What are constraints and how can they be represented mathematically? This instructional slideshow provides an explanation and an example of how to translate constraints into algebraic inequalities.

Students make a box and whiskers plot using the TI-73 graphing calculator. Each student would have their own calculator but they would work in small groups of two or three to help each other enter the data and make the plots.

Middle schoolers utilize mathematical concepts such as: measurement, ratio and proportion and geometric probability to analyze the components of the U.S. Flag. They collect, organize and interpret data by constructing charts, tables and...

Students design a rectangular box without a lid that has the largest possible volume using the supplied sheet of centimeter graph paper. They work in groups to construct different size boxes to determine the largest possible volume and...

How can you see a number in nature? Here, learners discover both Fibonacci numbers and the golden ratio by exploring a number of different resources.  Note: Some of the resources are older and may be missing some of the links, but...

Your geometers are used to finding the perimeter of a square or rectangle, so give them something different this time! With this lesson, small groups will receive a picture of a shoreline and calculate the perimeter. The website listed...

Finding out how to calculate tax and tip is a valuable skill that all young adults should be able to do without a calculator. Learners are given a bill and asked to calculate the tax, tip, and total amount. Calculations can be exact or...

Students establish classifications of shapes by various properties (angles, sides, etc.). They introduce the important properties of common shapes. Students develop an awareness of the wide variety of ways the 2-D shapes can be alike.

Students explore perimeter and area of regular and irregular polygons. They experiment with color squares and create different arrangements using the same number squares. Then they compare the area and perimeter measurements of each.

Learners engage in a activity that has them practice solving equations using multiplication and division. They practice solving problems using the properties needed and then students practice changing word problems into an equation.

Explore the concept of writing variable expressions by examining the similarities between expressions with numbers and expressions with variables. Emerging mathematicians determine rules for sequences and patterns before writing a rule...

Middle schoolers study the triangle inequality. They will identify, compare, and analyze attributes of two and three-dimensional shapes. Then they develop vocabulary to describe the attributes. They also use manipulatives to analyze the...

Students explore the concept of probability. In this probability lesson, students develop an understanding of probability by pulling marbles out of a bag and recording the data. Students use the recording sheet to discuss the results of...

How can you solve systems of linear equations? This slideshow introduces learners to the substitution method, the elimination method using addition and subtraction, and the elimination method using multiplication. Guided practice...

Students use a ruler to determine length and then fit the unit to a scale in miles. This unit will also give a geological awareness of altitude and the difference it makes in travel time. The travel time with Mapquest will obviously be...

Students observe how math is important in navigation and engineering. They study how surveyors use math and science to calcute, count, measure, label, and indicate distances on a map. They estimate specific distances.

Students explain what El Nino is, where it is located and how it is created. They describe the weather changes caused by El Nino. They draw the patterns of El Nino on a world map. They predict economic effects El Nino has on the areas it...

Students research the Cartesian Coordinate System and its many uses in the world of mathematics and algebra.

In this math worksheet, students convert the fractions into decimals for the 18 problems. They are also challenged to convert some mixed numbers.

Seventh graders investigate the concept of looking at the data put in a variety of ways that could include graphs or data sets. They analyze data critically in order to formulate some sound conclusions based on real data. Students graph...

Fourth graders investigate the patterns associated with both triangular and square numbers. They use counters as manipulatives to depict the numbers as needed but focus on problem solving using mental math techniques.

Students engage in a study of trash and how it is disposed of in the environment. They also research the impact of recycling and its effects upon the disposal amounts. Students calculate the advantages of recycling using real world...

Lead young scientists on an investigation of fishery practices with the final installment of this four-part unit. Using a PowerPoint presentation and hands-on simulation, this lesson engages children in learning how...