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Sum and difference The sum of a set of numbers is the result when the numbers are added together. Example The sum of four consecutive numbers is 58. Find the numbers. Let the numbers be n, n+ 1, n + 2, n + 3. n + (n + 1) + (n + 2) + (n […]
Classwork Series and Exercises {Mathematics- JSS1}: Word Problems Read More »
Position, Distance, Displacement, Speed, Velocity and Distance-Time graph The position of a point in space is determined by its distance and direction from other points. The statement of position is accomplished by means of a frame of reference or point of reference, which we shall call the origin. Distance is the movement coverage of a
Classwork Series and Exercises {Physics- SS1}: Speed and Velocity Read More »
Introduction to Advertising Advertising is concerned with giving publicity to the existence of goods and services by focusing attention on facts such as features, uses, benefits, etc, about the goods and services in order to create effective demand for them. It is defined as any non-personal presentation and promotion of goods and services to a
Classwork Series and Exercises {Business Studies- JSS2}: Introduction to Advertising Read More »
Introduction Sometimes we do not need to measure of calculate things exactly. We may only wish to have a rough idea, or to calculate only to a certain degree of accuracy. It is in such cases we talk of decimal places, significant figures or rounding off to the nearest unit, tens, etc. When this happens,
Classwork Series and Exercises {Mathematics- SS2}: Approximation and Percentage Error Read More »
Definition of Cellular Respiration Cellular respiration refers to the biochemical pathway by which cells release energy from the chemical bonds of food molecules and provide that energy for the essential processes of life. It can also be defined as the set of the metabolic reactions and processes that take place in the cells of organisms
Classwork Series and Exercises {Biology- SS2}: Cellular Respiration Read More »
Word Problem Involving Quadratic Equations Write a “let” statement and equation for each example. Explain the difference. Find two consecutive integers whose sum is 13 Let x = first integer x + 1 = second integer x + x + 1 = 13 Find two consecutive two consecutive integers whose products is 42 Let x
Rounding off numbers To ’round off’ or ‘approximate’ a number to a desired degree of accuracy, we round the number up if the next digit is 5 or more round the number down if the next digit is less than 5. We represent approximately equal to as and approximately as ‘~’ Examples: 73 is close to 70 if approximating
Classwork Series and Exercises {Mathematics- JSS2}: Approximation and Estimation Read More »
What is Reproduction? Reproduction means the act of bringing to life young ones that are of the same species. In other word, reproduction is the creation of a new individual or individuals from previously existing individuals. Types of Reproduction There are two types of reproduction. These are: Asexual Reproduction: Only one organism divides to form
Classwork Series and Exercises {Biology- SS2}: Reproduction Read More »
Concepts of Time Time itself can be defined as that in which developments and happenings can be distinguishably analyzed with reference to before and after. In the International System of Units (SI), the unit of time is the second (symbol is S). The most natural time unit is the solar day which is manifested by
Classwork Series and Exercises {Physics- SS1}: Concepts of Time Read More »
Adding and subtracting directed numbers Numbers can be shown on a number line which extends above and below zero. This gives positive and negative numbers. The signs + and – show the direction from 0. Positive and negative numbers are called directed numbers. To add a positive number, move to the right on the number
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