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Math E-Activities 4-5

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 Sub-Divisions
$1.00
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Students will learn to divide by repeated subtraction or clustered subtraction. Source: Marvelous Multiplication and Dazzling Division more
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 Subtraction Palindromes
$2.00
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Students will use a reversal and subtracting process for making any two-digit number a palindrome and look for patterns in their solutions. Source: Problem Solving: Just for the Fun of It! Book Two more
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 Surf 'n' Sand Toss
$2.00
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Students will discover the ratio of water to land on the Earths surface by tossing an inflatable glove and recording whether the right index finger touches land or water. more
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 Symmetry Experiences
$2.00
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Informational pages for students on symmetry including bilateral (plane) symmetry and rotational symmetry. Source: Paper Square Geometry: The Mathematics of Origami more
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 Talking in Circles
$2.00
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Students will recognize fractions in real-world problems or situations, represent and interpret fractions in a circle or pie graph, and recognize the relative size of fractions. Source: Fabulous Fractions more
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 Tallying Toothpick Triangles
$2.00
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Students will determine the number of toothpicks it takes to build one through five equilateral triangles, and use this information to generalize a rule for how many toothpicks it takes to make any number of triangles. Source: Solve It! 3rd: Pr... more
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 Tangrammy Squares
$2.00
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Students will use tangram pieces as an area model for the study of fractions, and explore the fractional relationships among the tangram pieces. Source: Fabulous Fractions more
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 That's Sum Challenge!
$2.00
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Students will find which sums from one to 25 can be obtained by adding two, three, four, five and six consecutive numbers and discover and discuss the patterns that exist in the solutions. Source: Problem Solving: Just for the Fun of It! more
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 That's Sum Pattern!
$2.00
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Students will find all of the two-number combinations that total 15, and organize their answers to be sure they have found them all. Source: Solve It! 4th: Problem-Solving Strategies more
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 The Fabulous Four-sum
$2.00
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Students will determine different possible addition problems using a specified set of numbers, look for patterns within their solutions, and look for patterns between solutions that use different sets of numbers. Source: Solve It! 4th: Problem-... more
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 The Fascinating Triangle
$2.00
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Students will arrange the numbers from one through six on the sides of a triangle according to different criteria, discover patterns that exist in the solutions, and compare these patterns with the patterns discovered in the The Fascinating Trian... more
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 The Hundred Number Challenge
$2.00
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Students will find the sum of the numbers from one to 100, and be challenged to discover multiple methods for arriving at the same answer. Source: Problem Solving: Just for the Fun of It! more
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 The King's Containers
$3.00
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Students will find the masses of cups filled with different materials and order the cups from heaviest to lightest. The PDF contained in this download is enhanced with videos that can be viewed on a desktop computer using Adobe Acrobat Reader 9... more
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 Thinking Our Way Out of the Bag
$2.00
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Students will devise a strategy for calculating a close approximation of the number of objects in a container without counting each one, and communicate mathematical ideas by organizing and creating a visual display of their solutions and problem... more
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 Three-Digit Divisibility Dilemma
$2.00
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Students will find as many numbers as they can that are divisible by 11 and have three digits, each of which is different. Source: Solve It! 5th: Problem-Solving Strategies more
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 Three-Way Stretch
$2.00
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Students will use geoboards to become familiar with the attributes of triangles and ways in which they are classifiedby angles (acute, right, obtuse) and by sides (equilateral, isosceles, scalene). A geoboard challenge is presented for each type o... more
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