Tenth graders investigate the history of Pi and how it relates to circles. In this geometry lesson, 10th graders measure the circumference of a circle and the diameter of a circle. They relate these measurements to the number of Pi or 3.14

Whether you wrap it or fill it, you're using geometric concepts. Classmates use an interactive approach to learn how to find volume and surface area of cylinders and prisms in the second lesson in a five-part series. The online lesson...

Students practice solving problems with non-right triangles. In this precalculus lesson, students define and identify the properties of the Law of Cosine. They solve problems and investigate the history behind Cosine.

Explore the concept of money and research its origin. There are many concepts related to business math, thusly, there are many formulas used to make calculations around money. Exchange rates of money in different countries, interest,...

Learn about credit ratings and how it plays a role in the function of small businesses. Learners use their knowledge of good and bad credit to role play and determine good credit vs. bad credit in the area of small businesses.

Long considered the symbol of safe harbor and steadfast waiting, the lighthouse gets a mathematical treatment. The straightforward question of distance to the horizon is carefully presented, followed by a look into the...

The accuracy required by the design and measurement of an Olympic running track will surprise track stars and couch potatoes alike. Given a short introduction, the class then scaffolds into a detailed analysis of the exact nature of the...

Students calculate the radius of the earth. They use the method and data suggested by Eratosthenes. They investigate the interrelationships among mass, distance, force, and time through experimental processes.

The ancient Mayans had a complex calendar and number system with a rich history. In fact, the date 12/21/2012 was the center of much controversy as to whether or not it was the end of time. It wasn't the end of time, but...

Practice basic operations for young mathematicians in fun ways! Using two decks of cards (Ace through 10 plus the joker), learners play "memory" by matching numbers that can be added to make 10 and writing number sentences. In another...

Isn't paper pushing supposed to be boring? Learners attempt a paper-pushing puzzle to develop ideas about angles inscribed on a diameter of a circle. Learners then formalize Thales' theorem and use geometric properties to develop a proof...

Data encryption is an important security measure for sensitive data stored on computers. Pupils learn how to utilize matrices for creating code. They also get a great review of matrix multiplication, inverse matrices, and the identity...

Who knew quilting would be so mathematical? Introduce linear equations and graphing while working with the lines of pre-designed quilts. Use the parts of the design to calculate the slope of the linear segments. The project...

Young scholars compare contemporary cultural differences with historical differences based on population percentage. In this cross-curriculum Gold Rush/math lesson plan, students analyze aspects of California's Gold Rush population and...

Take cover because a wild presentation on hurricanes is about to make landfall in your classroom! An outstanding PowerPoint presentation is the centerpiece of this instructional activity. Not only does it provide information and...

Ninth graders, in groups, search for and locate resources on a chosen famous mathematician. Enough information needs to be gathered to examine the mathematician's life and his/her contributions to the field of mathematics.

Fifth graders receive a brief history of Pascal's triangle. As a class the students construct the first few rows of the triangle. The students are then split into groups where they finish a worksheet identifying the total value of each...

Students discover how units of measurement help people to categorize objects. In this measurement lesson, students discuss various units of measurement, use creativity to invent new possible units of measure, and learn the history of...

Learners examine the definition of inflation and its impact through history. They read and discuss online text, discuss examples of inflation, calculate the prices of various items for different years using an inflation rate of 3%, and...

Excite the class with a mathematical trick, a calculator, and a good number sense. They use the directions provided on each slide to make a list of numbers, use their calculator to divide, and find the golden mean. A little history on...

Students use statistics to solve problems based on the spread of disease.  In this disease instructional activity students study the role that viruses and bacteria play in the spread of diseases and explain pandemics. 

In this decimals, percent and scientific notation learning exercise, 9th graders solve various types of problems that range from shading an indicated part of a shape to calculating using scientific notation to express their answer. They...

Young mathematicians join the ancient order of the Pythagoreans by completing an assessment task that asks them to find the area of tilted squares on dot paper. They then look at patterns in the squares to develop the...