Mathematics Scheme of Work, SS1, 3rd Term

len Alfred Ajibola - Mon, 18th March, 2019 @ 10:39 PM

Topics in Mathematics

Angles: Type of angles based on degree measurement Angle Pairs: Types of angle pairs Conversion of Number Bases explained with examples Angles: What are Angles? Categories of Angles Lines and Types in Mathematics Number Base System - Table showing the Number Bases with explanations Mathematics Scheme of Work, SS1, 3rd Term Mathematics Scheme of Work, SS1, 2nd Term Mathematics Scheme of Work, SS1, 1st Term Trigonometry - Sine, Cosine and Tangent explained with worked examples Quadratic Equation - Factorization of Quadratic Equation Algebra - Explanation and Worked Examples on Algebra

Academic Questions in Mathematics

Please click here to see all Questions and Answers

Decagon - Len Academy

What type of polygon is shown in the above image?

  • A. Nonagon

  • B. Decagon

  • C. Octagon

  • D. Hexagon

  • E. Hepagon

  • F. Pentagon

Which of the following is not part of a circle?

  • A. Section

  • B. Sector

  • C. Segment

  • D. Semicircle

  • E. Secant

  • F. Center

Acute Angle - Len Academy

What angle is shown in the above image?

  • A. Complementary

  • B. Supplementary

  • C. Acute

  • D. Obtuse

  • E. Reflex

  • F. Straight

An angle greater than 90o but less than 180o is termed _____.

  • A. Complementary

  • B. Supplementary

  • C. Acute

  • D. Obtuse

  • E. Reflex

  • F. Straight

Factorize 12a2 - 20a + 3

  • A. (6a - 1)(2a - 3)

  • B. (6a - 1)(2a + 3)

  • C. (6a + 1)(2a - 3)

  • D. (6a + 1)(2a + 3)

  • E. (-6a + 1)(2a - 3)

  • F. (-6a + 1)(2a + 3)

Simplify 10ab + 7ab

  • A. 17ab2

  • B. 17a2b2

  • C. 3ab2

  • D. 3a2b2

  • E. 17ab

  • F 3ab

Which of the following is not a type of angle?

  • A. Right angle

  • B. Left Angle

  • C. Acute Angle

  • D. Complete Angle

  • E. Straight Angle

  • F. Reflex angle

Two lines that can never meet each other are best considered as _____ lines.

  • A. straight
  • B. vertical
  • C. horizontal
  • D. parallel
  • E. oblique
  • F. perpendicular

Scheme of Work (Mathematics) SS1, 3rd Term:


Week 1

Topic: Deductive Proofs

  • Types and properties of triangles.
  • Proofs of sum of angles in a triangle is 180o, the exterior angles is equal to the sum of its two interior opposite angles.
  • Please read on angles here.


Week 2

Topic: Deductive Proofs

  • Similar and congruent triangles.
  • Isosceles and equilateral triangles.


Week 3

Topic: Deductive Proofs

  • Properties of parallelogram and related quadrilaterals.
  • Intercept theorem.
  • Parallelogram of the same base and between the same parallel lines are equal in area.


Week 4

Topic: Polygon - (Types)

  • Sum of interior angles of any n-sided polygon.
  • Sum of exterior angles of any polygon.
  • Problem solving on polygon.


Week 5

Topic: Trigonometry


Week 6

Topic: Trigonometry

  • Solving problems involving use of sine, cosine and tangent at right-angled triangles.
  • Application of trigonometric ratios of 45o, 30o and 60o to solving problem without the use of calculating aids.


Week 7

Topic: Trigonometry

  • Trigonometric ratios related to the unit circle.
  • Draw graphs of sine from  0o ≤ ө ≤ 360o.
  • Draw graphs of cosine from 0≤ ө ≤ 360o.


Week 8

Topic: Statistics

  • Revision on collection, tabulation and presentation of data.
  • Construction of frequency tables.
  • Bar charts and histogram differentiate between bar chat and histogram.


Week 9

Topic: Statistics

  • Calculating the sectoral component of pie chart.
  • Drawing pie chart correctly.
  • Interpreting the pie chart and bar chart.


Week 10

Topic: Statistics (Grouped Data)

  • Drawing histogram.
  • Estimation of mode from histogram.


Week 11

Topic: Statistics

  • Construction of frequency polygon of a given distribution.


Week 12

  • Revision


Week 13

  • Examination


Mathematics scheme of work, SS1, 1st term

Mathematics scheme of work, SS1, 2nd term

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Amazing facts in Mathematics

The opposite sides of a dice will always give a sum of seven

31,556,926 seconds makes one year

From 0 through 1000, the only number that has the letter 'a' in it is 'one thousand'


The division symbol '÷' is actually called an obelus

Four is the only number in the English language that is spelt with the same number of letters as the number (4) itself

40 is spelt as forty and not 'fourty'. It is the only number that is spelt with letters arranged in alphabetical order

An odd number is a number that cannot be divisible by 2.

Every odd number has an 'e' in its spelling. They include:

  • One
  • Three
  • Five
  • Seven
  • Nine

555 in Thailand sounds like 'hahaha'. This is because the number '5' means 'ha' in Thailand

In mathematics, 10! means 10 factorial. Below is its calculation:

10! = 10 x 9 x 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1 = 3628800

Interestingly, 3628800 seconds is the same as 42 days

42 days is the same as 6 weeks

We can therefore say that 10! equals 6 weeks or 3628800 seconds in mathematics

When you multiply 111,111,111 by 111,111,111; the result equals 12,345,678,987,654,321

Notable points in Mathematics

Let's use algebra to explain the simple statement below:

I am a number. When you subtract 3 from me, the result is 9. what number am I ?

Of course we know the answer is 12. You probably guessed it from your mind because it was that simple. The truth is, We could have a much more complicated statement of such; and that is where algebra comes into play.

Now, to apply algebra in the above statement, we use letters or alphabets to represent the unknown number(s). So using algebra, we can write:

  • Let the number be y

  • y - 3 = 9

  • y = 9 + 3

  • y = 12

Please read more on algebra here

Sides of a right angle triangle - Len Academy


The image above shows a right angled triangle. The angle of the above right triangle is denoted as θ. Below are some points to note:

Hypotenuse is always the longest side of the triangle.

Opposite is the side opposite the angle (θ)

Adjacent is the shorter side next to the angle (θ)

Each of Sin θ, cos θ and tan θ are the ratio of sides of the right triangle. They are calculated by using the formula (margic word) sohcahtoa:

Sohcahtoa - Len Academy


Sin θ = Opposite/Hypotenuse


Cos θ = Adjacent/Hypotenuse


Tan θ = Opposite/Adjacent

Please read more on sine, cosine and tangent here

Circumference of a Circle - Len Academy

Circumference in mathematics means the distance around the edge of a circle (or a another curved surface).

Circumference is to circle or any other curved surface

Perimeter of a Rectangle - Len Academy

Perimeter means the distance around a square or rectangle or polygon.

Perimeter is to square or rectangle or polygon