Curated OER
When Close Enough is Good Enough
Young scholars describe the difference between an estimate and a guess. They create reasonable estimates based on observation and hands-on activities. They synthesize estimated based on interaction with online activities.
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How Machines Help Us Stay Healthy
Students visit different departments at a local hospital to see how machines help peoples such as the CAT scan machine. They build a model of such a machine that shows how patients are moved in and out of the machine.
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Multiplying with Packages and Letters
Students explore multiplication. In this multiplication problem solving lesson, students view a video clip which demonstrates loading a truck with packages. Students fill in a blank array to represent 1"X 2" and the multiples when...
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Division Equations
In this division worksheet, students solve algebraic problems containing fractions. This one-page worksheet contains 11 problems. Answers are provided. This worksheet may be completed on-line or produced in printed form.
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Multiplying Decimal Numbers: Using Zeros as Placeholders
Explore decimals with upper graders. They solve problems from their textbook involving decimal multiplication. Afterward, as a class, they check their answers by comparing them to those projected with an overhead projector.
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Patterns Here, There, and Everywhere!
Upper graders access the Microsoft Word program and create patterns by utilizing certain keys on the keyboard. They create picket fences, smiley faces, and hearts. It seems that this lesson plan has as much to do with keyboarding skills...
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You Can Stop!!
Young scholars analyze smoking behavior based on peer pressure. In this health lesson plan, students read and complete worksheets on the internet concerning the behaviors associated with smoking. They summarize what they have...
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Up We Go
First graders examine the use of number lines in problem solving situations in this series of lessons. They participate in activities in which they move forward and backward on number line on the playground before doing paper and pencil...
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The Multiplier (larger 2-digit by 1-digit numbers)
Pupils utilize number sense applications to multiply two digit numbers. They use "The Multiplier" and Internet source to partition and solve 2 digit by 1 digit multiplications. Students describe how to solve 2-digit by 1-digit...
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Ordinal Positions in a Sequence
Students study ordinal positions through class reading and discussion, complete an Animal Parade activity sheet and Internet activity to demonstrate knowledge about ordinal positions with 100% accuracy, and play a math computer game.
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The Multiplier (2-digit by 2-digit numbers)
Fourth graders Split a 2-digit number into tens and ones. They use The Multiplier to partition and solve 2-digit by 2-digit multiplications. They describe how to solve 2-digit by 2-digit multiplications using a diagram.
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The divider (mixed number quotients)
his unit uses two of the series of four Divider learning objects to support the students division of whole numbers where the quotient is a mixed number (whole number and fraction). The Divider encourages the students to split a division...
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PLANETS IN PROPORTION
Middle schoolers discover scales for both the solar bodies' relative sizes and their distances from the sun. They find equatorial circumference and volumes of their solar bodies. Students apply estimation strategies and proportioanl...
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Addition Worksheet: Totals 19 or Less #1
In this addition worksheet, students complete a total of 35 problems, all answers to problems total 19 or less. Worksheet included links to answers and additional worksheets.
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Addition Worksheet: Totals 10 or Less #2
In this addition worksheet, students complete a total of 35 problems, all answers to problems total 19 or less. Worksheet included links to answers and additional worksheets.
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Addition: Sums to 18
For this addition worksheet, students complete a total of 30 problems, all answers to problems total 18 or less. Worksheet included links to answers and additional worksheets.
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Subtraction Worksheet : Numbers to 19 (1 of 3)
In this subtraction learning exercise, students find the differences to 53 horizontal and vertical subtraction problems. They work with numbers up to 19 and do not regroup while working.
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Subtraction - Numbers to 19 ( 3 of 3)
In this subtraction worksheet, students find the differences in 30 vertical problems which use numbers up to nineteen. They do not regroup as they solve the problems in which they subtract a single digit number from a two digit number.
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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2 digit subtraction
Second graders subtract numbers 0 through 10 from 2 digit numbers using different subtraction methods. In this subtraction lesson plan, 2nd graders practice crossing out numbers in a number line, using a 10, and using their fingers to...
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The Number Toolbox-Vocabulary Test
In this numbers vocabulary worksheet, students complete a 10 question test, matching "number" vocabulary terms with their correct definition. Answers are provided on page 2.
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Place Value
First graders practice place value by completing problems that allow them to group 10 items together to create groups of 10 and see what is left over. For this place value lesson plan, 1st graders use cups to put 10 items in them, and...
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Numbers and Operations- 24
Students construct number sentences. In this computation lesson, students participate in a game using four numbers to make the number 24.