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Doubling

For Students 1st - 3rd
In this doubling worksheet, students double given numbers, writing answers in boxes beside each. A website reference for additional resources is given.
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Subtraction: Take Whole Tens

For Students 2nd - 3rd
In this subtraction worksheet, students use a number line to help subtract whole tens, 10 problems total. An answer key is included; a website reference for additional activities is given.
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Adding-Written Questions

For Students 2nd - 3rd
In this addition worksheet, students answer a total of 10 questions, 4 numeric problems and 6 written in question form. A reference website is given.
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A Metre

For Students 2nd - 3rd
In this measurement worksheet, students use a tape measure or a ruler to measure items in the classroom to find those that are greater than 100 cm and less than 100 cm. 
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Comparing and Measuring Lines

For Students 2nd - 3rd
In this measuring and comparing lines worksheet, students measure lines in centimeters and write which one is longest. A website reference for additional resources is given.
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Comparing and Measuring Lines

For Students 3rd
In this measurement worksheet, 3rd graders answer 4 questions in which they measure lines in centimeters to find which one is the longest. 
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Making lists

For Students 2nd - 3rd
In this odd and even number worksheet, students list all the even numbers up to 30 in one box and all the odd numbers to 30 in another. 
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Missing Number Activity

For Students 2nd - 3rd
In this missing numbers worksheet, students fill in missing numbers in sequences given in 6 rows. An answer key and reference website are included.
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Count in Hundreds: Missing Numbers

For Students 2nd - 3rd
In this counting/missing numbers worksheet, learners fill in missing numbers in rows, counting in hundreds. A reference website for additional resources is given.
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Number Tracks-Missing Number Activity

For Students 2nd - 3rd
In this missing numbers worksheet, students fill in missing numbers in a number track, 5 total. An answer key and website reference are included.
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Counting in Tens

For Students 1st - 2nd
In this counting in tens worksheet, students fill in blanks in rows of numbers, counting in tens. A reference website for additional resources is given.
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Counting Back in Tens

For Students 2nd - 3rd
In this counting back in tens learning exercise, students count down in tens from one number given to another. A website reference for additional activities is given.
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Counting Back in Tens

For Students 2nd - 4th
In this counting by 10's worksheet, students count backwards by 10's, starting from different 2 digit numbers. Students complete 4 problems.
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Complete Number Sentences

For Students 2nd - 3rd
In this number sentences activity, students fill in missing numbers to make sums correct. A website reference for additional activities is given.
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Know by Heart Addition

For Students 2nd - 3rd
In this addition worksheet, student practice answering sets of "know by heart" problems as quickly as possible A reference website for additional resources is given.
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Know By Heart Addition Facts

For Students 1st - 3rd
In this addition facts learning exercise, students practice answering addition problems as quickly as possible using numbers 1-10. An answer key is given.
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Missing Number Sum Activity

For Students 1st - 3rd
In this missing number worksheet, students fill in missing addends to reach the sum of 19, 8 problems total, then answer additional related questions.
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Subtraction-Oral Questions

For Students 2nd - 3rd
In this subtraction worksheet, students answer a set of 16 oral questions about subtraction. An answer key is included; a website reference for additional activities is given.
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Subtraction

For Students 2nd - 3rd
In this subtraction worksheet, students use a given number square to help answer a set of 10 questions. An answer key and website reference are given.
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Subtraction Practice

For Students 2nd - 3rd
In this subtraction instructional activity, students use a grid to complete a set of 10 problems written in sentence form. A reference website for additional resources is given.
Lesson Plan
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Laboratory: Micro Rockets

For Teachers 9th - 12th
If you know how to employ the exothermic reaction between hydrogen gas and oxygen gas to make a miniature rocket, then this worksheet is a fabulous lab sheet for your chemistry charges. First, they observe a spark in pure oxygen and one...
Lesson Plan
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Butterflies

For Teachers 2nd - 3rd
In this science and reading comprehension worksheet, students read a 1 page detailed passage about butterflies. Students then answer 7 questions.
Lesson Plan
Deliberating in a Democracy

Cyberbullying—Lesson Plan

For Teachers 6th - 12th
Learners examine cyberbullying. In this lesson on democracy, young scholars discuss the different ways to deal with cyberbullying. They then take a position on the question of whether a democracy should allow schools to take action...
Lesson Plan
Deliberating in a Democracy

Free and Independent Press

For Teachers 8th - 12th
Students determine how free press principles can be compromised. For this global studies lesson plan, students read an article titled "Free and Independent Press." Students respond to discussion questions regarding the article.

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