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

• compute addition and subtraction of weights using Kg and g
• multiply and divide weight by whole numbers

Lesson summary

This topic focuses on developing learners' understanding and practical application of weight measurements, specifically using kilograms (Kg) and grams (g). Weight is a fundamental concept in daily life in Nigeria, encountered in various contexts such as buying foodstuffs at the market, measuring ingredients for cooking, or understanding quantities of goods. Mastery of these operations is essential for students to accurately perform calculations involving weight in real-world scenarios, fostering numeracy and practical problem-solving skills.

Teacher activity

• Guides pupils to Revise conversion:1kg = 1000g and leads pupils to solve problems in addition and subtraction of weights412g + 319g = 731g2kg 457g + 3kg 716g + 412g= 6kg 585g15kg 437g – 4kg 39g = 11kg 398g
• Leads pupils to solve problems on multiplication and division of weights in (kg) and (g) by whole numbers212g x 3 2kg 212g x 9216g ÷ 3 3kg 560 ÷ 7

Evaluation guide

• Observation: Monitor students' engagement during activities, participation in discussions, and their ability to work through guided practice problems.
• Question and Answer: Ask targeted questions during explanations and guided practice to check for understanding (e.g., "Why did we carry over 1 Kg here?" or "What do we do if the grams are not enough for subtraction?").
• Quick Check: Have students demonstrate unit conversion orally or by quickly solving one small problem on a mini-whiteboard or scrap paper.
• Summative Assessment (End-of-lesson/Week Quiz):
• Instructions: Answer all questions. Show all working clearly.

Reference guide

• Weighing scale,Scale balance, etc