Lesson Planet Article
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Adding Humor to Your Lessons is No Laughing Matter

For Teachers 6th - 12th
Try these seven ways to inject laughs into your curriculum, while staying on track academically.
Interactive1:45
Scholastic

Study Jams! Classify Triangles

For Students 5th - 8th Standards
Jam on with this multi-faceted activity teaching triangle classification. Start with a learner-paced lesson describing the different qualities of triangles and follow with a fun karaoke session. Also provided are two types...
Lesson Plan
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Adding and Subtracting with Negative Integers

For Teachers 5th - 10th
Students add and subtract using negative integers. In this negative integers lesson plan, students listen to examples provided by the teacher and then complete problems where they add and subtract negative integers.
Worksheet
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Student Exploration: Adding Fractions

For Students 5th - 6th
Learners complete activities to learn how to add fractions. In this fractions lesson, students complete a set of prior knowledge questions for fractions. Learners then review fraction vocabulary while solving a fraction word problem.
Worksheet
Curated OER

Adding and Subtracting Like Mixed Numbers (5)

For Students 5th
In this fraction addition and subtraction worksheet, 5th graders add and subtract the like mixed number fractions. Students solve 10 fraction problems.
Worksheet
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Adding and Subtracting Like Mixed Numbers (4)

For Students 5th
In this mixed number fraction worksheet, 5th graders add and subtract the like mixed number fractions. Students solve 10 fraction equations.
Worksheet
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Adding and Subtracting Like Mixed Numbers (3)

For Students 5th
In this mixed number fractions worksheet, 5th graders add and subtract the like mixed number fractions. Students solve 10 fraction equations.
Worksheet
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Mystery Numbers

For Students 3rd - 4th
In this mystery number worksheet, students begin with a 3 digit number and using the code key, find the sum or difference in each shape as a spiral puzzle is solved.
Worksheet
Curated OER

Adding and Subtracting Fractions and Mixed Numbers [8]

For Students 4th - 6th
In this fractions/mixed number activity, students solve a total of 10 addition/subtraction problems; answers are included on page 2.
Worksheet
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Adding Fractions

For Students 6th - 9th
In this fractions learning exercise, students learn how to add 2 fractions together. They first read an explanation of how to solve these problems, which includes example problems. Students then solve the 6 fraction addition problems in...
Worksheet
Curated OER

Add Mixed Numbers with Like Denominators (D)

For Students 5th
In this fraction addition worksheet, 5th graders add the numerators of the mixed number fractions with like denominators to solve the 14 problems.
Lesson Plan
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Adding and Subtracting Fractions

For Teachers 4th - 5th
In this fractions worksheet, students complete a total of 10 problems, adding and subtracting mixed numbers and fractions. A reference web site is given for additional activities.
Interactive
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Rational Numbers

For Students 9th
In this Algebra I worksheet, 9th graders identify properties from the real number system and use the distributive property to collect simplify expressions with parentheses.  The one page interactive worksheet contains five multiple...
Lesson Plan
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Adding and Subtracting Fractions with Like Denominators

For Teachers 3rd - 4th
Learners add or subtract fraction parts of mixed numbers before adding or subtracting the whole number parts. In this fractions lesson plan, students learn to use a ruler to help them add and subtract fractions with like denominators.
Lesson Plan
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Adding Decimals with Hundredths

For Teachers 4th - 5th
For this worksheet, students learn to add decimal numbers to the hundredths. Students first compare adding and subtracting decimals with the corresponding fractions in 6 problems. Then students add 35 decimal numbers mentally, filling...
Lesson Plan
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Adding 3 Numbers

For Teachers 3rd
In this addition practice worksheet, 3rd graders will find the sum of 3 two-digit numbers. There are a total of 16 problems. There are pictures of bugs at the bottom.
Lesson Plan
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Adding Whole Numbers

For Teachers 1st
In this mathematical adding of three single digit numbers worksheet, 1st graders problem solve nine equations that involve three single digit numbers.
Lesson Plan
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Fraction Strips: Adding Fractions

For Teachers 3rd
Third graders problem solve using fraction strips. In this adding fractions lesson, 3rd graders create fraction strips to help identify fractional sizes (fourths, eighths, thirds) and to solve word problems.
Worksheet
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Add Mixed Numbers with Like Denominators (H)

For Students 5th
In this mixed number addition worksheet, 5th graders add the whole numbers and then the fractions in the mixed number equations. Students reduce the fractions to solve the 14 problems.
Worksheet
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Add Mixed Numbers with Like Denominators (I)

For Students 5th
In this mixed number addition worksheet, 5th graders add the whole numbers and then the fractions in the mixed number equations. Students then reduce the fraction to solve the 14 problems.
Worksheet
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Adding Decimal Numbers #3

For Students 3rd - 4th
In this decimal addition worksheet, students complete 12 problems, adding numbers with 1 decimal place. A reference web site is given for additional activities.
Lesson Plan
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Number Patterns: Triangular & Square Numbers

For Teachers 5th - 8th
Learners explore the patterns found in triangular and square numbers. In this number pattern activity, students complete a worksheet exploring the relationship between triangular numbers and square numbers.
Worksheet
Curated OER

Adding: One-Digit Numbers

For Students Pre-K - 1st
In this adding worksheet, students add two groups of single-digit numbers with pictures and record the sum in the blanks. Students solve six problems.
Worksheet
Curated OER

Adding and Subtracting Rational Expressions

For Students 9th - 11th
In this algebra worksheet, students add and subtract rational expressions using the LCM. They combine like denominators before they add and subtract the expressions. There are 8 questions.

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