KSP Математика 6 grade: Вычитание чисел

Introduction

This Grade 6 Mathematics lesson plan on “Subtracting Numbers” helps teachers teach students to perform subtraction with positive and negative numbers, understand rules, and apply them in problem solving.

Main material

Lesson objective: to develop the skill of subtracting numbers, including positive and negative, and using this knowledge in calculations and practical situations.

Expected outcomes:

students know rules for subtraction;
transform subtraction into addition with the opposite number;
correctly calculate expressions with positive and negative numbers;
apply knowledge in practical problems.

Lesson structure:

Organization
Greeting.
Prior knowledge
Review addition with different signs, absolute value, comparing numbers.
New topic
Subtraction: a − b = a + (−b)
Examples:
• 5 − 3 = 2
• 3 − 5 = -2
• -4 − 6 = -10
• -3 − (-2) = -1
Practice
Compute: 7 − 9, -5 − 3, 6 − (-2), -4 − (-7)
Practical problem: night temperature -2°C, daytime +3°C. Find change.
Consolidation
Pair work: discuss solutions, check calculations, explain steps.
Reflection
Discuss applications (temperature, finance, water levels).
Conclusion
Summary, brief feedback, mention results (5–10%).

Teaching methods: explanation, practical work, pair work, visualization, discussion.

Frequently Asked Questions

What is subtraction?
Finding the difference between two numbers.

How to subtract a negative number?
Subtracting a negative number equals adding its opposite: a − (-b) = a + b.

Example:
5 − 3 = 2, -4 − 6 = -10

How to determine the sign of the result?
Use the rule of addition with the opposite number.

Where is subtraction used?
Mathematics, temperature, finance, practical calculations.

Other KSPs in this class

This Grade 6 Mathematics lesson plan on “Equations” helps teachers teach students to understand equations, create them from problem statements, solve, and check the results.
Математика • 6 grade
This Grade 6 Mathematics lesson plan on “Dividing Negative Numbers” helps teachers teach students rules for dividing positive and negative numbers, understand the sign of the quot…
Математика • 6 grade
This Grade 6 Mathematics lesson plan on “Substituting Values” helps teachers teach students to substitute specific numbers into expressions with variables, calculate the result co…
Математика • 6 grade
This Grade 6 Mathematics lesson plan on “Expressions with Variables” helps teachers teach students to understand, create, and calculate algebraic expressions containing variables …
Математика • 6 grade
This Grade 6 Mathematics lesson plan on “Multiplication of Decimal Fractions” helps teachers teach students to correctly multiply decimals, developing calculation skills and the a…
Математика • 6 grade
This Grade 6 Mathematics lesson plan on “The Fundamental Property of Proportions” helps teachers teach students the key rule of proportions and how to apply it in solving problems.
Математика • 6 grade