Lessons tagged with "subtract"
Subtract Numbers by Counting Down
- Grade:
- 1
- Subject:
- Math
This operations and algebraic thinking lesson covers subtracting numbers by counting down. The lesson includes research-based strategies and strategic questions that prepare students for assessments. In this lesson, students read the subtraction problem and then subtract the numbers by counting down. A number chart is provided to keep them on track. Word problems are also used. They finish by reading the fact family aloud.
Subtract Two-Digit Numbers (With Decomposing)
- Grade:
- 2
- Subject:
- Math
This number sense lesson focuses on subtracting numbers (two digits long). The lesson includes research-based strategies and questions that help prepare students for assessments. In this lesson, students determine if regrouping is needed. Then, they subtract digits in the ones place, and in the tens place. Finally, students read the problem and sum aloud. In addition to the lesson, there are "lining up subtraction" flashcards along with seven pages of Independent Practice and review with questions modeled after current adaptive testing items.
Solve Two-Step Word Problems with an Unknown (4 Operations)
- Grade:
- 3
- Subject:
- Math
Solve two-step word problems using the four operations. Represent these problems using equations with a letter standing for the unknown quantity. Assess the reasonableness of answers using mental computation and estimation strategies including rounding.
Subtract Multi-Digit Numbers With Decomposing
- Grade:
- 3
- Subject:
- Math
This lesson covers how to subtract numbers with decomposing. The lesson includes research-based strategies and strategic questions that prepare students for assessments. In this lesson, students will line up the numbers by place value of their digits, subtract the digits in each place value, decompose the number (if needed), and then interpret the difference. In addition to the lesson, there are four pages of Independent Practice with questions modeled after the assessment items.
Add & Subtract Time Intervals
- Grade:
- 3
- Subject:
- Math
This measurement and data lesson covers how to solve problems involving the adding and subtracting of time intervals. The lesson includes research-based strategies and strategic questions that prepare students for assessments. In this lesson, students will identify the time intervals in a word problem, determine whether to add or subtract, and then perform the operation and interpret the result.
Subtract Whole Numbers (Standard Algorithm)
- Grade:
- 4
- Subject:
- Math
This number sense lesson focuses on subtracting whole numbers. The lesson includes research-based strategies and questions that help prepare students for assessments. In this lesson, students read the subtraction problem and line up the numbers by their place value. Then, they subtract each column (starting from the right) and regroup, if needed. Finally, students interpret the difference. In addition to the lesson, there are four pages of Independent Practice and review with questions modeled after current adaptive testing items.
Subtract Fractions with Like Denominators
- Grade:
- 4
- Subject:
- Math
This number and operations -- fractions lesson teaches students how to subtract fractions with like denominators. The lesson includes research-based strategies and strategic questions that prepare students for assessments. In this lesson, students will subtract fractions with like denominators. This lesson includes a variety of real-world examples. This lesson also covers reducing fractions.
Use Pictures to Subtract Fractions
- Grade:
- 4
- Subject:
- Math
This number sense lesson focuses on using pictures to subtract fractions. The lesson includes research-based strategies and questions that help prepare students for assessments. In this lesson, students represent the difference of the fractions by shading the number of equal parts. Then, they subtract fractions by using the pictures (keeping the common denominator and finding the numerator by subtracting the number of equal parts). In addition to the lesson, there are four pages of Independent Practice and review with questions modeled after current adaptive testing items.
Subtract Multi-Digit Numbers (with Decomposing)
- Grade:
- 4
- Subject:
- Math
This number and operations in base ten lesson teaches students how to subtract multi-digit numbers. The lesson includes research-based strategies and strategic questions that prepare students for assessments. In this lesson, students will extend their knowledge of multi-digit subtraction by adding numbers up to the hundred thousands. Students will apply the standard addition algorithm with a focus on correctly lining up the numbers by place value and decomposing digits correctly. This lesson also contains real-world examples for students to practice with.
