Gecko Mathematics
Gecko Mathematics: Multiplying Unit Fractions
Make learning visible! Have your mathematicians follow along as you use paper strips to demonstrate the concept of multiplying unit fractions. Then, offer a different way of solving the problem using a number line. Finally, introduce the...
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Describing the Center of a Distribution Using the Mean
Everyone does their fair share. The sixth segment in a 22-part unit presents the mean as a fair share. Groups build a conceptual understanding of the mean of a data set, rather than simply learn an algorithm. Learners use the...
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Adjusting the Quotient
Students solve division problems. In this division instructional activity, students review estimating and how to figure out if their estimate is too large or too small. Students solve division problems and use their estimating skills to...
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Adjusting the Quotient
Fourth graders use number facts to estimate quotients. In this division lesson, 4th graders examine long division problems to determine which multiple of ten will help them determine a number that is close to a quotient. They adjust the...
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Finding Fractional Parts Using an Area Model
Students explore math functions by completing a problem solving worksheet in class. In this division lesson, students utilize visual aides such as marshmallows and candy to visualize the act of division. Students complete a division...
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Multiplying and Dividing Fractions with Post It Notes
Seventh graders experiment with measurement as it relates to the algorithm for dividing fractions. In this fractions lesson plan, 7th graders work in groups to establish how many post-it notes it takes to fill an 8 X 11 piece of paper....
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Partial Products
Young scholars use the partial products algorithm to complete multiplication problems. For this partial products lesson plan, students are introduced to the algorithm and connect the relationship to multiplication and division problems.
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Discovering Math: Computation
Middle schoolers add, subtract, multiply, and divide rational numbers. They find the square and the cube of numbers. They create a game incorporating computation on rational numbers. Everyone works together to write and evaluate...
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Small Angle Calculations
Students work with circles, angles and estimating angles in the night sky. In this circles and angles lesson, students practice measuring a degree using the circumference of a circle and apply the degree to determine a way to use their...
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Turn Up the Volume
Measuring volume can be a mystery for 5th graders, but this hands-on activity gives the gift of discovery. The volume of simple rectangular solids and irregular shapes are calculated through various methods including displacing liquid in...
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Arithmetrivia
In this arithmetrivia activity, students read and solve word problems. They translate from word problems to written equations and then solve them. This one-page activity contains 12 problems. Answers are provided.
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Multiplying 2-Digit Numbers
In this multiplying 2-digit numbers worksheet, students solve and complete 4 different problems. First, they multiply by the right-bottom digit and then the left-bottom digit. Finally, they add all numbers together and write the answer.
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Euclidean Algorithm
Young scholars are introduced to the concept of a Greatest Common Divisor. They review the number systems. Students are told how the entire field of Number Theory primarily uses the integers. They are told the Fundamental Theorem of...
Computer Science Unplugged
Tourist Town—Dominating Sets
As an introduction to using a network to determine the fewest number of nodes that meet a given condition, small groups work together to determine the fewest number of ice cream vans, and their locations, to be able to serve the people...
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Calculator Spelling
Sixth graders practice creating and solving number sentences on a calculator. They interact with number facts, their properties, algorithms and estimation. Each student recognizes inverse relationships of addition, subtraction,...
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Rational Number Project
Infuse your unit on fractions, decimals, and operations with a thorough module about rational numbers. With a teaching guide, learner examples, templates for instruction, and lesson rationale, the module is a solid way to emphasize the...
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Cooking with Math
Fourth graders practice multiplication and division with cooking recipes. In this math lesson, 4th graders look at a recipe and change it so that it works for twice as many people or half as many people.
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Recursion, Roots and Newton's Methods
In this recursion worksheet, students determine the successive approximations of square roots by using the Babylonian Algorithm. They discuss how to derive Newton's Method from the microscopic approximation. This four-page worksheet...
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Multi-Digit Multiplication
Fourth graders practice mastering the ability to multiply multi-digit numbers utilizing rectangular arrays and a variety of mental math strategies. They model and illustrate meanings of multiplication and division of whole numbers and...
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Adding and Subtracting Decimals
Fourth graders develop the concept of adding and subtracting decimals. In this decimal lesson plan, they participate in a teacher directed demonstration of how to add and subtract decimals. They work in teams as each person performs one...
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Playing with Remainders
Fifth graders explore how people handle remainders in real life. In this remainders math lesson, 5th graders participate in skits to show what to do with remainders. Students complete worksheets with word problems.
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Computers Can Only Add
Students explore using mathematics to solve problems in base two. After a teacher demonstration of using base two to write numbers. students model similar problems to explore the concept of number systems in different bases. To increase...
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Miles Of Smiles
Learners investigate basic mathematical properties to solve multiplication and division problems. They solve word problems that are part of the lesson. Students are required to give written or oral justification for how they solve each...
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Cutting the Wood
Pupils demonstrate and describe the effect of multiplying or dividing by a fraction less than or greater than one. They create and explain a variety of equivalent ratios that represent a given situation. Students draw a picture of the...