Other
Teachers on the Web: A Maths Dictionary for Kids
On this site from Aussie School House Teachers on the Web, an Australian K-6 teacher defines and illustrates more than 500 mathematical terms. It is a wonderful dictionary featuring clear and often interactive graphics, great colors, and...
CPALMS
Cpalms: Measure Up! Measuring to Make a Line Plot
[Free Registration/Login Required] In this lesson, students will generate measurement data by measuring lengths using rulers marked with halves and fourths of an inch and show the data by making a line plot. This lesson includes an...
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.
That Quiz
That Quiz: Fracciones Y Decimales
These interactives are designed for the student to practice addition, subtraction, multiplication, and division of fractions and decimals.
Knowledge Share
Super Kids: Math Worksheet Creator
The math worksheet creator allows teachers to create their own math drill worksheets. Teachers can select the type of problem, determine how many numbers they want to use and then just click a button and the worksheet is automatically...
CK-12 Foundation
Ck 12: Arithmetic: Estimation of Whole Number
[Free Registration/Login may be required to access all resource tools.] Round whole numbers in order to estimate sums and differences.
Shmoop University
Shmoop: Fractions & Decimals: Adding and Subtracting Mixed Numbers
The mathematics resource explores addition and subtraction with mixed numbers. Students examine the topics through class notes and examples. Practice problems with solutions are available to check for comprehension of the concepts.
Other
Mathpower: Math Fundamental Assignments
Math variety of concepts, this colorful website is sure to give your students the chance show what they know. Concepts covered include rounding, division with decimals, order of operations, ratio, percent, multiplication, and division of...
ClassFlow
Class Flow: Finding the Common Denominator
[Free Registration/Login Required] This flipchart presents a method for finding the common denominator of fractions.
Quia
Quia: Addition Matching Sums 10 to 18
This website for young children gives them practice adding sums from 10 to 18 in a matching type format.
Other
Center for Game Science: Refraction
Use your knowledge of fractions, to save animals who have gotten stuck in space. Game practices the following concepts: equal partitioning, addition, multiplication, mixed numbers, improper fractions, and common denominators. Teacher can...
CK-12 Foundation
Ck 12: Algebra: Rational Numbers in Applications
[Free Registration/Login may be required to access all resource tools.] Solve real-world problems involving the addition and subtraction of fractions and evaluate change.
Homeschool Math
Homeschool Math: Adding Like Fractions and Mixed Numbers
This lesson teaches how to add like fractions and mixed numbers with like fractional parts using visual models (pies, fraction bars). It includes lots of exercises.
The Math League
The Math League: Decimals, Whole Numbers and Exponents
This tutorial has definitions and examples of decimals, whole numbers, and exponents. In addition, a variety of topics are covered, such as comparing, multiplying and subtracting.
Illustrative Mathematics
Illustrative Mathematics: Finding Common Denominators to Add
Part (a) of this task asks students to find and use two different common denominators to add the given fractions. The purpose of this question is to help students realize that they can use any common denominator to find a solution, not...
Illustrative Mathematics
Illustrative Mathematics: Making S'mores
The purpose of this instructional task is to motivate a discussion about adding fractions and the meaning of the common denominator. The different parts of the task have young scholars moving back and forth between the abstract...
That Quiz
That Quiz
ThatQuiz is an excellent assessment tool for teachers and students. At this site, teachers can create individualized or group assessments on a variety of math topics. Students take these practice assessments directly online and receive...
Illustrative Mathematics
Illustrative Mathematics: Jog a Thon
The purpose of this task is to present students with a situation where it is natural to add fraction with unlike denominators; it can be used for either assessment or instructional purposes. Aligns with 5.NF.A.1.
Illustrative Mathematics
Illustrative Mathematics: Salad Dressing
The purpose of this task is to have students add fractions with unlike denominators and divide a unit fraction by a whole number. This accessible real-life context provides students with an opportunity to apply their understanding of...
CK-12 Foundation
Ck 12: Arithmetic: Decimal Addition
[Free Registration/Login may be required to access all resource tools.] Add and subtract decimals with and without rounding
Saddleback College
Algebra2 Go: Prealgebra
The resource consists of comprehensive learning tools such as class notes, video lectures, and templates through which students can review prealgebra topics.
PBS
Pbs Learning Media: Several Short Rails Make More Than a Whole
In this video segment from Cyberchase, Hacker has sabotaged another section of the Madre Bonita Express track; Digit gets help from Deci in adding decimals to find the right size rail that will repair the track.
National Institute of Educational Technologies and Teacher Training (Spain)
Ministerio De Educacion: Calculo Mental Todo Terreno
Practice your mental math with this application by finding the sum of two: whole numbers, integers, decimals or fractions. You can choose two different levels of difficulty.
McGraw Hill
Glencoe: Self Check Quizzes 3 Add and Subtract Fractions With Like Denominators
Use Glencoe's Math Course 3 randomly generated self-checking quiz to test your knowledge of adding and subtracting fractions with like denominators. Each question has a "Hint" link to help. Choose the correct answer for each problem. At...