Curated OER
Unexpected Answers
Students explore and complete a variety of activities demonstration probability. They make observations about the results of the activities. Students complete and discuss conditional probability. Also, students draw conclusions about...
Curated OER
My Math Curse!
Math novices examine how math can help them in real-world situations. They listen to the book The Math Curse by Jon Scieszka, solve various word problems from the book, explore various math websites, write original math word problems,...
Curated OER
Buying and Budgets
Fourth graders add and subtract decimals as they use a table to solve budget based problems.
Virginia Department of Education
Mathematics Vocabulary Cards – Grade 4
An excellent way to reinforce math vocabulary in your classroom! Seventy-eight posters focus on number and number sense, computation and estimation, measurement, geometry, probability and statistics, and patterns, functions, and algebra.
Curated OER
Perfect Squares and Factoring
A teacher guided lesson plan on perfect squares and factoring. They discuss perfect squares, observe the expansion steps for finding the product, and practice solving problems. They complete a worksheet on perfect squares and factoring.
Curated OER
Arithmetic Artistry
Students create a classroom quilt that illustrates the many unique ways that students use math skills.
Curated OER
Unexpected Answers
Students consider probability problems with unexpected and surprising answers.
PBS
Pbs: Addition of Fractions Using a Visual Model
Use a visual model to add fractions with unlike denominators. This video focuses on using an equivalent fractions chart to compare fractions and find the correct sum.
Visual Fractions
Visual Fractions: Addition of Like Fractions With Circle Models
Brush up on your fraction addition skills with this interactive game. Practice adding fractions and mixed numbers with common denominators. Don't worry! If you need a little assistance, examples and explanations are included.
Visual Fractions
Visual Fractions: Add Fractions With Number Line or Circle Models
This site is provided for by Visual Fractions. Add mixed numbers with like denominators using circles. Click on the "Explain" button to understand the answer.
Visual Fractions
Visual Fractions: Addition of Like Fractions With Number Line Models
Test your aptitude at adding fractions on a number line. Enhance your skills using this interactive math game. Immediate feedback and examples provided.
Khan Academy
Khan Academy: Add and Subtract Fractions Word Problems
Practice solving fraction addition and subtraction word problems. The fractions in these problems have unlike denominators. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or...
Khan Academy
Khan Academy: Add and Subtract Fractions: Word Problems
In this exercise, students practice adding and subtracting fractions with unlike denominators word problems. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Visual Fractions
Visual Fractions: Add Unlike Fractions With Number Line Models
Boost your ability to add number line fractions with unlike denominators with this interactive math game. A basic understanding of factors is key to success. Instructions with detailed examples are easily accessible.
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.