# Lesson Notes By Weeks and Term - Primary 2

Symmetry

TERM: 3rd Term

WEEK: 7

CLASS: Primary 2

AGE: 7 years

DURATION: 5 periods of 40 minutes each

DATE:

SUBJECT: Mathematics

TOPIC: Symmetry

SPECIFIC OBJECTIVES: At the end of the lesson, the pupils should be able to

1. Identify horizontal and/or vertical lines of symmetry.
2. Copy, extend, create and describe in words simple geometric patterns made with drawings of lines, shapes or objects.
3. Identify, describe in words and copy geometric patterns in nature, from everyday life and from our cultural heritage.

INSTRUCTIONAL TECHNIQUES: Explanation, question and answer, demonstration, practical

INSTRUCTIONAL MATERIALS: Bottle tops and matchsticks/sticks

PERIOD 1: Symmetry

PERIOD 2: Geometric patterns

 PRESENTATION TEACHER’S ACTIVITY PUPIL’S ACTIVITY STEP 1MENTAL MATHS The teacher begins the lesson with some mental calculationsComplete the pattern1 2, 4, ___2 6, __, 10  3 0, 3, 6, ___  4 15, ___, 25  5 12, 9, ___  6 20, ___, 167 4, 8, __8 30, 35, __9 10, __, 3010 24, 28, ___ Pupils respond and participate STEP 2CONCEPTDEVELOPMENT The teacherAll learners stand up.• Clap a pattern with them (clap, clap, clap, clap, clap, clap). Discuss the pattern.• Claps using different counts and discuss the pattern in the clapping each time.• Calls on a few individual learners to clap the pattern out on their own. Repeat withdifferent patterns.• Repeats with clicking fingers (click, click, click, click, click, click).• Calls on a few individual learners to click the pattern out on their own. Repeat withdifferent patterns.• Discusses the pattern each time, focusing on what is repeated.  CLASS ACTIVITYThe teacher• Gives each group of learners 20 bottle tops and 20 matchsticks.• Asks the learners to design patterns, using the bottle tops and the matchsticks. (Learners’ patterns will vary depending on the colours and bottle tops they have. They must make a pattern that repeats and be able to describe the pattern to you. For example: One bottle top, two bottle tops or One green bottle top, one silver bottle top, one matchstick or two matchsticks, two bottle tops or one bottle top, three matchsticks, etc.)• Asks each group to describe at least one of the patterns they have made to the wholeclass. The key to these patterns is that the number/colour and/or type of shapes ischanging and repeating. ACTIVITY IIThe teacher• Asks the learners to draw a pattern of circles that changes in a regular way in theirclasswork books.For example, learners could draw circles that get smaller or bigger.For example: The next shape in this pattern would be an even bigger circle. • BUT in another example: The next shape in this pattern would be the tiny circle – starting a new group of 4 circles. Pupils pay attention and participate STEP 3CLASS-WORK 1 Draw the next set of shapes in the patterns given below: 2 Extend these patterns.   3 Draw your own pattern of squares that grows in a regular way. Pupils attempt their class work STEP 4HOME-WORK Draw your own pattern using shapes. The pupils writes it in their homework book STEP 5SUMMARY The teacher summarizes by reminding the pupils that in today’s lesson we learnt about geometric patterns. She marks their class works, makes corrections where necessary and commends them positively

PERIOD 3: Geometric patterns

 PRESENTATION TEACHER’S ACTIVITY PUPIL’S ACTIVITY STEP 1MENTAL MATHS The teacher begins the lesson with some mental calculationsCalculate1 50, 40, ___2 12, __, 20  3 0, __, 8  4 35, ___, 45  5 15, 18, ___  6 21, ___, 15  7 20, __, 288 50, 45, __  9 50, __, 7010 20, 24, ___ Pupils respond and participate STEP 2CONCEPTDEVELOPMENT The teacherPatterns in nature.• Asks: Can you guess where we would find patterns like these? (In nature – animal skin.)• Asks: What animals are these? (Leopard, zebra, giraffe.)• Asks: What type of pattern can you see? (Irregular (not regular) lines or shapes.) ACTIVITY IIThe teacherPatterns in everyday life.Refer to the pictures of patterns• Asks: How can we describe patterns that we see around us?There are different ways to describe the patterns we see around us.Most patterns around us are made up of lines, shapes or objects.What we see is what is repeated, e.g. repeated dots, lines or any kind of shape.• Discusses other patterns learners can think about that they have seen around them. Pupils pay attention and participate STEP 3CLASS-WORK 1 Match the animal to the animal skin pattern   2 Describe the following patterns. Use the key words to help you. Pupils attempt their class work STEP 4HOME-WORK Design your own geometric pattern using squares and triangles. The pupils writes it in their homework book STEP 5SUMMARY The teacher summarizes by reminding the pupils that in today’s lesson we learnt about geometric patterns around us. She marks their class works, makes corrections where necessary and commends them positively She marks their class works, makes corrections where necessary and commends them positively

PERIOD 4: Assessment

 PRESENTATION TEACHER’S ACTIVITY PUPIL’S ACTIVITY STEP 1ORALASSESSMENTS The teacher asks questions on mental maths treated so far Pupils respond and participate STEP 2DISCUSSION The teacher discusses all the methods used by some learners in the oral assessments(some of the questions are solved on the board by the learners) and addresses any misconceptions that may have risen Pupils pay attention and participate STEP 3WRITTEN ASSESSMENTS 1 Draw the next two shapes in this pattern: 2 Draw a pattern using one triangle and two squares. Repeat the pattern two times._____ _____ _____ _____ _____ _____ _____ _____ _____ 3 Draw the first three steps of a pattern using circles. The number of circles must increase each time.______________________________________________________________________ NOTE: Pattern must be made of circles with changing numbers,three steps in the pattern are drawn and the correct three consecutive steps are drawn. Pupils attempt their class work STEP 4SUMMARY The teacher marks the written assessments, corrects were necessary and commends the pupils

PERIOD 5: Weekly Test/consolidations

TEACHER’S ACTIVITY: The teacher revises all the concepts treated from period 1-4 and gives the pupils follow through exercises, quiz and tests. She marks the exercises, makes corrections and commends the pupils positively.

PUPIL’S ACTIVITY: The pupils work on the worksheets and exercises given by the teacher individually

CONSOLIDATION

1 Draw the next set of shapes in the given patterns.

2 Draw the next set of shapes in the given pattern.