INTRODUCTION

The Relevance of the Topic

Addition is one of the fundamental operations of Mathematics that we use every day. It's like the building blocks for everything in numbers. Imagine that numbers are pieces of a puzzle and addition is the glue that joins these pieces! Understanding the basic facts of addition helps to assemble this puzzle more easily.

Contextualization

Addition is the first mathematical operation that children learn because it is natural to count things together. From sharing snacks to counting how many friends are playing in the playground, adding is everywhere! In our curriculum, learning to add is the first step before exploring other operations such as subtraction, multiplication, and division. Basic addition facts are like the first pages of an exciting storybook with numbers that are just beginning!

THEORETICAL DEVELOPMENT

Components of Addition

• Sum: joining of two or more numbers.
  • Relevance: basis for more complex mathematical operations.
  • Characteristics: combines different quantities into a single total amount.
• Addends: the numbers that are added.
  • Importance: understanding that each part contributes to the whole.
  • Identification: in "2 + 3 = 5", "2" and "3" are the addends.
• Total or Sum: result of the addition.
  • Concept: represents the final amount after adding the addends.
  • Example: in "2 + 3 = 5", "5" is the total.

Key Terms

• Addition: mathematical operation that combines quantities.
  • Operator +: symbol that indicates addition. Connects the addends.
• Equality =: expresses that two values are the same.
  • Where to Use: separates the addends and the sum, like in "2 + 3 = 5".
• Number: a fundamental concept that represents a specific quantity.
  • Use: numbers are the basic pieces with which we perform additions.

Examples and Cases

• Joining Objects:
  • Example: 3 apples and 2 apples become 5 apples when joined together.
  • Theory: each apple is an addend, and the total represents all together.
• Using Fingers:
  • Practice: raise 2 fingers and then 4 more fingers to count up to 6.
  • Understanding: visualization of the addends and the total with body parts.
• Adding Money:
  • Case: 2 coins of R$1 and 3 more coins of R$1 result in R$5.
  • Application: addition in the context of monetary values teaches about basic financial mathematics.

DETAILED SUMMARY

Relevant Points

• Addition Practice: Addition is practiced by joining groups of objects, like toys or fruits. Each item is an addend that, when summed, results in the total.
• Visualization: The use of visual objects and fingers aids in understanding addition. This makes the concept of adding more tangible and easier to understand.
• Daily Life: Everyday examples, like adding money, snacks, or game pieces, show how addition is useful in real situations.
• Addition Vocabulary: Key words like "sum", "addends", "total", "addition", "operator", and "equality" are essential. Understanding these terms helps in understanding the operation of addition.

Conclusions

• Addition is Fundamental: Addition is the basis for understanding more advanced operations. Mastery of basic facts is crucial.
• Visual Understanding: Visualization through concrete objects and fingers facilitates learning and memorization of addition processes.
• Applicability: Addition is not just a mathematical concept, but a practical skill applicable in various everyday situations.

Exercises

1. Combining Colors:
   • Add 2 blue markers with 3 red markers. How many markers do you have in total?
2. Sum of Toys:
   • If you have 4 cars and get 2 more, how many cars do you have now?
3. Counting Sweets:
   • If you have 5 candies and your friend gives you 1 more candy, how many candies do you have?