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Addition: Sums to 18
In this addition instructional activity, learners 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.
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Number Sense
First graders practice rounding 4 digit numbers using place value concepts. In this estimating sums and differences instructional activity, 1st graders explore clustering, rounding, and front end estimation as methods for rounding decimals.
Pennsylvania Department of Education
Comparing Sets
Young scholars 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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Spaghetti Measure
Middle schoolers receive a copy of a "Spaghetti Measure" task sheet along with the scoring rubric. Students preview the task and the rubric prior to starting the task. tudeThey determine the circumference of a circle of spaghetti that...
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Pythagorean Theorem Investigation
Eighth graders investigate the Pythagorean Theorem and practice applying the theorem to various triangles. Finally, in the next lesson in the sequence, 8th graders create a song or a story to help them remember the Pythagorean Theorem.
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Decimal Fractions
Students use rounding and compensating with whole numbers and explain how to use the empty number line to show additions and subtractions. They round and compensate in relation to decimal subtraction
Background
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Absolute Value Equations and Inequalities
Students explore the concept of absolute value inequalities and equations. In this absolute value inequalities and equations lesson, students discuss how to solve absolute value inequalities and equations through teacher led discussion...
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Cannot Buy Me Love
Students investigate the concepts that are related to finance and how it is used in the world. They take part in activities that are focused around the use of a spreadsheet while using a T-chart to simulate a ledger of credits and debits.
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Estimating Fish Populations
Students describe the mark/recapture method used to estimate fish populations. They explain the importance of being able to predict population numbers.
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Time For Breakfast
This unit encourages students to assess the validity of a set of statements and then plan and carry out investigations to find out whether the statements are true. Students then carry out statistical investigations of their own.
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Circles and Clocks, Shapes and Time
Learners work in groups to research clocks and practice telling time. In this telling time lesson, students use the computer program ProQuest to study circles, including radius and diameter, and practice drawing circles using a compass....
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How Many Months?
Students investigate the first Peter the Mint Eagle, who lived at the Philadelphia Mint from 1830 to 1836. They determine how many months Peter was there and use pictures, numbers, equations, and/or words to explain how they came up with...
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How Cool Is Your Environment?
Students study the formulas for calculating heat energy and how to convert Celsius to Fahrenheit. They apply the formulas on a worksheet.
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Subtraction - Numbers to 12
In this subtraction worksheet, 1st graders solve for the differences in 30 vertical problems in which they use numbers up to 12.
Curated OER
Uncle Bubba Is Dead!
Students spend imaginary inheritance of $100,000 on a home and furnishings.