Trigonometry Lesson Plan for Year 10 Mathematics Curriculum

This document presents a detailed lesson plan for a Year 10 trigonometry class. The lesson focuses on introducing students to fundamental trigonometric concepts, including identifying the hypotenuse, understanding trigonometric ratios (tangent, cosine), and applying trigonometry to solve real-life problems, such as those involving angles of depression and elevation. The plan outlines specific learning objectives, key concepts (hypotenuse, adjacent, Pythagoras theorem), and links to the curriculum. It includes a step-by-step guide for the teacher, detailing activities such as introductions, group activities, and assessment strategies. The lesson plan also incorporates resources such as textbooks, meter rules, and whiteboards and includes evaluation and reflection sections to gauge student understanding and the effectiveness of the lesson. The accompanying brief provides another lesson plan on simple interest, its formula, and its practical application.

Lesson Plan Performa
Teacher = Sameer Godara Class: Year 10
Date Time: 2 hours
Lesson Heading/Topic:
This is a beginning lesson on Trigonometry for year 10
Lesson Objectives:
By the end of the study, the learners should be able to:
 Identify correctly the hypotenuse of a right angled triangle besides the opposite
and adjacent sides of any given right angled triangle
 Establish a pattern relating the ratio of sides of a triangle with angles and thus
comprehend the concepts of tangent, cosine and tangent angle ratios
 Apply trigonometry in the solution of real life problems among them those
inclusive of angles of depression as well as elongation
Key Concepts/Ideas:
Hypotenuse: The longest and slanting side of a right angled triangle
Height: The vertical side of the triangle
Adjacent: The side next to a given angle
Pythagoras Theorem rule
Hypotenuse2=Height2+ Adjacent2
Curriculum/Syllabus Link:
http://www.scootle.edu.au/ec/search?accContentId=ACMNA229
Prerequisite skills:
1

Lesson Plan Performa
 Knowledge of the various types of triangles
 Skills on how to find the sum of the angles of a triangle
Values And Attitudes
 Anticipatory set
 Check for understanding
 Instructional input
2

Lesson Plan Performa
3
TIME TEACHER ACTION STUDENT-CENTRED
ACTIVITIES
(including assessment of
learning)
RESOURCE
S
Introduction The teacher greets the
students and invites them to
pray
Teacher asks how students
are doing
Teacher calls the student
attendance register
Teacher communicates
objectives and outcomes of
learning expected to be
achieved by learners
Teacher motivates students
by telling them one of the
benefits of studying
trigonometry
Listening and watching Register
Main body Teacher asks the learners in
how many ways can they
divided each of the shapes
shown below into triangle-
angled triangles.
Ask the learner to draw any
shape of a right angled
triangle. What closed polygon
can you make by the triangle
as the main building block
Ask the students to construct
a right angled triangle and
label it accordingly
Show the students how to
transform th sides of the
triangle and then fill the table
below
Call at random from any
member of the class to
present his results to the class
 Listening
 Watching
 Answering question
 Asking questions
 Working in pairs to find
out what closed
polygon each of them
can create by a triangle
 Answering questions on
the names of the
polygons created
Respond to the presentation by
asking questions and
confirming if the fellow
classmate is right
Whiteboard
PowerPoint
Whiteboard
Meter rule
Set square
Whiteboard
Meter rule
Set square
Closure Recap of the lesson of the Offering answers Assignment

Lesson Plan Performa
Resources
 Y10 Mathematics text book student copy
 Y10 Mathematics text book teacher’s guide
 Meter rule
 Set squares
 Whiteboard
Appendices
Rubric
Syllabus
Syntax Learning Model
Certificate of appreciation
Reflection sheet
4