Curated OER
What Causes Irregular Temperature Patterns?
Students examine common trends in climate across the U.S. They identify the anomalies in hot-cold temperature differences in the U.S and locate them on the map using latitude and longitude coordinates.
Curated OER
Code Crackers
Students work in teams creating and posing math rules and trying to guess them using a formula controlled worksheet they create with Excel. Student pairs take turns to see who can crack the other's code the fastest.
Curated OER
"NSN, Fractions/Decimals" Investigations
Fifth graders engage in a "layered" unit of discovery. There are three levels of potential learning opportunities, in the spirit of the 2010 Olympics in Vancouver (bronze, silver, gold). The instructional activity is based upon fractions.
Curated OER
Decimals: Hundredths
For this math worksheet, students find the values of the fractions and convert them to decimals. They also change decimals into fractions.
Curated OER
Decimals: Tenths
In this math worksheet, students convert the fractions to decimals. They also practice converting decimals into fractions or mixed numbers.
Illustrative Mathematics
Illustrative Mathematics: Comparing Fractions Same Denominator, Assessment
This task is about comparing two fractions with the same numerator or the same denominator by reasoning about their size, and understanding that such comparisons are valid only when the fractions refer to the same whole. Aligns with...
Khan Academy
Khan Academy: Comparing Fractions With the Same Denominator
In this exercise, students practice comparing fractions with the same denominator. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Khan Academy
Khan Academy: Add and Subtract Fractions Word Problems (Same Denominator)
Practice solving word problems by adding and subtracting fractions. The fractions used in these problems have like (common) denominators.
Khan Academy
Khan Academy: Common Denominators
Practice rewriting fractions to have the same denominator. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
AAA Math
Aaa Math: Adding Mixed Numbers With the Same Denominator
This site explains how to add mixed numbers that have the same denominator, and includes games to practice this skill.
Khan Academy
Khan Academy: Compare Fractions With the Same Denominator
Compare two fractions that have the same denominator using greater and less than symbols. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Illustrative Mathematics
Illustrative Mathematics: Comparing Fractions Same Numerator, Assessment
This task is about comparing two fractions with the same numerator or the same denominator by reasoning about their size, and understanding that such comparisons are valid only when the fractions refer to the same whole. Aligns with...
AAA Math
Aaa Math: Comparing Fractions With the Same Denominator
This resource describes how to compare fractions with like denominators and provides an opportunity for students to practice the skill through self-checking exercises and games.
CK-12 Foundation
Ck 12: Elem Math: Fractions With Common Denominators Word Problems
[Free Registration/Login may be required to access all resource tools.] In this learning module, students are asked to solve word problems where they must add and subtract fractions that have the same denominators. Includes video...
CK-12 Foundation
Ck 12: Elem Math: Subtracting Fractions With Common Denominators
[Free Registration/Login may be required to access all resource tools.] In this learning module, students are asked to subtract fractions that have the same denominators. Includes video demonstrating a sample problem [1:03] and a set of...
CK-12 Foundation
Ck 12: Elem Math: Subtracting Mixed Numbers With Common Denominators
[Free Registration/Login may be required to access all resource tools.] In this learning module, students subtract mixed numbers that have the same denominators. Includes video demonstrating a sample problem and a set of practice...
CK-12 Foundation
Ck 12: Elem Math: Adding Mixed Numbers With Common Denominators
[Free Registration/Login may be required to access all resource tools.] In this learning module, students add mixed numbers that have the same denominators. Includes video demonstrating a sample problem [1:36] and a set of practice...
Khan Academy
Khan Academy: Add and Subtract Rational Expressions: Unlike Denominators
Add and subtract rational expressions with relatively prime denominators by manipulating them to have the same denominators. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or...
Khan Academy
Khan Academy: Add & Subtract Rational Expressions: Unlike Denominators
Add and subtract rational expressions with relatively prime denominators by manipulating them to have the same denominators.
Calculator Soup
Calculator Soup: Lcd Calculator Least Common Denominator
Use this Least Common Denominator Calculator to find the lowest common denominator (LCD) of fractions, integers and mixed numbers. Finding the LCD is important because fractions need to have the same denominator when you are doing...
AAA Math
Aaa Math: Comparing Fractions Like Denominators
This personal site explains how to compare fractions with the same denominator, gives examples, and includes games to practice the new skill. CCSS.Math.Content.3.NF.A.3.d Compare two fractions with the same numerator or the same...
AAA Math
Aaa Math: Subtracting Fractions With Same Denominator
Gives a brief explanation of how to subtract fractions with the same denominator. Gives practice, and games to play to use this skill.
AAA Math
Aaa Math: Adding Fractions With the Same Denominators
This site describes how to add fractions with like denominators. It provides exercises and games to practice the skill.
AAA Math
Aaa Math: Subtracting Fractions With the Same Denominator
This site describes how to subtract fractions with like denominators. It provides exercises and games to practice the skill.