Basic 5 Mathematics Term 1 Week 4 Lesson Plan

Learners must count in reverse, numbers in a range continuously without breaking. For example from (20 – 1). Divide the class into groups. One person from each group countdown the range without breaking.

Ask learners to use different arrangements of arrays of objects to find factors of whole numbers 1 – 100. For instance the factors of 24 can be obtained from the following arrays of objects. Ask learner to collect from the arrays, pairs of number as the factors of the given number, 24. Hence the set of factors of 24 = {1,2,3,4,6,8,12,24} Ask learners to use different arrangements of arrays of objects (or the factorization method) to find factors of the first 30 whole numbers and use their results to complete the table below. Have learners identify prime numbers; i.e. number with only two factors, 1 and the number itself; other are composite Number Factors Number of factors 1 1 1 2 1,2 2 3 1,3 2 4 1,2,4 3 Wednes day Ask learners to use different arrangements of arrays of objects (or the factorization method) to find Factors of the first 30 whole numbers and use their results to complete the table below. Have learners identify prime numbers; i.e. number with only two factors, 1 and the number itself; other are composite Number Factors Number of factors 10 1,2,5,10 4 15 1,3,5,15 4 20 1,2,4,5, 10,20 6 30 1,2,3,5, 6,15,30 7 In convenient groups, have learners use the “Sieve of Eratosthenes” to identify prime numbers between 1 and 100, i.e. dividing through by whole numbers starting from 2; numbers that cannot be divided by other numbers except the number itself are prime numbers Ask learners to use arrangements of twos arrays of objects to find even and odd numbers between 1 and 100 Ask learner to collect from the arrays, pairs to skip count in twos starting from 1 to generate odd numbers, and skip count in twos starting from 2 to generate even numbers. For this activity, learners use bottle tops, locally made number cards and exercise books to make arrays or sequences, identify the rule or factors and record their findings.

Ask learners to tell you what they have learnt and what they will like to learn in the next lesson Give learners individual or home task.