Addition: The mathematical operation of combining two or more numbers to find their total sum.
• 3 + 4 = 7 (three plus four equals seven)
• 8 + 5 = 13 (eight plus five equals thirteen)
• 12 + 6 = 18 (twelve plus six equals eighteen)
Addition combines quantities to find a total amount
The plus sign (+) indicates addition
Look for key words like "more," "altogether," "total," "sum"
Work with problems where the sum is 20 or less
Used to combine groups of objects or find totals in mathematical problems.
• Symbol: + (plus sign)
• Keywords: plus, add, total, sum, altogether, more, combined
• Purpose: Finding the total of two or more quantities
Sum: The result obtained when numbers are added together.
In 7 + 6, the numbers are 7 and 6
7 + 6 = 13
The sum is 13 (the answer to the addition problem)
"What is the sum of 7 and 6?" Answer: 13
The sum is the final answer when you add numbers together.
• Definition: The answer to an addition problem
• Location: Always comes after the equals sign (=)
• Synonyms: Total, result, answer
Addend: Any number that is being added in an addition problem.
In 8 + 4 = 12, we have an addition equation
The numbers 8 and 4 are being added together
8 is the first addend, 4 is the second addend
12 is the sum (the result of adding the addends)
Addends are the numbers you add together to get the sum.
• Definition: Numbers being added in an addition problem
• Quantity: Can be 2 or more addends
• Position: Before the equals sign in an equation
Addition Keywords: Words and phrases that indicate addition is needed to solve a problem.
Mathematical Vocabulary: Specialized terms used in mathematics to describe operations and concepts.
Word Problems: Mathematical problems presented in the form of stories or real-world scenarios.
- Read the problem carefully: Look for addition keywords
- Circle or highlight: Mark the keywords you find
- Translate to math: Convert words to mathematical symbols
- Solve the problem: Perform the indicated operation
- Check your work: Verify the answer makes sense
• Combination: altogether, combined, in all, total
• Increase: more, plus, added to, increased by
• Sum: sum, total, altogether, combined
Equals: The symbol (=) that shows two expressions have the same value.
The equals sign shows that both sides of the equation are equal
The equals sign (=) consists of two parallel horizontal lines
Shows that the left side equals the right side: 4 + 6 = 10
Both sides must have the same value
Used to show that two expressions have the same value.
• Symbol: = (two parallel lines)
• Meaning: Both sides are equal in value
• Purpose: Shows balance in equations
Equation: A mathematical statement that shows two expressions are equal.
An equation has expressions on both sides of the equals sign
Both sides of the equation must be equal in value
Find the missing value that makes both sides equal
Check that both sides have the same value
Equations show that two expressions have equal values.
• Components: Left side, equals sign, right side
• Purpose: Shows equality between expressions
• Format: Expression = Expression
Mathematical Vocabulary: Specialized terms used to describe mathematical concepts and operations.
Word Wall: A visual display of important vocabulary terms for reference and learning.
Addition Terms: Words related to the addition operation and its components.
Keywords: Words that indicate which mathematical operation to use in word problems.
Mathematical Symbols: Special characters that represent mathematical operations and relationships.
Conceptual Understanding: Deep comprehension of mathematical ideas beyond rote memorization.
- Introduce new terms: Present vocabulary with clear definitions
- Provide examples: Show how terms are used in context
- Visual representations: Use pictures and diagrams to reinforce concepts
- Practice applications
• Addition: Combining numbers to find a total
• Sum: The result of adding numbers
• Addend: Numbers being added together
• Equals: Showing equality between expressions
• Equation: Mathematical statement showing equality
• Keywords: Words indicating addition (more, total, altogether)
Recognition, Definition, Application, Fluency
Analysis: The chart shows progress in different aspects of vocabulary learning.
- Recognition: Ability to identify vocabulary terms
- Definition: Understanding of term meanings
- Application: Ability to use terms in context
- Fluency: Automatic recall and use of vocabulary