# Lesson Category: Form 1

## Form 4 & 5 Unit 10 Lesson 7: Sine, Cosine and Tangent for any angle (acute, obtuse and reflex)

Lesson 7 – Sine, Cosine and Tangent for any angle (acute, obtuse and reflex) Objectives At the end of the lesson, students should be able to: Demonstrate a clear understanding between sine, cosine and tangent of complementary and supplementary angles. Solve basic trigonometric equations. Know and use the reciprocals of the trigonometric ratios. Basic trigonometric …

## Form 1 Unit 10 Lesson 5-Bearing

Objectives At the end of the lesson, students should be able to: State the direction of a point. Identify the compass and the true bearing. Understand forward and back bearings Use direction and bearing to read maps There are many situations in which you might need to describe your position and direction of travel. For …

## Form 1 Unit 10 Lesson 4-Facts about Angles

Objectives At the end of the lesson, students should be able to: Identify and name adjacent angles. Identify adjacent complementary and supplementary angles. Identify vertically opposite angles. Establish and use the equality of vertically opposite angles. Adjacent Angle Two angles are Adjacent when they have a common side (Arm) and a common vertex (corner point) …

## Form 1 Unit 10 Lesson 3 – Using a Protractor to Measure and Draw Angles

Objective At the end of the lesson, the students should be able to use a protractor   to measure and draw angles. A protractor is a handy tool used to measure and draw angles. The measurement scale may seem confusing. Most protractors have two opposing ruler grids, one on the inner side of the arc and …

## Form 1 Unit 10 Lesson 2-Angles

Objectives At the end of the lesson, the students should be able to: Identify and name the vertex and arms of angles. Label and name angles. Identify straight angles, acute angles, obtuse angles reflex angles, and a complete revolution.   An angle measures the amount of turning. An angle is formed by two arms, intersecting at …

## Form 1 Unit 10 Lesson 1- Point and Lines

Objective At the end of the lesson, the students should be able to determine whether pair of lines are parallel, perpendicular, skew, intersecting or concurrent. A point is a specific or an exact position.  A point indicates a place or position and has zero size i.e. it has no length, width or thickness. It is usually indicated …

## Form 2 Unit 9 Lesson 3-Linear Equations with Fractional Coefficients

Objective At the end of the lesson, students should be able to solve linear equations containing fractions. To solve equations containing fractions: Find the lowest common multiple of the denominators which is known as the lowest common denominator (LCD). Remove the fractions by multiplying both sides of the equation by the LCD. Note when the …

## Form 1 Unit 9 Lesson 2- Solving Equations with the Variable on Both Sides

Objective At the end of the lesson, students should be able to solve equations with the variable on both sides. Sometimes, the unknown quantity will appear on both sides of an equation. The first step in solving an equation with a variable on both sides is to get the variable on one side. This is done …

## Form 1.Unit 9 Lesson 1 – Solving a Linear Equation Involving One Unknown

Objective At the end of the lesson, the students should be able to solve linear equations involving one unknown. Linear equation  A linear equation is any equation that can be written in the form ax+b=0. Where a and b are real numbers and  is a variable.  This form is sometimes called the standard form of …

## Form 1 Unit 8: Lesson 6- Substitution (Evaluating Algebraic Expressions)

Objective At the end of the lesson, the students should be able to substitute numbers for the variables. SUBSTITUITION (Evaluating Algebraic Expressions) As discussed earlier, variables or pronumerals are unknown numbers or figures. Therefore algebraic expressions can be transformed into numerals, by substituting the variables for the numbers. How to Substitute Replace each letter in …

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