TEKS 5.3K: Add and Subtract Positive Rational Numbers
Add and Subtract Whole Numbers Fluently
About this lesson
Learning Target: I can add and subtract whole numbers fluently.
Focuses On:
- Adding and subtracting multi-digit numbers fluently using the algorithm
Builds On:
4.4A:
Add and subtract whole numbers and decimals to the hundredths place using the standard algorithm
Next Level:
7.3A:
Add, subtract, multiply, and divide rational numbers fluently
Read More:
This lesson builds on the foundation students have to add and subtract numbers fluently using the standard algorithm.
The instructional block in this lesson helps students break down a multi-step problem and has them practice identifying what operations are needed to solve a problem. It sets students up for success to add and subtract decimal numbers.
Grade 5MathTEKS 5.3KAdd and Subtract Decimals
About this lesson
Learning Target: I can add and subtract decimal numbers fluently.
Focuses On:
- Lining up numbers by place value to add and subtract
Builds On:
4.4A:
Add and subtract whole numbers and decimals to the hundredths place using the standard algorithm
Next Level:
7.3A:
Add, subtract, multiply, and divide rational numbers fluently
Read More:
This lesson is designed to transfer adding and subtracting using the algorithm with whole numbers to decimal numbers.
The two instructional blocks in this lesson are adding decimals and subtracting decimals.
The first instructional block emphasizes lining up numbers by place value to ensure the correct digits are added together. Students practice solving real-world decimal addition problems.
The second instructional block has students working with subtraction. Students practice lining up the digits in order solve subtraction decimal problems and apply this skill to real-world problems.
Grade 5MathTEKS 5.3KAdd and Subtract Fractions Fluently
About this lesson
Learning Target: I can add and subtract fractions fluently.
Focuses On:
- Using models to represent addition and subtraction of fractions
- Building foundations for common denominators using fraction strips
Builds On:
5.3H:
Represent and solve addition and subtraction of fractions with unequal denominators referring to the same whole using objects and pictorial models and properties of operations
4.3E:
Represent and solve addition and subtraction of fractions with equal denominators using objects and pictorial models that build to the number line and properties of operations
Next Level:
7.3A:
add, subtract, multiply, and divide rational numbers fluently
Read More:
This lesson is designed to build upon conceptual understandings of adding and subtracting fractions through models. In 4th grade, students worked to add and subtract fractions with common denominators. In 5th grade, students learn to determine a common denominator to aid in adding and subtracting.
The two instructional blocks in this lesson are add fractions and subtract fractions.
In the first instructional block, students solve real-world problems by adding fractions with unlike denominators.
The second instructional block has students continuing to solve real-world problems that require them to find common denominators before subtracting fractions.
Ample models are built throughout and teacher autonomy to add additional problems on the fly is encouraged using the models provided.
Grade 5MathTEKS 5.3K