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Illustrative Mathematics

Representing Half of a Circle

For Teachers 2nd - 4th Standards
Geometric shapes make great visual models for introducing young mathematicians to the concept of fractions. Looking at a series of four circles, young scholars are asked to determine whether or not one half of each circle is shaded. To...
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Lesson Plan
Illustrative Mathematics

Comparing Two Different Pizzas

For Teachers 3rd - 5th Standards
What better way to learn about fractions than with a couple pizzas? Help Jessica figure out how much of the pizza she has eaten, while teaching your class that fractions refer to a specific whole amount. This problem will be challenging...
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Lesson Plan
Curated OER

Equivalent Fraction Paper Strips

For Teachers 2nd - 4th Standards
Young learners compare the relative values of fractions by making physical representations. They fold and label strips of paper that are equal in length to represent "one whole" and the equal parts that fractions represent. Also, they...
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Printables
K-5 Math Teaching Resources

Blank Number Lines Template

For Students K - 6th Standards
It's no secret that number lines are one of the most useful tools for elementary math teachers. Offering a series of six separate number lines of differing scales, this versatile template can be used when teaching about anything from...
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Worksheet
Curated OER

Towers of Three

For Students 3rd - 4th
In this addition/multiplication instructional activity, learners roll a six sided die and make that many towers of 3. They count to find the total and record the totals as ____ groups of 3 is equal to ____. They use a number line at the...
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Lesson Plan
Curated OER

Gifts from Grandma, Variation 1

For Teachers 3rd Standards
Composed of three word problems, this math activity exposes young mathematicians to relationships present in multiplication and division. The first problem is most useful with a tape diagram in which learners are working with equal-sized...
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Lesson Plan
Curated OER

Finding Perimeter and Area

For Teachers 3rd - 5th
Geometers find the perimeter and area of rectangles. They discuss the definitions and characteristics of rectangles and squares. In groups, they use yarn to discover the perimeter of squares and rectangles. They count cubes to explore...
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Lesson Plan
Curated OER

Symmetry with Shapes

For Teachers 3rd - 6th
Students analyze a symmetrical stamp design with an equal balance of light and dark to create a pattern in succession. In this shape design lesson, students review concepts of sign, symbol and language across cultures. Students analyze...
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Lesson Plan
National Gallery of Canada

Counting Circles

For Teachers K - 3rd
Learners look at bands of colors and estimate how many rings of color there are. While working in groups, they come up with a plan of how to accurately count the rings. They attempt to find a pattern in the colors, and decide whether...
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Lesson Plan
Curated OER

Fractions

For Teachers 3rd - 5th
Young scholars determine that a fraction is a part of a whole or part of a group. They write and read fractions and solve various fraction problems. They create their own fraction problem using colored candies for their classmate to solve.
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Lesson Plan
Curated OER

Arranging Chairs (Arrays)

For Teachers 3rd
The creation of arrays is the focus of this mathematics lesson. Pupils consider a situation for a theater stage performance: different amounts of people are coming to the show, and they must arrange the seats in rows of equal numbers. A...
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Lesson Plan
Curated OER

Critical Thinking Strategies

For Teachers Pre-K - 12th
Teach your readers to be critical thinkers. A strategy is outlined that can be used to compare and contrast entities. An example lists four states. The learner removes one state that "does not belong" in the list for some reason, and...
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Worksheet
Curated OER

One and Tens Place Value

For Students 1st - 3rd
Counting is much easier when the objects are arranged in groups of 10! This place-value practice sheet helps young mathematicians grasp ones and tens place value through three exercises. First, they complete three missing addend...
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Lesson Plan
Curated OER

And You Thought Gasoline Was Expensive!

For Teachers 3rd - 12th
Students carry out a cost analysis. In this comparative math lesson, students compare the cost of equal measures of gasoline to mouthwash, house paint, fruit juice, white-out, and other liquids.
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Worksheet
Curated OER

Dividing Evenly into Groups

For Students 3rd - 6th
In this division worksheet, students use pictures to help them divide evenly, solve word problems, and write division problems based on multiplication problems. Students complete 6 sets of problems.
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Lesson Plan
Curated OER

Fractions and Measurement

For Teachers 2nd - 3rd
Using a Smart Board, or a plain ol' white board or chalkboard, the teacher pulls up a grid and demonstrates how squares and rectangles can be divided up into equal parts. The class will get their own graph paper to draw shapes and divide...
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Lesson Plan
Curated OER

Money

For Teachers 3rd
Third graders review the values of quarters, dimes, nickels, and pennies. They discuss how the different types of coins can equal the same amount. Students give examples of ways to make a given amount under $1.00. They explain what the...
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Lesson Plan
Curated OER

Hugs and Tallies

For Teachers 3rd - 4th
Students act out the creation of five tally marks. In this tally mark lesson, students act out how to make tally marks. Four students stand very close together and a fifth student gives them a group hug creating five tally marks.
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Lesson Plan
Curated OER

Fair Shares

For Teachers K - 6th
Young scholars investigate division by sharing food items with their classmates.  In this division activity, students are given a food item which they must equally share among the class using division.  Young scholars predict how many...
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Lesson Plan
Curated OER

Quadrilaterals

For Teachers 3rd - 5th
Students create, classify and sort quadrilaterals. They create several four-sided polygons, then choose their most unique quadrilateral to share with their group.
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Lesson Plan
Curated OER

Quadrilaterals

For Teachers 3rd - 6th
Young scholars construct a variety of four-sided figures using a K'NEX Geometry Set. They view and discuss pictures of shapes, then in small groups they construct as many four-sided shapes as possible using the K'NEX Rods and Connectors....
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Worksheet
Curated OER

Time and Metric Measurements

For Students 3rd - 4th
In this comparing times and measurements instructional activity, students read times in seconds, minutes, and hours and metric measurements of mass and length to compare groups of two and write the symbols for less than, equal to, or...
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Lesson Plan
Curated OER

Money Bags

For Teachers 3rd
Third graders explore different combinations of coins that can be used for specified amounts of money using paper money and tree diagrams. They write money amounts in different forms. Groups utilize a tree diagram imbedded in this lesson...
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Worksheet
Math Mammoth

Remainders in Division Problems

For Students 3rd - 5th
In this math worksheet, students work with division problems that have remainders. They see a set of small pictures showing groups of items. They fill in the blanks in a simple division problem and write the remainder based on the groups...

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