Lesson Plan
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Mathematics: One Hundred Plastic Ants

For Teachers 3rd
Third graders pick up plastic ants scattered on the floor. They take them back to their desks, count them, and add their totals to those of other students.
Lesson Plan
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Hooked On Problem Solving

For Teachers 4th
Fourth graders use properties of operations and problem-solving strategies to do mental calculations, and look for patterns in the solutions. They create an array, using each of the digits 1-9 exactly once to form addition problems...
Lesson Plan
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Study Buddies: Averages

For Teachers 2nd - 3rd
In this math worksheet, young scholars will work with a coach to find the average of three bowling scores. Students will follow a step-by-step process and notes are provided for the coach.
Worksheet
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Study Buddies: Working With Addition Properties

For Students 4th - 5th
In this math worksheet, students will work with a coach to learn about and practice three addition properties: associative, commutative, and identity. Students will follow a step-by-step process and notes are provided for the coach.
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Addition Lady Bugs

For Teachers 1st - 2nd
In this addition worksheet, young scholars add numbers from the one two, three and four families. For each of the nine lady bugs pictured, they place the appropriate number of dots on each bug to represent the indicated addends. After...
Lesson Plan
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Number Sense

For Teachers 1st
First graders practice rounding 4 digit numbers using place value concepts. In this estimating sums and differences lesson, 1st graders explore clustering, rounding, and front end estimation as methods for rounding decimals.
Worksheet
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Repeating Digits in Addition

For Students 9th - 12th
In this patterns worksheet, high schoolers solve 4 short answer problems. Students find the pattern of adding the digits one through nine and extend that pattern to natural numbers with the same digit in every place. 
Worksheet
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Spaceship Math Addition L

For Students 2nd - 4th
In this addition worksheet, students solve 40 problems where the addends are from 0 to 9. The bottom of the sheet contains spaces to record a goal, the number of problems completed and the number of correct problems. There are links to...
Worksheet
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Math Made Me Daft, Momma

For Teachers 9th - 12th
In this secondary instructional activity, students solve a cryptogram involving an addition problem in which they must determine the numeric value of the letters in the addends and the sum.  The one page instructional activity...
Lesson Plan
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All A-buzz About Math

For Teachers 2nd
Second graders participate in Math-Eze activities to comprehend word problems. In this word problem lesson, 2nd graders recognize why a hexagon is the best shape for a beehive. Students calculate how far bees must travel to find 2 lbs....
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Riddles

For Students 4th - 7th
In this riddles instructional activity, students problem solve five mathematical riddles involving whole numbers, factors and digits. Students share their answers with their classmates.
Lesson Plan
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Fact Families

For Teachers 1st
In this mathematics worksheet, 1st graders create a fact family that uses specific numbers given. Then they draw eight circles, add five more, and write the fact out in a problem.
Worksheet
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Decimal Numbers

For Students 2nd - 4th
In this adding decimals activity, learners add numbers with decimals after looking at examples and number lines. Students complete 6 problems.
Worksheet
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Decimals Vocabulary Matching

For Students 5th - 6th
In this decimal vocabulary worksheet, learners match a set of 27 words to their correct definitions. Answers are included on page 2; a reference web site is given for additional activities.
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Mean Averages

For Teachers 4th
Fourth graders examine a number of data sets while practicing finding the mean, median, and mode of the numbers.
Worksheet
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Express The Length Whole Word Problems

For Students 1st - 2nd
Children in grades 1-3 will work to solve eight word problems involving length and whole numbers. They add, subtract, and problem solve to match the questions on the left to the answers on the right. Note: These problems are very poorly...
Worksheet
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Math Vocabulary

For Students 6th
In this math vocabulary activity, 6th graders match twenty-three math vocabulary words from column A to the definitions in column B.
Worksheet
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Addition Properties and Subtraction Rules

For Students 3rd - 4th
In this addition and subtraction worksheet, students review the addition properties and the subtraction rules. Students then complete each number sentence and tell which property or rule was used.
Worksheet
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Sumerian Numbers

For Students 5th - 6th
In this Sumerian numbers worksheet, students use Sumerian numbers given at the top of the page to rewrite a set of equations and solve, then 'analyze it.' Answers included on page 2.
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Finding Sums to 6

For Teachers Pre-K - 2nd
Pupils explore the additive identity property where they add multiple numbers to get to the number 6. In this number 6 lesson plan, students also work on their addition charts.
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How Much is that Name?

For Teachers 1st - 3rd
Students explore money counting.  In this money problem solving lesson plan, students calculate how much money their name is "worth" using the corresponding alphabet letters which have been assigned a coin value.
Interactive
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Addition: Math 1

For Students 2nd
In this addition worksheet, 2nd graders complete 30 problems in which they add a single digit number to another single digit number using regrouping as needed. They complete 2 problems in which 10 is an addend. They enter their answers...
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Addition and Subtraction Facts to 20 - Manipulative

For Teachers 1st - 3rd
Here is a good lesson that will allow your student to practice their addition and subtraction facts to 20. They practice facts using fact cards and practice strategies such as doubles strategies, and count to 10 strategies.
Lesson Plan
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Addition

For Teachers K - 2nd
Learners study basic number addition. They define terms together at the board: addition, addend, sum. They discuss key words for addition: in all, altogether, total, sum; and key words for subtraction: how many more, difference, fewer....