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...

Students use information they know to decorate a room at a reasonable cost by comparing the cost of companies for a decorating job. In this cost lesson plan, students take into consideration the area and perimeter of the room.

Get second graders outside to estimate and measure how long 800 meters is on their school campus. They then measure the actual distance in yards to see how close their estimate was. An interesting teaching idea!

Using the guess and check method, students solve six word problems involving multiplication and division. Each problem presents a different scenario for students to solve. The worksheet could be used for individual or small group...

What a great big skillet you have. The resource introduces the class to the world's largest stainless steel skillet. The class creates a model of the skillet and a typical 12-inch skillet and compares the relative sizes of their areas....

Little learners look at images inspired by classic fairy tales such as, gingerbread men, ducks, and shoes. They estimate how many they think are there then count to find out how close their estimate was.

"Take a walk" with this instructional activity and estimate how many birds, ants, turtles, flowers and children getting on a bus that you see. Based on the size of a single set of 10 objects, learners estimate how many are in the whole...

Multiplication on the fly becomes easy with the magic of estimating! Scholars round numbers up to four digits to complete multiplication problems without a calculator. They write in the new factors and the approximate product for the...

Sometimes close enough is appropriate. A curriculum document for AP® Calculus examines the importance of providing approximation questions throughout the course. It looks at approximating derivative values, approximating definite...

Sometimes dealing with decimals is so much easier than dealing with fractions. The ninth instructional activity in a 21-part module has the class consider situations when it might be easier to add or subtract fractions by first...

Class members come up with a hypothesis on the number of decimal digits in the product of two decimals. Learners work in groups to complete several decimal multiplication problems. The results help groups develop a conjecture on the...

Seventh graders explore the values that are used in order to describe data that is collected or given. They compare data using the statistical analysis provided by finding the mean, median, and range.

Students calculate the length of the classroom using non-standard units of measurement and estimation. Using a cracker box, they discuss measuring various objects in the room as a class, and independently estimate and measure the length...

Third graders practice using money. In this estimation lesson plan, 3rd graders show their ability to figure out the cost of lunch. Students then set up a "store" and students choose the products and estmate the cost. Students visit...

Young scholars explore measurement and estimation with non-standard units. In this measurement lesson, students discuss items that could be used to measure; they use tooth picks to measure specific items around the classroom, both...

Help your class make sense of quantities and their relationships. Given is the product of two numbers. It is up to your number crunchers to think about the quantitative relationship when the product is one-tenth or ten times the product...

Financial literacy skills and exponential models are connected by the compound interest formula in this task centered on inflation calculations. Collaborative learners get experience collecting data from the given websites and exploring...

I can find the error in an array of cards? After watching a demonstration class members search for the error is the provided cards. The resource provides a real-life example of using ISBN numbers in error detection and using check...

Rules are meant to be broken ... but not integer multiplication and division rules. Learners use chips to model integer multiplication and division. The results of the activity help them develop integer rules for these operations.

A well-rounded unit on positive and negative integers is a great addition to your middle school math class. Learners work through five activities, each focused on a different skill, before playing a Game of Life to practice the...

How much land does a parcel hold? How much fertilizer does it take for a field of corn? Pupils answer these questions and more as they apply ratio reasoning and unit analysis. 

A rich and well-designed lesson on estimation is here for you. The lesson utilizes a video; ITV Series: The Eddie Files 'Estimation: Going to the Dogs,' along with many websites. Several fantastic learning activities are...

Being able to estimate, understanding place value and fractions, and solving word problems are all important skills in math. This PowerPoint is a Jeopardy-style game where young mathematicians utilize all of these skills in order to win...