Worksheet
Curated OER

Solving Equations

For Students 9th
In this Algebra I worksheet, 9th graders solve basic equations, writng a proof of the solution and justifying each step. The one page worksheet contains four questions. Answers are not included.
Lesson Plan
Curated OER

Writing a Number Sentence

For Teachers 3rd
Third graders analyze word problems. In this number sentence lesson, 3rd graders evaluate word problems. Students create number sentences from word problems.
Worksheet
Curated OER

The Premises of Geometry

For Students 9th - 10th
In this geometry instructional activity, students solve for missing midpoints, segments and angles using algebraic equations. They use geometric properties to solve these equations. There are 32 questions on 7 different worksheets.
Lesson Plan
Curated OER

Chart Your Course

For Teachers 6th - 8th
Young scholars explore change represented in graphs comparing distance and time. They exchange and share their graphs. Students interpret and create distance versus time line-graphs, and write stories based on these graphs. They...
Lesson Plan
Curated OER

The Magic Squares

For Teachers 5th
Fifth graders devise and use problem solving strategies to solve a magic square arrangement. In small groups they explore various strategies including non-algebraic and algebraic techniques, write an explanation of their solution, and...
Worksheet
Curated OER

Number Theory

For Students 10th - 11th
In this algebra activity, students develop patterns and formulas to solve sequences. They apply the Number Theory to each problem. There is 1 question.
Lesson Plan
Curated OER

Iterating Linear Functions

For Teachers 7th - 9th
Learners use a spreadsheet to investigate data. In this algebra lesson, students collect and graph data on a coordinate plane. They explain properties of a linear equation both algebraically and orally.
Lesson Plan
Curated OER

Will Exams Be Cancelled?

For Teachers 8th - 11th Standards
If the flu outbreak continues, exams will have to be canceled. Investigate the properties of exponential and logarithmic functions. In this algebra activity, students use the TI to examine and differentiate between exponential growth and...
Lesson Plan
Curated OER

Slopey Math

For Teachers 8th - 10th
Students identify the slope of a line and use it to solve real life problems. In this algebra lesson, students write linear equations in slope intercept form and make a correlation to its relation to the real world. They use the slope an...
Lesson Plan
EngageNY

Prove the Pythagorean Theorem Using Similarity

For Students 9th - 10th Standards
Amaze your classes with the ability to find side lengths of triangles immediately — they'll all want to know your trick! Learners use the Pythagorean Theorem and special right triangle relationships to find missing side lengths.
Worksheet
Curated OER

Complex Analysis: Theorems Following Cauchy's Integral Formulas

For Students Higher Ed
For this integral formula, students explore how theorems are derived. They write proofs supporting Cauchy's Inequality, Liouville's Theorem, the Fundamental Theorem of Algebra, Gauss' Mean Value Theorem and Cauchy's Residue Theorem. ...
Lesson Plan
Curated OER

Properties of Logarithmic Functions

For Teachers 8th - 10th
Students solve exponential functions. In this algebra lesson, students identify the properties of logarithmic and exponential functions. They graph their functions and solve using change of base formula.
Lesson Plan
West Contra Costa Unified School District

Divisibility Rules Justified

For Teachers 6th - 8th
How do you know if a number is divisible? Instructors first prove the divisibility rules for three and four and then class members use this modeling to prove given divisibility rules for eight and nine either individually or in...
Lesson Plan
Curated OER

Play It

For Teachers 6th - 9th
There are a number of activities here that look at representing data in different ways. One activity, has young data analysts conduct a class survey regarding a new radio station, summarize a data set, and use central tendencies to...
Lesson Plan
Curated OER

Arithmetic Chains

For Teachers 8th - 10th
Students complete a chain of numbers given the outcome. In this geometry lesson, student use deductive and inductive reasoning to solve problems. They create a formula and ways to predict numbers in the chain without starting over.
Lesson Plan
Virginia Department of Education

Inductive and Deductive Reasoning

For Teachers 9th - 11th
Introduce pupils to the two types of reasoning, inductive and deductive. Classmates work in pairs or small groups to learn the difference between the two and apply these reasonings to develop valid conclusions. 
Lesson Plan
Curated OER

Roman Bernardo: Solving Linear Equations

For Teachers 7th - 9th Standards
Mathematicians use an inquiry method to solve linear equations. In this linear equations instructional activity, students practice solving equations using addition, subtraction, multiplication and division. They solve multi-step...
Lesson Plan
Curated OER

Inductive and Deductive Reasoning

For Teachers 9th - 12th
Students use logical arguments and inductive reasoning to make or disprove conjectures. After observing a teacher led demonstration, students discover that the deductive process narrows facts to a few possible conclusions. In groups,...
Lesson Plan
Curated OER

Interactivate - Lines, Rays, Line Segments, and Planes

For Teachers 6th - 8th
Learners explore lines, rays, line segments, and planes. In this math instructional activity, students discuss the math concepts and direct their instructor in graphing functions. Learners collaborate in graphing additional functions.
Lesson Plan
Curated OER

Tessellations: Geometry and Symmetry

For Teachers 8th - 10th
Students explore the concept of tessellations. In this tessellations lesson, students use an applet to construct tessellations. Students use regular polygons to construct tessellations. Students find patterns and symmetry in their...
Lesson Plan
Shodor Education Foundation

Surface Area of Rectangular Prism

For Teachers 6th - 8th Standards
With this interactive lesson, learners compute the surface area of rectangular prisms. They visit an online investigation applet and record data on the provided handout. Pair this lesson with the volume lesson by the same publisher as an...
Lesson Plan
Shodor Education Foundation

Volume of Prisms

For Teachers 7th - 10th Standards
Explore the concept of volume of prisms using an applet to perform the calculations. The link to the interactive applet is embedded into the lesson plan as well as a link to associated data sheets. Get your math class to the computer lab...
Lesson Plan
Curated OER

Volume of Rectangular Prisms

For Teachers 6th - 8th
Introduce the procedure needed to find the volume of a rectangular prism. Learners rank various prisms such as cereal boxes and tissue boxes from smallest to largest volume. They use an applet to find the volume and surface area of each...
Lesson Plan
Curated OER

Picking Pythagoras

For Teachers 6th - 9th
Students discover that side measurement is used in determining angle classification of a triangle. By squaring sides, they predict whether triangles be right, obtuse, or acute. They prove the Pythagorean Theorem and use it to solve...