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Curated OER
Ordering to 20
Given a series of number lines, learners fill in missing number from 1-20 using the number pool provided. They add each number untill the number line is complete. This is a great activity to foster counting skills, number ordering, and...
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Add Like an Egyptian
Add and subtract 20 interesting problems, all written with ancient Egyptian numbers. A great challenge to increase interest in math and problem-solving skills, kids will work through each problem; answering by drawing the correct...
Curated OER
Positive and Negative Numbers
Preview a presentation that goes over the definitions of postive numbers, negative numbers, and integers with your mathematicians. Many examples of how these numbers are used in daily life are presented, as well as examples of how these...
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Fractions XI Adding Mixed Numbers with Unlike Denominators
This PowerPoint demonstrates how to add mixed numbers with unlike denominators. The slides display examples of problems, along with steps that students can easily follow.
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Number Sequences
Number sequences make for great challenges that stimulate pattern recognition, algebraic reasoning, and number sense. This slide-show includes eleven number sequences for learners to work through, an explanation of what number sequences...
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Calculator Tricks: The Golden Prediction
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...
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Problem Solving
Give kids a few strategies to help them become amazing problem solvers. This presentation is intended to be used over a two-day period and presents several techniques or ways to solve word problems or multiplication problems by...
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Multiplication Grids: Double-Digit
Kids learn how to use the grid method to solve double by single-digit multiplication problems. They take each double-digit number into its tens and units, place it on the grid, add the multiplier, then solve the problem. There are two...
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Secret Country Code Breaker
Super cool and totally fun math awaits your class. They are the code breakers, and their job is to identify and locate the secret agent by breaking two different codes. They use all their skills to solve a series of double-digit addition...
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Size of Atoms - Trends
This compendious collection of slides leaves no questions when it comes to the concept of atomic size. Thorough and easy-to-read graphs, tables, and graphics explain atomic radii, the shielding effect, the octet rule, isoelectric...
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Fraction X - Adding Unlike Denominators
Adding fractions with unlike denominators is a difficult process to master. This fine presentation does a terrific job of leading young math whizzes through the steps necessary to perform this calculation. The slides have clear graphics,...
Biology Junction
Population Genetics
Genetic variation shows the health of a population, yet cheetahs show very little variation over that last 10,000 years. Scholars learn the importance of genetic variation in populations after viewing an informative presentation. It...
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Adding in Our Heads
A good presentation on adding two-digit numbers. Learners are shown how to partition the numbers before trying to add them in their heads. A frog is the featured teacher of the PowerPoint, and he leads viewers through many problems and...
Curated OER
Fraction X--Adding Unlike Denominators
In this math PowerPoint, the process of adding fractions with unlike denominators is broken down into a logical, easy-to-follow sequence of steps. Definitions and examples of multiples, least common multiple, and least common denominator...
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Understanding Place Value: Base Ten Models
As an overview of place value involving numbers in the hundreds, this resource would be incredibly beneficial. There are only a few examples, but the graphics make this concept come alive. In a lower grade classroom, this presentation...
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Converting Fractions, Decimals, and Percents
Prime or review the steps needed to convert fractions, decimals, and percents. Each slide contains very basic rules of conversion and a few examples of each. The content of this resource is good, but the layout of the text could be better.
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Integumentary System: A System, An Organ, the Biggest!
It is only six short slides, but an acceptable outline of the integumentary system. General facts about the system, layers, sublayers, and functions are listed as bullet-points. What would make this presentation more engaging for your...