Subtract Decimal Numbers
- Grade:
- 5
- Subject:
- Math
This number sense lesson focuses on subtracting decimal numbers. The lesson includes research-based strategies and strategic questions that prepare students for assessments. In this lesson, students identify the numbers that are being subtracted, if needed. Then, they line up the decimal numbers by place value, making sure the decimal points line up. Finally, they subtract, line up the decimal point in the difference, and interpret the difference. In addition to the lesson, there are eight pages of Independent Practice and review with questions modeled after current adaptive testing items.
Subtract Fractions with Unlike Denominators
- Grade:
- 5
- Subject:
- Math
This number and operations--fractions lesson teaches students how to subtract fractions with unlike denominators. The lesson includes research-based strategies and strategic questions that prepare students for assessments. In this lesson, students create equivalent fractions to subtract fractions with unlike denominators. Reducing the results is not addressed. This lesson focuses on unlike denominators that require both fractions to be changed.
Solve One-Step Equations (Addition & Subtraction)
- Grade:
- 6
- Subject:
- Math
This expressions and equations lesson teaches students how to solve one-step equations. The lesson includes research-based strategies and strategic questions that prepare students for assessments. In this lesson, students solve one-step equations with a variety of operations. The focus of this lesson is to solve one-step equations related to word problems.
Add & Subtract Multi-Digit Decimals
- Grade:
- 6
- Subject:
- Math
This number system lesson teaches students how to add and subtract multi-digit decimals. The lesson includes research-based strategies and strategic questions that prepare students for assessments. In this lesson, students will solve multi-digit addition and subtraction problems. The focus of this lesson is correctly arranging problems based on place value before performing the standard algorithms for addition or subtraction. This lesson also includes a variety of real-world examples and word problems for students to complete.
Add & Subtract Rational Numbers on a Number Line
- Grade:
- 7
- Subject:
- Math
This number system lesson covers how to add and subtract on a number line. The lesson includes research-based strategies and strategic questions that prepare students for assessments. In this lesson, students first rewrite subtraction to add the opposite if needed. Then, they locate the first addend on the number line and move the distance of the second addend. Finally, they interpret the answer.
Add & Subtract Rational Numbers
- Grade:
- 7
- Subject:
- Math
This number system lesson covers how to add and subtract rational numbers. The lesson includes research-based strategies and strategic questions that prepare students for assessments. In this lesson, students first rewrite subtraction to add the opposite if needed. Then, they determine which addition rule to use, apply it, and interpret the answer.
Add & Subtract Expressions
- Grade:
- 7
- Subject:
- Math
This expressions and equations lesson covers how to add and subtract expressions. The lesson includes research-based strategies and strategic questions that prepare students for assessments. In this lesson, students will rewrite two grouped expressions as the sum of all terms, then identify like terms, and combine them. Finally, they will interpret the equivalent expressions.
Subtract Integers (Sign Rules)
- Grade:
- 7
- Subject:
- Math
This number sense lesson focuses on subtracting integers. The lesson includes research-based strategies and strategic questions that prepare students for assessments. In this lesson, students read the problem and change the subtraction problem to add the opposite. Then, they use the given addition integer rules to solve, identifying whether the answer has the same sign or different sign. In addition to the lesson, there are four pages of Independent Practice and review with questions modeled after current adaptive testing items.
Add, Subtract, and Multiply Polynomials
- Grade:
- High School, High School 9-10, High School 11-12
- Subject:
- Math
Subtract Polynomials
- Grade:
- High School
- Subject:
- Math
This Algebra 1 lesson teaches students how to subtract polynomials. The lesson includes research-based strategies and strategic questions that prepare students for assessments. Students will write the first polynomial, and then rewrite the second with opposite signs. Then, they will align the like terms of the second under the first and remove the parentheses. Finally, they will combine like terms and perform the operations. In addition to the lesson, there is one page of Independent Practice and three pages of periodic review.
Add, Subtract, and Multiply Polynomials
- Grade:
- High School, High School 9-10, High School 11-12
- Subject:
- Math
Add, Subtract, and Multiply Polynomials
- Grade:
- High School, High School 9-10, High School 11-12
- Subject:
- Math