Curated OER
Nouns and Verbs and Proper Nouns, Oh My!
Second graders identify nouns and verbs in written communication. They distinguish between between nouns, proper nouns, and verbs. Students discuss the difference between these parts of speech. In partners, 2nd graders write a sentences...
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Variables and Open Sentences
Fourth graders examine the purpose of variables and identify the missing variable in open sentences. They observe the teacher solve a variety of problems, complete a worksheet as a class, and independently complete another worksheet. ...
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Dividing With Decimals
In this decimal division worksheet, students solve 18 division problems. Each problem includes decimals as the dividend, divisor, or both.
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Multiplying Decimals
In this multiplying decimals worksheet, 5th graders solve 24 multiplication problems. In each problem students must multiply two decimals together.
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Time-delay Electromechanical Relays
In this physics learning exercise, students solve and write short answers to 19 questions on time-delay relays. They explain how the mechanism works and calculate the amount of delay in seconds.
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Differences in amounts
For this differences in amounts worksheet, students solve word problems where they figure out differences of amounts of two and three digit numbers. Students complete 10 multiple choice questions.
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Simplifying Fractions
In this algebra worksheet, students simplify fractions using common denominators. They solve using addition and subtraction. There are 6 questions with an answer key.
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Something's Hiding!
Second graders practice finding out how many tens and ones blocks are hidden from a given total. They mentally perform calculations involving addition and subtraction to explain the meaning of the digits in two to three digit whole numbers.
Pennsylvania Department of Education
Comparing Sets
Students count back with cubes to model subtraction problems. In this subtraction lesson plan, students compare sets of problems and record their results in a table.
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Ten Sly Piranhas: A Counting Story in Reverse
Students solve related addition and subtraction problems. In this addition and subtraction lesson, students use the book Ten Sly Piranhas by William Wise as the source of word problems for students to solve.
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The Numbers Get Larger
Second graders examine how to use mental strategies for addition and subtraction. They look at part/whole strategies for multi-digit problems and define which one would be best used for a particular problem. They use tens frames to solve...
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Fun Math 14
In this finding the difference worksheet, students subtract two-and three-digit numbers from three-digit numbers on a worksheet with a clip art next to each problem. Students solve 15 problems.
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Not So Snappy 4
For this order of operations (i.e., addition, subtraction, multiplication, division) worksheet, learners solve 4 word problems demonstrating their understanding of the concept.
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Subtract Across Zeros
In this subtraction practice worksheet, learners sharpen their problem solving skills as they solve 6 story problems that require them to subtract across zeros.
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Find Factors of a Number
In this finding factors practice worksheet, students sharpen their problem solving skills as they solve 6 story problems.
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Jack and the Beanstalk Estimation
Students use estimation and pencil-paper calculations to help Jack and his mother solve a variety of life problems. They solve problems using various math operations, i.e., addition, subtraction, and measurement.
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What Do You Think?
In this estimating sums and differences worksheet, students solve 6 problems in which the answer to a 3 digit addition or subtraction problem is estimated. Students then solve the problem for an exact answer. There will be carrying and...
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Number Stories
Students write and solve various number stories. They solve number stories using one, two and three digit numbers. Students practice writing sentences using the following 6+1 traits, ideas and content, organization, word choice and...
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Thirty Single Variable Algebraic Equation Word Problems
In this algebraic equations worksheet, student solve thirty word problems from single variable algebraic equations. Two of the thirty problems are solved as examples.
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Equal Additions
Students explore the relationships between numbers through the use of "equal addition" and "equal subtraction." Through the use of number sense, they are able to computer addition and subtraction problems mentally. Individually,...
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Not So Snappy 5
In this order of operations (i.e., addition, subtraction, multiplication, division) worksheet, students solve 5 word problems demonstrating their understanding of the concept.
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Math Card Clues
In this math instructional activity, students solve 11 math card clues. All of the clues involve addition or subtraction. For example, one card reads, "I am zero. Add on 4."
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Arrays Hooray
Second graders write and solve story problems which involve whole numbers, using addition, subtraction, multiplication, or division. They solve multiplication problems by using strategies other than counting all. They interpret and solve...