Mastering Subtraction: The Art of Taking Away

Mastering Subtraction: The Art of Taking Away

Learning Objective

At the end of the lesson, you will be able to understand and apply the concept of subtraction in various contexts.

What do you already know about subtraction?

What is Subtraction?

Subtraction is the process of taking one number away from another to find the difference or the amount left.

Subtraction Symbol

The minus sign (-) is used to indicate subtraction in mathematical expressions.

Subtraction Example

7 - 3 = 4

Borrowing in Subtraction

When the top digit is smaller than the bottom one, borrowing is used to subtract across the digits.

Subtraction in Real Life

Subtraction is used in everyday situations such as calculating change, measuring differences, and solving problems.

Subtraction Applications

Subtraction is essential in various mathematical concepts like finding the difference, determining the decrease, and solving equations.

Practice and Review

Encourage students to practice subtraction problems and review the key concepts covered in the lesson.

Write down 3 things you learned in this lesson.

Have students enter three things they learned in this lesson. With this they can indicate their own learning efficiency of this lesson.

Write down 2 things you want to know more about.

Here, students enter two things they would like to know more about. This not only increases involvement, but also gives them more ownership.

Ask 1 question about something you haven't quite understood yet.

The students indicate here (in question form) with which part of the material they still have difficulty. For the teacher, this not only provides insight into the extent to which the students understand/master the material, but also a good starting point for the next lesson.