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Curated OER
Measuring Mixed Numbers
Mixed numbers can be added conceptually, algorithmically, and physically. Have the class visualize mixed numbers by adding fraction bars together. They then discover the algorithmic process that simplifies adding mixed numbers. Finally,...
Illustrative Mathematics
Pick Two
Learning to break apart numbers into smaller pairs is a critical step young mathematicians take as they develop their number sense. To practice this skill, children are provided with sets of three numbers and are asked to pick the two...
Curated OER
Absolute Value and Basic Operations With Real Numbers
Middle schoolers investigate the mathematical concept of absolute value by counting the number of steps taken in two directions. Using the number line the teacher can note how they can forward and backward without changing the absolute...
EngageNY
Adding and Subtracting Expressions with Radicals
I can multiply, so why can't I add these radicals? Mathematicians use the distributive property to explain addition of radical expressions. As they learn how to add radicals, they then apply that concept to find the perimeter of...
EngageNY
The Geometric Effect of Some Complex Arithmetic 2
The 10th lesson in a series of 32, continues with the geometry of arithmetic of complex numbers focusing on multiplication. Class members find the effects of multiplying a complex number by a real number, an imaginary number, and another...
Curated OER
Multiplying and Dividing Whole Numbers
In this multiplication and division worksheet, students practice multiplying and dividing whole numbers with different pictures to illustrate their problems. Students complete 29 problems.
Curated OER
The Meaning of Whole Numbers
For this whole numbers worksheet, students fill in different charts asking about the place value of various whole numbers. Students complete 8 problems.
Curated OER
Dragon Math
Pupils engage in a lesson plan which provides a fun way to increase a student's ability to combine and separate numbers to form landmarks. They access a game online and play in pairs.
Pennsylvania Department of Education
Shapes Around Us
Learners use manipulatives to study shapes. They sort shapes and use correct geometric terminology to describe them. Students find real-life examples of 2 and 3 dimensional shapes, and classify figures in their classroom according to...
Curated OER
Perfect Numbers?
Students explore all types of numbers. In this factors, perfect numbers, abundant numbers, and defective numbers lesson students investigate the attributes of certain types of numbers and complete an activity sheet.
Curated OER
Placing Negative Numbers On A Number Line
Fifth graders review the concept of negative numbers and how the are placed on a number line. After the review, 5th graders practice placing negative numbers on a number line in a whole class setting.
Curated OER
Two Digit Addition (No regrouping)
In this two digit addition without regrouping worksheet, 2nd graders will find the sums of 18 problems and solve 3 word problems.
Curated OER
The Very Hungry Caterpillar - Teaching Shapes
Students identify two- and three-dimensional figures and associate them with real-world objects. In this geometry instructional activity, students are read The Very Hungry Caterpillar by Eric Carle and complete several activities...
Curated OER
Dividing with Fractions
Use paper strips or models to relate division problems to division of fraction problems. Since the materials can be broken up, it helps them to show how they can complete repeated subtraction with fractions and not just whole numbers.
Illustrative Mathematics
Cynthia's Perfect Punch
Using a real-world example, this problem illustrates the thought process that learners need to engage in to understand adding mixed numbers with common denominators. First by looking at estimation, and then by drawing models that...
Curated OER
How using number patterns help us add or subtract
Second graders use a number line to understand multiples. In this number line lesson, 2nd graders use a floor size number line and calculate problems with multiples. Students complete a worksheet with multiples.
Curated OER
Addition Facts to 18
In this simple addition worksheet, 3rd graders solve 14 problems adding 2 one-digit numbers. Students also solve 3 problems adding 3 one-digit numbers. Finally, students solve 3 word problems involving simple addition.
Curated OER
Using a Hundreds Chart
Youngsters participate in three activities using the hundreds chart. They will choose numbers to add up to one hundred. Whoever gets the most combinations wins. Two variations of the game are supplied.
Curated OER
Easy Addition
Learnes practice an alternate way of carrying when doing addition. In this addition lesson plan, everyone applies an alternate algorithm when they need to carry when adding. They work from left to right instead of starting in the ones...
Curated OER
Handcarts - A Unique Form of Transportation
An interesting historical fact about how handcarts benefitted to the Mormon pioneers is the context behind this math lesson plan. Using given facts and figures regarding the handcart, pupil pairs create math word problems, share them...
Curated OER
Using 10 to Add 7, 8, and 9
In this using ten to add to seven, eight and nine worksheet, students, working with a partner, practice adding various numbers to the number ten for mastery.
Curated OER
The Five Number Game
Young scholars explain what it means to square numbers. They explain what it means to cube numbers. Students define prime numbers using their own language. They are introduced to the problem by playing one game as a class.
Curated OER
Integer Addition
Seventh graders explore the concept of integer addition. For this integer addition lesson, 7th graders tell stories involving addition and subtraction. Students walk on a number line given directions such as add 3 or add -2. Students...
EngageNY
Families of Parallel Lines and the Circumference of the Earth
How do you fit a tape measure around the Earth? No need if you know a little geometry! Pupils begin by extending their understanding of the Side Splitter Theorem to a transversal cut by parallel lines. Once they identify the...