispose

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SS2 Mathematics Third Term: Determination of the Mean, Median and Mode of Grouped Frequency Data (Revision)

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How to Determine the Mean, Median and Mode from Grouped Frequencies To better explain how to determine the mean, median and mode of grouped frequency data, we will work with common, relatable examples as you can see below- Ade timed 21 people in the sprint race, to the nearest second: 59, 65, 61, 62, 53,

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SS2 Mathematics Third Term: Statistics- Calculation of Class Boundaries and Intervals

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Class Boundaries: Class Boundaries are the midpoints between the upper class limit of a class and the lower class limit of the next class in the sequence. Therefore, each class has an upper and lower class boundary.  Example: Class Frequency 200 – 299 12 300 – 399 19 400 – 499 6 500 – 599

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JSS1 Mathematics Third Term: Identification and Properties of Angles

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Angles as Rotation We use the word angle for amount of turn. For example the figures below show the hands of a clock move between 12 ‘clock to 12 ‘ clock. Both hands turn. In one hour the amount that each hand turns is different The minute hand makes one complete turn, or one revolution

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