EngageNY
Read Expressions in Which Letters Stand for Numbers
Pencil in the resource on writing verbal phrases into your lesson plans. The 15th installment of a 36-part module has scholars write verbal phases for algebraic expressions. They complete a set of problems to solidify this skill.
Curated OER
Complex Numbers
The class practices, on paper and/or on a TI graphing calculator the concepts of how to add, multiply, divide and subtract complex numbers using the correct property.
Math Mammoth
Add and Subtract Rational Expressions With Unlike Denominators
The class solves 19 problems involving rational expressions. They find the least common denominator of fractions, make fractions equivalent and then add or subtract fractions containing rational expressions.
Mathematics Assessment Project
Using Positive and Negative Numbers in Context
Measure the temperature of your math class with a temperature-based lesson on adding and subtracting rational numbers. The thermometer serves as a vertical number line for learners as they work together to solve a temperature change...
Schoolcraft College
Trigonometry
This trigonometry textbook takes the learner from a basic understanding of angles and triangles through the use of polar coordinates on the complex plane. Written by a mathematician-engineer, examples and problems here are used to...
Curated OER
Yummy Math
Young mathematicians use bags of Skittles to help them gain practice in graphing and organizing data. They work in pairs, and after they have counted and organized their Skittles, they access a computer program which allows them to print...
Illustrative Mathematics
Similar Triangles
Proving triangles are similar is often an exercise in applying one of the many theorems young geometers memorize, like the AA similarity criteria. But proving that the criteria themselves are valid from basic principles is a great...
EngageNY
Proving Trigonometric Identities
Young mathematicians first learn the basics of proving trigonometric identities. They then practice this skill on several examples.
Curated OER
Using Fact Families
In this math worksheet, students write two addition problems and two subtraction problems for each fact family. Students also write in the missing addition or subtraction sign and answer 6 questions about a word problem.
Rice University
Precalculus
Take a step beyond Algebra 2. Learners use the eBook to learn concepts from the typical Precalculus course. Content starts off with a short review of functions in general and moves on to the basic functions, finishing up with more...
Curated OER
Matrices at the Speed of Light!
Perform operations using matrices in this algebra lesson. Middle schoolers add, subtract, and multiply matrices. Additionally, they solve systems of equations using matrices.
Curated OER
Symbols in Algebra
Learners name and sketch numerical expressions. For this order of operation lesson, students add, subtract, multiply and divide using the correct order of operation. They perform four specific calculations for their motivation lesson.
Third Rail Games
Factor Samurai
Master composite and prime numbers with this fast-moving game. Using your sword, slice those composite numbers and watch them break up into factors. Slice again if those factors are composite. However, watch out for prime numbers,...
Curated OER
Math Lesson Plan
The students will be able to identify the characteristics and the value of a penny and a nickel. The students will also be able to count groups of pennies and nickels. The lesson uses multiple intelligences.
Curated OER
Solving the Problem
Students increase problem solving strategies by completing a "Problem of the Day" using a math manipulative. They identify key words and determine the operation to use. They perform mathematical tasks using the computer program Math Keys.
Curated OER
Addition and Subtraction of Whole Numbers
Fourth graders answer word problems based on the fifty states. In this math word problem lesson, 4th graders understand that differences in problems require different math operations.
Curated OER
Dried Meat
Learners investigate the traditional method of drying meat used by Native Americans. They apply math concepts such as ratio, proportion, percent, and scientific notation to determine the amount of meat the is dried from an animal using...
Curated OER
Digit/Symbol Cards
Pupils learn to recognize the digits from 1-10 and the four math operation signs by cutting apart the digit and symbol cards. There are no directions about what students are to do with them.
Curated OER
Operations with Integers (D)
In this integer operations practice learning exercise, students sharpen their math skills as they solve 28 problems that require them to add, subtract, multiply, and divide integers.
Curated OER
Operations with Integers (F)
In this integer operations practice learning exercise, students sharpen their math skills as they solve 28 problems that require them to add, subtract, multiply, and divide integers.
Curated OER
Operations with Integers (G)
In this integer operations practice worksheet, students sharpen their math skills as they solve 28 problems that require them to add, subtract, multiply, and divide integers.
Curated OER
Operations with Integers (E)
In this integer operations practice worksheet, students sharpen their math skills as they solve 28 problems that require them to add, subtract, multiply, and divide integers.
Curated OER
Operations with Integers (A)
In this operations with integers activity, students solve the integer problems with addition, subtraction, multiplication, and division. Students solve twenty eight problems.
Curated OER
Operations with Integers (B)
In this integer worksheet, students solve the integer equations using the mathematical operations of addition, subtraction, multiplication and division. Students solve 28 problems.