Interactive
CK-12 Foundation

Quadratic Functions and Equations

For Students 9th - 12th Standards
The form of a quadratic function paints a picture of its graph. Young mathematicians explore this connection by locating key features on a graph and then writing the corresponding equations. The interactive tutorial highlights key...
Interactive
CK-12 Foundation

Exponential Decay: Cool Sunglasses

For Students 10th - 12th Standards
Who wouldn't want to wear four pairs of sunglasses? Each pair of sunglasses reduces the percent of incoming light by one-half. An interactive tutorial helps young mathematicians build a graph that models this scenario. They...
Lesson Plan
Curated OER

2, 4, 6, 8 . . .What Do We Appreciate-Patterns, Patterns, Patterns

For Teachers 7th - 8th
Students discover and predict patterns in a numerical sequence. Through the Internet and video segments, students begin with basic number patterns and extend their knowledge into higher math skills. They will also create new patterns...
Lesson Plan
Curated OER

Last Will and Testament of Amanda Hugandkiss

For Teachers 11th
Eleventh graders apply mathematical knowledge and reasoning skills to solve a real life problem.  In this algebra lesson, 11th graders use a variety of problem solving skills to solve non-routine problems of increasing...
Lesson Plan
Curated OER

Innovation in a Bag

For Teachers 8th - 10th
Young scholars create a business plan to start up their own business. In this algebra lesson plan, students think of a product they can produce and sell. They create on paper what they should do and then put into practice creating a mock...
Lesson Plan
Curated OER

Robot Sketcher

For Teachers 9th - 12th
Students analyze and solve word problems. In this algebra lesson, students explore their reasoning skills as they analyze a problems and come up with the correct steps to solve it. They create a plan and execute it correctly.
Lesson Plan
Curated OER

Still More Lollies

For Teachers 4th
Fourth graders listen to the problem to the class and think about how they solve the problem and to discuss it with their friends using number sentences in their written record of the solution.
Lesson Plan
Curated OER

Conversions That Make Cents

For Teachers 8th
Eighth graders practice calculating problems using addition, subtraction, multiplication and division. They estimate solutions to algebraic problems. They also graph their solutions.
Lesson Plan
Curated OER

Is Bigger Always Better?

For Teachers 6th - 8th
Explore rational numbers with the young mathematicians in your class. They will investigate decimals, fractions, and percents before ordering and comparing rational numbers. This multi-day unit includes differentiation activities and...
Lesson Plan
Curated OER

Making Money and Spreading the Flu!

For Teachers 9th - 11th Standards
Paper folding, flu spreading in a school, bacteria growth, and continuously compounded interest all provide excellent models to study exponential functions. This is a comprehensive resource that looks at many different aspects of...
Lesson Plan
Curated OER

Understanding Proportions and Scale Drawings

For Teachers 7th - 8th
Proportions are ratios found using multiplication or division. Middle schoolers solve measurement problems, find a figure's missing dimension, and find the distance between two points. Resource features four lesson plans with detailed...
Worksheet
Curated OER

Multiplication, Division, and Money

For Students 5th - 6th
In this math review worksheet, students complete problems involving multiplication, division, money, and equations. Students complete 10 multiple choice problems.
Lesson Plan
Curated OER

Weaving a Story

For Teachers 1st - 2nd
It's time to investigate patterns! First and second graders construct a paper weaving using a hundreds chart, then use the Ti-10 calculator to make patterns such as adding 3 each time. Learners remove multiples of three from the hundreds...
Worksheet
Curated OER

Equation Word Problems, Vol. 2

For Students 5th - 8th
Use this equations worksheet to have your learners solve word problems containing equations with variables. They complete 10 multiple choice questions.
Worksheet
Curated OER

Equation Word Problems, Vol. 1

For Students 5th - 8th
Learners solve word problems and regular number problems having to do with equations with variables. They complete 10 problems.
Worksheet
Curated OER

Kakuro Puzzle

For Students 1st - 12th
In this math worksheet, students solve the number puzzle looking for the missing values. The sheet is intended to be a teacher's guide.
Lesson Plan
Curated OER

The Language of Mathematics

For Teachers 4th - 6th
Students integrate the language, concepts and skills of math into the daily routine and classroom environment. They think mathematically by participating in short, daily, individual, small group, whole group and transitional activities...
Lesson Plan
Curated OER

2 X 2 Linear Systems

For Teachers 7th - 9th
Students solve 2 X 2 systems using graphing and algebraic methods.
Lesson Plan
Curated OER

Poppy Meets Pythagoras

For Teachers 8th
Eighth graders find connections between numbers in a table; use Pythagoras' theorem in a general algebraic form; and measure accurately from a scale drawing to find a method that might enable the helicopter to land inside a rectangular...
Lesson Plan
Curated OER

Using inverse Operations to Solve Equations

For Teachers 5th
Fifth graders solve equations. In this algebraic equations lesson plan, 5th graders use the inverse operation to solve an equation. The teacher reminds students to perform the operation on both sides of the equation. This lesson plan...
Lesson Plan
Curated OER

Taxi Fare

For Teachers 2nd - 5th
Students discuss what they know about taxis and how they charge. They read the problem and work in pairs focusing their thinking on the repeating pattern of twos. They then share their solutions and conclude with some class practice...
Lesson Plan
Curated OER

The Escape

For Teachers 4th - 6th
Young scholars find strategies for investigating number problems. They find a common multiple of a group numbers. The teacher introduces the problem and students read and think about it. In groups, young scholars discuss the problem...
Worksheet
Curated OER

Rational Expressions

For Students 11th
In this Algebra II activity, 11th graders simplify rational algebraic expressions by factoring and cancelling the common factors.  The two page activity contains instruction, worked examples, and three practice problems. ...
Lesson Plan
Curated OER

Graphing from Slope-Intercept Form: Practice A

For Teachers 9th
Ninth graders investigate the slope-intercept form of a line.  In this Algebra I instructional activity, 9th graders graph linear equations by using the slope and y-intercept. 

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