Curated OER
Exploring Integers
Students explore and implement the rules for adding, subtracting, multiplying, and dividing negative integers. The rules for each of the operations are reviewed and applied to solve a variety of problems.
Curated OER
Exploring Integers
Students implement rules for adding, subtracting, dividing, and multiplying negative integers. They write rules for each mathematical operation of negative numbers. In groups, students complete number operations. Using PDAs, they share...
Curated OER
Well,Well!
Second graders explore and solve a math word problem that involves a series of single digit additions and subtractions. They brainstorm ways to solve the problem, independently solve the problem using drawings, and discuss the various...
Curated OER
Introduction to Pre-Algebra
Students explore adding and subtracting positive numbers. Students discuss the use of algebra in our daily lives. They examine the algebraic equations and observe their solutions. Students work on the board and at their desks to solve...
Curated OER
Subtraction
First graders write and illustrate a story for a subtraction problem subtracting from the number ten. Students explore subtraction situations by using counters to represent a familiar number- based literature selection. Students role...
Curated OER
Solving Systems by Elimination
Students review solving absolute value equations. They watch as the teacher demonstrates solving a system of linear equations by addition. Students practice working problems by multiplying to obtain opposite cooefficients, and then...
Curated OER
Relating Division and Subtraction
Third graders relate the process of division to subtracting equal groups. Through guided practice and teacher demonstration, they complete division problems using a subtraction method. Students complete problems independently for...
Curated OER
Adding in Parts
Third graders are able to split whole numbers into parts. They make numbers up to a tidy number. Students add and subtract tenths to make a decimals number into a whole number. They are able to add whole numbers up to three digits.
Curated OER
Matrix Operations
Young scholars solve problems using matrices. In this algebra instructional activity, students add, subtract and multiply matrices. They use the graphing calculator to simplify and graph linear equations.
Curated OER
Translating Word Phrases into Algebraic Expressions
Students view a PowerPoint and practice writing algebraic expressions from word phrases. In this algebra lesson, students utilize phrases such as, "plus, minus, sum, difference, increased by and subtracted from." There are 5 problems on...
Curated OER
Polynomials
Ninth graders classify and solve polynomials. They use algebra tiles to add or subtract polynomials. Students solve the area of specific rectangles using algebra tiles. Students identify coefficients and classify polynomials.
Curated OER
Rollie-Pollie - - Ceramic Art
Students are introduced to a variety of sculpting techniques: rolling, pinching and scoring. They practice utilizing additive and subtractive processes in making simple sculptural forms to depict bugs. Each student also interprets...
Curated OER
Checking Account
Students keep track of finances in a check register. In this checking account lesson plan, students practice writing checks and deposit slips as they add and subtract decimal amounts in order to balance a checkbook in a register.
Curated OER
One-Digit Addition and Subtraction (B)
For this addition and subtraction worksheet, learners find the sums and differences of one-digit numbers. Students solve 49 problems.
Curated OER
Two-Digit Addition and Subtraction (A)
In this two-digit addition and subtraction worksheet, students solve with mixed regrouping and no regrouping. Students solve 49 problems.
Curated OER
Two-Digit Addition and Subtraction (B)
In this adding and subtracting two-digit numbers worksheet, students find the sums using mixed regrouping and no regrouping. Students solve 49 problems.
Curated OER
Two-Digit Addition and Subtraction No Regrouping (B)
In this adding and subtracting two-digit numbers worksheet, students find the sums and differences with no regrouping. Students solve 36 problems.
Curated OER
Simplify Expression Using the Order of Operations
Allow learners to explore both the right and wrong way of completing equations with the order of operations. They discuss how the order in which operations are performed affects the outcome of a problem. A fun "trick" using order of...
Curated OER
Real Numbers in the Real World
Delve into the concept of operating on the set of real numbers! In this operating with the set of real numbers instructional activity, pupils perform order of operations on the set of real numbers using a calculator.
EngageNY
Summarizing Deviations from the Mean
Through a series of problems, learners determine the variability of a data set by looking at the deviations from the mean. Estimating means of larger data sets presented in histograms and providing a way to calculate an...
EngageNY
Addition and Subtraction Formulas 1
Show budding mathematicans how to find the sine of pi over 12. The third instructional activity in a series of 16 introduces the addition and subtraction formulas for trigonometric functions. Class members derive the formulas using...
Curated OER
Subtracting Two-Digit Numbers
In this math worksheet, students solve three word problems involving subtraction. The first problem is guided. Students use the questions to solve the problem. Students solve two more problems without the guide questions.
Curated OER
North vs. South
Students use information about the Union and Confederate troops to create a bar graph. In this graphing lesson, students graph troop information on a bar graph, color coding the information. Students then find the differences...
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