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Worksheet
Curated OER

Finding the Percent of Iron in Lawnsand

For Students 9th - 12th
In this percent of iron in lawnsand instructional activity, students perform a titration of lawnsand using potassium manganate (VII) solution and find the number of moles of iron in the sample. Students use the number of moles to find...
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Lesson Plan
Curated OER

Teaching Radioactive Decay: Radioactive Half-life And Dating Techniques

For Teachers 9th - 12th
Students generate a radioactive decay table for an imaginary element using a box filled with pinto beans and M&M's. They use their data to plot a decay graph, develop the concept of half-life, and use the graph to "age" several samples.
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Lesson Plan
Curated OER

Initial Fraction Ideas Lesson 10: Overview

For Teachers 3rd - 4th
Third graders use strips of paper to find equivalent fractions. They will fold paper into thirds and shade 2/3 of the paper. Then fold the same paper in six parts and predict how many parts will be shaded. They will repeat again folding...
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Lesson Plan
Illustrative Mathematics

Banana Pudding

For Teachers 4th - 6th Standards
Making banana pudding despite misplacing your one-cup measuring cup is easy as long as you can find your quarter-cup measuring cup!Ā This real-life activity provides a good opportunity for learners to interpret division of a whole number...
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Assessment
Curated OER

2000 U.S. National Chemistry Olympiad National Exam - Part I

For Students 9th - 12th
The National Chemistry Olympiad exams are comprehensive tests covering an entire Ā year of chemistry concepts. You can use them as practice for competing in the challenge, or simply as a review, or as an actual final exam for your general...
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Lesson Plan
Illustrative Mathematics

Finding the Line of Symmetry

For Teachers 3rd - 5th Standards
Can you find the line of symmetry? That's what your students will demonstrate by completing this worksheet. The task gets increasingly difficult as shapes are included that have one line of symmetry, no lines of symmetry, and multiple...
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Lesson Plan
Curated OER

Linear Inequalities in One and Two Variables: Rays and Half Planes

For Teachers 9th - 12th Standards
Define rays and half planes, including the concepts of boundary lines and prerequisite knowledge of coordinate planes. Given linear inequalities in one and two variables, your class will compare the differences. They will also graph...
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Lesson Plan
Curated OER

"Pizza"rama With Fractions!!

For Teachers 3rd
Young mathematicians explore number values by utilizing food as a visual aide. They discuss the differences between halves, fourths, and eighths and how they are visually represented by a pizza. Then create their own pizza in class and...
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Worksheet
Common Core Sheets

Finding Percent of Fractions

For Students 6th Standards
Sixth graders read word problems that involve finding the percent of an item, given the fraction.Ā 
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Activity
American Museum of Natural History

Finding Fossils

For Students 6th - 12th
How does one go about finding fossils? Find out with an informative webpage that looks at the digging process, showcases rocks and common fossils, helpful tips, and a list of archeological do's and don'ts.Ā 
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Worksheet
Curated OER

Finding a Half on a Number Line

For Students 3rd - 4th
In this 1/2 instructional activity, students fill in missing numbers on a number line, finding halves. A reference web site is given for additional activities.
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PPT
Curated OER

Fraction XII: Subtracting Unlike Denominators

For Teachers 4th - 5th
This fractions PowerPoint defines and gives examples of multiples and least common multiple, then models how to list multiples and circle the least common multiple. Each step to use in subtracting fractions with unlike denominators is...
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Worksheet
Curated OER

Fraction of a Number

For Students 4th - 6th Standards
Whether you need a math drill or a comprehensive review, here is a great addition to any math lesson. After reviewing how to find fractions of whole numbers, pupils work on problems, such as 1/8 of 72 and 1/2 of 114. Use this activity as...
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Lesson Plan
Curated OER

Locating Fractions Greater than One on the Number Line

For Teachers 3rd - 5th Standards
Supplement your lesson on improper fractions with this simple resource. Working on number lines labeled with whole numbers between 0 and 5, young mathematicians represent basic improper fractions with halves and thirds. The fractions...
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Worksheet
Curated OER

Line of Symmetry

For Students 3rd - 4th Standards
Where is the line of symmetry in these shapes? Review this concept using the visual guide at the top of the page, explaining how some shapes have multiples lines. Consider demonstrating this concept with large cut-outs, physically...
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Worksheet
Curated OER

Number Wall

For Students 2nd - 3rd Standards
Use the number wall to practice addition, evens and odds, missing addends, and doubling. Learners answer various questions based on six numbers, filling in squares with digits. They list the odd numbers and total them, then list the even...
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Lesson Plan
Curated OER

Which is Closer to 1?

For Teachers 3rd - 5th Standards
A seemingly simple question that reveals a lot about a student's understanding of fractions. In finding an answer, learners compare fractions with different denominators that are both greater and less than one. No number line is...
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Assessment
Mathed Up!

Fractions of an Amount

For Students 5th - 7th Standards
After viewing a video on fractional amounts, young mathematicians put their new knowledge to the test. Throughout the assessment, class members find the fractional amount for prices, times, and populations. There are a few percent and...
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Assessment
Illustrative Mathematics

Find 1/4 Starting from 1, Assessment Version

For Students 3rd Standards
Where does a quarter go? Given a number line, the short task asks individuals to place the number one-fourth correctly upon it. The writers developed the task to demonstrate ways to assess critical skills from the CCSS.
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Worksheet
Curated OER

Find Missing Fraction Worksheet

For Students 5th - 6th
In this fractions worksheet, learners analyze the positive and negative fractions on eight number lines. Students name the two missing fractions on each number line.
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Lesson Plan
Curated OER

Which Fraction is Bigger or Smaller?

For Teachers 4th - 5th
Compare fractions with common numerators! Pupils look at fractions with different denominators and the same numerator to find which one is bigger. They look at hands-on manipulations of fractions to understand the concept of why one is...
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Worksheet
Curriculum Corner

Fraction Brochures

For Students 4th - 6th Standards
Make fractions fun and interesting by using a brochure form. Young mathematicians practice and gain a better understanding of how to add and subtract fractions, simplify fractions, and find LCD (least common denominator). The resources...
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Lesson Plan
Illustrative Mathematics

Half of a Recipe

For Teachers 4th - 6th Standards
Kids love to cook! What is a better place to learn mixed numbers than with a recipe? It is up to learners to decide how they want to divide this recipe in half. They may choose to model the mixed number and then divide the model by two....
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Activity
Curated OER

Finding Common Denominators to Subtract

For Teachers 5th Standards
Subtracting fractions with unlike denominators can be overwhelming, but in this task, 5th graders work systematically to break down the procedure through three questions. The first two questions askĀ for pictures to be drawn along with...

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