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CK-12 Foundation
Exponential Decay: Cool Sunglasses
Who wouldn't want to wear four pairs of sunglasses? Each pair of sunglasses reduces the percent of incoming light by one-half. An interactive tutorial helps young mathematicians build a graph that models this scenario. They...
Maths Blog
Equivalent Fractions: Equal, Largest, or Smallest
Elementary mathematicians begin by reading a one-page text that explains how to compare fractions. They solve two problems in which they must circle equal fractions in a set. They then solve four problems where a set of five fractions is...
Los Angeles County Office of Education
Assessment for the California Mathematics Standards Grade 2
Test scholars mathematic skills with an assessment addressing addition, subtraction, multiplication, place value, measurement, geometric shapes, expanded notation; and their ability to compare numbers, write number...
5280 Math
Step by Step
One step at a time! A seemingly linear relationship becomes an entirely new type of function. Young scholars build their understanding of step functions by completing a three-stage activity that incorporates multiple representations of...
EngageNY
Grade 5 Math Module 1, Topic E, Lesson 11
Let your understanding of multiplying decimals flourish and multiply. After briefly reviewing place value concepts and how to add and subtract decimals, scholars learn to multiply a decimal fraction (like 0.6) by a whole number. They use...
Illustrative Mathematics
Bank Shot
Young geometers become pool sharks in this analysis of the angles and lengths of a trick shot. By using angles of incidence and reflection to develop similar triangles, learners plan the exact placement of balls to make the shot....
Noyce Foundation
Part and Whole
Now you'll never have trouble cutting a cake evenly again. Here is a set of five problems all about partitioning shapes into a given number of pieces and identifying the fractional amount of each piece. As learners progress through the...
CK-12 Foundation
Multiplication of Whole Numbers by Fractions: Multiplication of Fractions by Whole Numbers
An interactive challenges mathematicians to multiply fractions by whole numbers. A model provides a clear visual aid in preparing whole numbers to be multiplied. Six questions include multiple-choice, fill in the blank, short answer, and...
Curated OER
Fractions
Young mathematicians use fraction names and symbols to describe fractional parts of whole objects or sets of objects. They construct concrete models of fractions, and compare fractional parts of whole objects in a problem situation using...
Curated OER
Multiplying and Dividing Fractions and Mixed Numbers
Help math learners discover how to multiply fractions and mixed numbers. They will explore visual examples of the operations. They also practice solving problems that their instructor models.
Curated OER
Principles of Flight: Flying Paper Airplanes
Students investigate ways to enhance an object's flying ability. In this model construction lesson plan, students construct two paper airplanes, one of which is twice as big as the first. Students compare and contrast the two...
Math Mammoth
Practice Equivalent Fractions
Fourth and fifth graders look at the pictures of nine circle fraction pieces and draw lines between the ones that show the same amount. They label each fraction circle. They split fraction pieces in the next 9 examples, and draw the new...
Math in English
Grade 5 Fractions Word Problems
Young mathematicians apply their fractions skills in the real world with this simple word problem instructional activity.
Curated OER
Clock Fractions
Elementary schoolers generate and manipulate fractions. They review equivalent fractions and use an analog clock to create and add fractions. Pupils work in groups to complete two fraction worksheets.
Curated OER
How Does Your Population Grown?
Do you know how the population has grown of your community? Can you predict the population over the next half century? Can we find an algebraic model that matches our data? These along with many more questions can be researched by...
Curated OER
Introducing the Concept: Percents
Young scholars explore the math concept of percents. In this percents activity, students examine visual examples of the relationships among fractions, decimals, and percents. Young scholars also practice solving problems that their...
Curated OER
Fraction Worksheet
In this fractions worksheet, students complete fraction word problems dealing with numbers up to 12. Students complete 8 problems total.
Scholastic
Study Jams! Fractions
What can quesadillas teach your class about fractions? More than you might think. AJ and Zoe from the StudyJams! crew use this Mexican cuisine to explain how fractions are just equal parts of a whole, defining the key terms numerator and...
Curated OER
Radioactive Decay and Half-Life
High schoolers describe how the mass of a radioactive isotope changes with time and the factors that affect the rate of radioactive decay. They write nuclear decay equations to represent natural transmutation. This activity is...
Curated OER
Tantalizing Tangrams: Fractional Relationships
Students use tangrams to represent parts of a whole. In this fraction instructional activity, students use tangrams to determine fractional relationships between different pieces. Students use the AppleWorks drawing application to...
Curated OER
Fraction Word Problems
In this fractions worksheet, students complete fraction word problems containing 1 digit numbers. Students complete 4 problems total.
Curated OER
Modeling Oil and Gas Reservoirs
Students investigate energy by researching how oil reservoirs work. In this fossil fuels lesson, students conduct an experiment using a half full bottle of water, corn oil and oxygen, recording their data as the elements are mixed...
Curated OER
Fraction Circles
Fourth graders receive a fraction circle and show how each different part makes a whole. Students compare the different fractions that make up a whole. Students choose 2 fractions which are inside a bucket and they compare them both...
Curated OER
Equivalent Fraction Paper Strips
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...