Lesson Notes By Weeks and Term v3 - Primary 4

Lesson Video

This page supports the lesson note with a companion video and a short classroom-ready summary.

Performance objectives

• By the end of this lesson, students will be able to:
• Identify the factors of given 2-digit numbers.
• List the common factors between two given 2-digit numbers.
• Determine the Highest Common Factor (HCF) of two given 2-digit numbers.
• Connection to

Lesson summary

This topic introduces the concept of the Highest Common Factor (HCF) of numbers, building upon students' prior knowledge of factors and multiplication. Understanding HCF is fundamental for developing number sense and is a prerequisite for more advanced mathematical concepts such as fractions (simplification). In the Nigerian context, HCF has practical applications in daily life, such as fair distribution of resources, planning group activities, or arranging items efficiently.

Teacher activity

• Begin by reviewing multiplication facts and the concept of 'factors'. Ask students to recall what factors are. Pose simple questions like, "What numbers can divide 10 exactly?" or "List the factors of 8."

Evaluation guide

• The assessment will directly align with the provided evaluation guide: "Pupils to find the common factors of given numbers and hence determine the HCF."
• 1. Formative Assessment Strategies:
• Observation: Observe students during group activities and guided practice. Check if they are listing factors correctly and identifying common ones.
• Question and Answer: Ask targeted questions during the lesson, e.g., "What are the common factors of X and Y?", "Which of these is the HCF?".
• Quick Check: Have students show their work on mini-whiteboards or scrap paper after an example.

Reference guide

• Flannel board,Flash card,Number cards,