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Lab Resource
Pingry School

An Introduction to Qualitative Analysis

For Students 9th - 12th Standards
Compounds take on different properties than their elemental components. How can scientists determine those elements? A lab-based activity has learners explore several double replacement reactions to analyze compounds qualitatively. They...
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Worksheet
Curated OER

Extracting DNA from Your Cells

For Students 9th - Higher Ed
Three steps are needed to extract DNA from learners' inner cheek cells. The procedure and reasons for each step are explained. As enzymes work on the cells, a series of questions are answered regarding the structure of the DNA molecule....
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Lesson Plan
National Research Center for Career and Technical Education

Depreciation (Double Declining)

For Teachers 9th - 12th
Have you ever been told that your new car begins to lose its value as soon as you drive it off the lot? Aspiring accountants take on the concepts of depreciation and book value through an easy-to-deliver career and technology lesson...
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Lesson Plan
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Meadows Center for Preventing Educational Risk, University of Texas at Austin

Lesson 16 - Adding Vowel Suffixes to CVC and Silent E Base Words

For Students 3rd - 6th Standards
There's a big difference between hoping and hopping. A lesson on adding vowel suffixes discusses when to double a consonant before adding a suffix such as -ed or -ing. Readers practice breaking down words into syllables and creating new...
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Lesson Plan
EngageNY

A Rainforest Folktale: Determining the Message of “The Wings of the Butterfly,” a Tukuna People Tale

For Teachers 5th Standards
Did you the message? Scholars listen to a read aloud of The Wings of the Butterfly to summarize and determine the message of the text. They discuss the folktale and vocabulary in groups, then use a double bubble map to compare the story...
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Worksheet
T. Smith Publishing

Vowel and Consonant Mail

For Students 2nd - 3rd Standards
Clarify the difference between a consonant and a vowel with an activity inspired by mail. Learners help out a confused mail carrier by categorizing and alphabetizing words by writing them on the corresponding mailboxes. One mailbox is...
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Worksheet
Curated OER

Alkanes and Alkenes

For Students Higher Ed
In this alkanes activity, students use a data table to plot a graph of boiling point against number of carbon atoms. Students define cracking and double bond. This activity has 5 short answer questions.
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Worksheet
Curated OER

Addition-Doubles

For Students 1st - 2nd
In this addition worksheet, students complete a set of 25 problems, adding numbers to themselves. All problems are 1-digit, a reference website is included.
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Worksheet
Curated OER

Double Trouble Addition

For Students 1st - 2nd
In this adding doubles worksheet, students enhance their addition skills by adding the doubles. Students complete 12 sets of doubles addition problems.
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Lesson Plan
Curated OER

Introduce Double-Letter Words

For Teachers 1st
First graders explore the concept of double letter words. In this word recognition lesson, 1st graders discuss the concept and play a game that requires them to form double letter words.
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Lesson Plan
Curated OER

Double-Crusted Pie Lab

For Teachers 8th - 11th
Pupils individually practice the techniques and skills learned in preparing a double crusted pie using fresh, canned or frozen fruit that needs to be thickened with tapioca, flour or cornstarch.
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Worksheet
Curated OER

Double Sixes

For Students 8th - 10th
In this algebra learning exercise, students are given the challenge of determining how many times they would have to throw the dice to 'up' their chances of throwing double sixes. The problem is solved and fully worked however, it would...
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Lesson Plan
Curated OER

Double, Double: Looking at the Effect of Change on Perimeter, Area and Volume

For Teachers 9th - Higher Ed
Students explore perimeter, volume, and area. For this math lesson, students explore how changes in dimensions of geometric shapes affect the perimeter, area and volume of the various shapes. Students investigate the results when the...
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Lesson Plan
Curated OER

Adding Doubles Plus One (B)

For Teachers 2nd - 3rd
In this addition worksheet, students find the sums of single digit doubles plus one. Students solve 21 problems associated with adding doubles.
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Worksheet
Curated OER

Thanksgiving Doubles

For Students 1st - 3rd
For this Thanksgiving themed doubles worksheet, students calculate the answers to four Thanksgiving double equations.
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Worksheet
Curated OER

Christmas Doubles Addition

For Students K - 1st
In this Christmas addition worksheet, students use models to identify the sum. Pictures of numbers include reindeer, candy canes, stockings, and angels. All addition problems are doubles ranging from doubling one to doubling five. An...
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Worksheet
Curated OER

Double Bar Graphs

For Students 4th - 6th
In this double bar graphs practice worksheet, students sharpen their problem solving skills as they solve 6 story problems.
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Worksheet
Curated OER

Double Deckers- Addition and Subtraction Practice

For Students 1st - 2nd
In this addition and subtraction activity, students complete number sentences using the given digits. They write an addition problem on top of a subtraction problem by filling in the blanks that are shown in pictures of double decker buses.
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Worksheet
Fuel the Brain

Doubles

For Students 3rd
Word problems can confuse your young learner, especially when the problem asks for "double that number." Using simple addition, your learner will learn how to find the solution to a problem that requires them to take the information from...
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Lesson Plan
Curated OER

Double Exposed Photographs

For Teachers 3rd - 5th
Students create double-exposed photographs, poetry, and multimedia presentations. In this artwork lesson plan, students explore cameras, poems, and other art forms to understand line, light, and other attributes that contribute to artwork.
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Organizer
Curated OER

Double Bar Graph Grid

For Students 4th - 5th
In this math worksheet, students use this blank double bar graph grid as a tool for any graphing problem. There is a space for the title, labels for each axis and a spot for the key.
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Worksheet
Curated OER

Addition, Single Digit Doubles - #1

For Students K - 2nd
In this single digit addition practice worksheet, students solve 30 problems that require them to double single digit numbers.
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Worksheet
Curated OER

Math – Addition :3 Addends of 1-Digit with Doubles

For Students 1st - 2nd
In this addition practice worksheet, students solve 12 problems that require them to add 1-digit numbers with 3 addends. Two addends in each of the problems are doubles.
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Worksheet
Curated OER

Double Arrow Roads

For Students 3rd - 4th
In this mixed math operations worksheet, learners complete two double arrow roads math puzzles. In each colored box, students put a different math operation. Learners pick a starting number and go through the puzzle, following the arrows...

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