Lesson Notes By Weeks and Term v3 - Primary 1

Lesson Video

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

Performance objectives

• for this lesson:
• Students will be able to identify and find the missing number in a simple addition or subtraction open sentence (e.g., 3 + [] = 5, 7 - [] = 2).
• Students will be able to solve simple word problems that can be represented as open sentences (e.g., "I had 4 mangoes, I bought some more and now I have 7. How many did I buy?").
• Connection to

Lesson summary

This topic introduces Primary 1 learners to the fundamental concept of open sentences, which are mathematical statements containing an unknown quantity. Understanding open sentences lays the groundwork for basic algebraic thinking and problem-solving skills. It is crucial for developing logical reasoning and the ability to solve real-world problems involving missing information. In a Nigerian context, learners encounter situations daily where they need to figure out a missing number, whether it's sharing oranges among siblings, knowing how many items were sold at a market stall, or determining how many more items are needed.

Teacher activity

• Guides pupils to find missing Numbers in an example:- 1 + _ =
• 2 + _ = 5

Evaluation guide

• The evaluation aims to check if students have met the performance objectives.
• Observation: Observe students during group activities and independent practice. Note their engagement, understanding of the concepts, and ability to use manipulatives or strategies.
• Oral Questions: Ask individual students to explain how they solved a problem. "How did you find the missing number in 5 + \[ ] = 8?"
• Checking Guided Practice: Review students' work on their slates during guided practice for immediate feedback.
• Students will be given the following questions to answer.

Reference guide

• Bottle to ps
• Number cards
• Dot cards
• Pupils the mselves, etc.