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Lesson Plan
Curated OER

Why Does ASA Work?

For Teachers 9th - 10th Standards
Your geometry learners explore Angle-Side-Angle congruence in this collaborative task. The sum of the interior angles of all triangles being one hundred eighty degrees, is the key learners will discover as they explain their reasoning...
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Lesson Plan
Curated OER

The Attack of the Manhole Monsters

For Teachers 9th - 12th
Learners explore the concept of similarity. They examine such topics as ratio of corresponding sides, internal ratios and scaling factors. After watching a video, student groups perform experiments outside the school building.
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Lesson Plan
Curated OER

Confidence Intervals: Population Mean; Population standard Deviation Known

For Teachers 12th - Higher Ed
In this confidence interval worksheet, students examine a given confidence level and sample data to determine the margin of error, identify a confidence interval, list the mean and give the standard deviation. Students complete seven...
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Worksheet
Curated OER

Proofs

For Students 8th - 11th
In this geometric proof learning exercise, students compose 20 triangle congruency proofs. Students will decide if there is enough information in problems 1-6 to prove if any triangles are congruent. In problems 17 to 20, students use...
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Activity
Illustrative Mathematics

How is the Weather?

For Teachers 8th - 12th Standards
This activity asks learners to interpret data displayed on a graph within the context of the problem. Students are given three graphs that show solar radiation, or intensity of the sun, as a function of time. They are also given three...
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Lesson Plan
Curated OER

Butterfly Addition: Color by Numbers

For Teachers K - 1st
Children learning to add numbers up to 11 develop the strategy of using the larger number as the first addend and counting on from there to find a sum. They define addition and review the meaning of the plus (+) symbol. To practice, they...
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Lesson Plan
Curated OER

Functions

For Teachers 9th - 10th
In this algebra worksheet, learners look at 4 sets of relations and determine if they are functions. Students are provided with the graphs of three functions and determine the function value. Two relations are graphed on the coordinate...
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Worksheet
Curated OER

Linear Equations

For Students 8th - 9th Standards
Pre-algebra pupils examine the rate of change and how we can interpret it as a linear function. They are introduced to slope-intercept equations and graphs. Plenty of instruction is provided along with example problems. Note that even...
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Worksheet
Curated OER

Pizza Fractions

For Students 3rd - 5th
Give your young math scholars success with fractions by relating it to something they know and love: pizza! Five images of partially-eaten pizza pies are pictured, and must be matched to the corresponding fraction. Bring in a real pizza...
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Worksheet
Curated OER

How Many?

For Students Pre-K - K
How many cats are there? Dogs? As learners examine a set of images, they fill in a chart to indicate how many of each image there are. In the first series, there are four dogs and two cats. In the second, there are three planes and six...
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Lesson Plan
Curated OER

Geometry, Pi, and Ancient Civilizations

For Teachers 8th - 9th
By working together, pairs of students will complete a Pi webquest. Using the internet, they examine the ways people in the Ancient Civilizations of Egypt, Babylonia and Greece used Pi. To end the lesson, they review the concepts of...
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Worksheet
Curated OER

Comparing Fractions with Like Numerators or Denominators

For Students 4th - 5th
There are five fraction models here and each has a corresponding numeric fraction it represents. Scholars use the models to better comprehend fractions as they match each to its correct numeric form. Although all of these fractions could...
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Lesson Plan
Curated OER

Decorate-a-Cookie

For Teachers K - 5th
Students use cookies and candy to practice finding the sum of three single-digit numbers.
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Lesson Plan
Curated OER

Investigating Nets and Polyhedra

For Teachers 5th
Fifth graders create a net for a given polyhedron. They determine the corresponding polyhedron for a given net. Students investigate several polyhedra (cube, tetrahedron, and one of their choosing) and their corresponding nets. They...
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Worksheet
Curated OER

Introduction: What Time Is It?

For Students 3rd - 4th
In this time worksheet, students draw the minute and hour hand to depict a given time. Examples and explanations are provided at the beginning of the worksheet. This one-page worksheet contains two independent practice problems.
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Lesson Plan
Curated OER

Trading Pennies and Dimes

For Teachers 2nd
Second graders, while in the computer lab, explore the strategy of making and grouping to ten. They assess how to trade pennies for dimes and create original word problems along with corresponding number sentences to illustrate grouping...
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Lesson Plan
Curated OER

Making Cents of Division

For Teachers 3rd
Third graders use pennies as manipulatives to solve simple division problems. They create division number sentences to correspond with each exercise. This is a good, hands-on way to teach the concept of division.
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Worksheet
Curated OER

Adding and Subtracting Matrices

For Students 9th - 11th
In this adding and subtracting matrices worksheet, students add 2 sets of matrices and subtract one. They are introduced to the rules of adding and subtracting matrices.
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Worksheet
Curated OER

See, Say, Write, and Count! Worksheet

For Teachers K - 1st Standards
In this number recognition worksheet, students say the numbers, trace the number word, and then write the number word on the lines for numbers 1-10.
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Lesson Plan
Curated OER

Tallies Tell It All

For Teachers K
Students count a number of objects and create a tally with groupings of five to illustrate their total. They identify a number of things both at school and at home that can be counted with tallies and create appropriate tallies for each.
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Lesson Plan
Curated OER

Comparing M&M's

For Teachers 2nd - 3rd
Young scholars sort a bag of M&M's by colors and solve a variety of comparison problems. They determine which pile of M&M's has the most, the least, and answer questions comparing two piles. Students also order the piles of...
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Worksheet
Curated OER

Quotable Puzzles

For Students 7th - 9th
In this algebra puzzle worksheet, students evaluate 25 different expressions using the values provided for a, b, c, x, y, and z. They then match the answer to the correct letter of the alphabet and use the letters to solve the quotation...
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Worksheet
Curated OER

Algebra Card Trick

For Students 9th - 11th
In this Algebra I/Algebra II worksheet, students explore the algebra explanation of a math card trick.  The one page worksheet contains one problem.  The solutions and explanations of the trick is provided. 
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Lesson Plan
Curated OER

Exploring Teen Numbers

For Teachers 1st - 2nd
Students explore place value.  In this numeration lesson, students use ten frames to represent numbers greater than ten.  Students read two digit numerals and build the corresponding number using counters and ten frames.  Students...