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CK-12 Foundation
Differences of Fractions with Different Denominators
Subtracting fractions with unlike denominators is the focus of an interactive designed to boost mathematicians' problem-solving skills. Five questions challenge participants to answer multiple-choice and true or false questions with help...
Rational Number Project
Initial Fraction Ideas Lesson 22: Overview
Have young mathematicians subtracting fractions in no time with this manipulative-based math lesson. Using their sets of fraction circles, students explore a number of word problems involving the subtraction of fractions before working...
Curated OER
Investigating Fraction Circles
Add and subtract fractions with common denominators! In this fractions instructional activity, upper graders review what they already know about fractions, use manipulatives to compare fractions, and add and subtract fractions.
Curated OER
Addition and Subtraction of Fractions
Learners demonstrate how to solve addition and subtraction of fractions. In this fractions lesson, students use folded paper to shade in fractional parts and identify the sum of the parts shaded.
Math Centre
Fractions: Adding and Subtracting
Young mathematicians piece together the puzzle of fractions. Starting with the addition and subtraction of fractions with like denominators, this series of example problems and skills practice exercises transitions students...
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...
Oddrobo Software
King of Math Junior
Do your students have what it takes to be the king of math? Find out with this fun skills practice game that covers a wide range of topics from counting and basic operations to measurement and fractions.
Curated OER
Crop Circles
Students calculate the area and circumference of a circle. In this geometry activity, students solve word problems with circles and create formulas to calculate the area. They find the rate and complex area of a circle.
Curated OER
Math Games for Skills and Concepts
A 27-page packet full of math games and activities builds on algebra, measurement, geometry, fractional, and graphing skills. Young mathematicians participate in math games collaboratively, promoting teamwork and skills practice.
Curated OER
Initial Fraction Ideas Lesson 21: Overview
Students become familiar with the process of subtracting fractions. In this subtracting fractions lesson plan, students complete examples and then write a story problem. Students continue to practice while sharing their problems.
University of Minnesota
Fraction Operations and Initial Decimal Ideas
Add another strategy to the toolboxes of young mathematicians with this elementary math lesson on using number lines to add and subtract fractions.
Los Angeles County Office of Education
Assessment For The California Mathematics Standards Grade 4
Have scholars show what they know with a 20-page assessment aligned to the California State Standards. The test covers concepts such as large and whole numbers, all four mathematical operations, fractions, decimals, geometric figures,...
Bridges In Mathematics
Grade 2 Comprehensive Growth Assessment
Need to know if your students comprehend all the Common Core standards covered in second grade? This growth assessment will let you know. Find out if your second graders can add/subtract, tell the time, read a bar graph, know their...
Curated OER
Secants, Tangents and Arcs
High schoolers identify chords and angles. In this geometry lesson, students calculate the length of the chords inside and outside of-the circle. They differentiate between tangent and secant lines.
Curated OER
Circumference of a Pumpkin
Fourth graders watch a video and find the circumference of a pumpkin. In this circumference instructional activity, 4th graders watch a video to help them find the circumference of their pumpkins. Students define the word circumference...
Curated OER
How to Subtract to 10
Students subtract to 10 through the use of manipulatives. They will use craft sicks and the fact family on their practice pages. They examine how subtracting one always uses the larger number first.
Curated OER
Numbers and Letters
Students engage in a physical activity that helps them to distinguish the difference between numbers and letters.
Curated OER
Handling Data: Comparing Distributions
Learners gather information by analyzing graphs, diagrams and pie charts. In this graphs and diagrams instructional activity, students complete addition and subtraction problems. Learners discuss a pie chart. Students use information to...
CK-12 Foundation
CK-12 Middle School Math Concepts - Grade 6
Twelve chapters cover a multitude of math concepts found in the Common Core standards for sixth grade. Each title provides a brief explanation of what you will find inside the chapter—concepts from which you can click on and learn more...
Curated OER
Exploring Equivalent Fractions
An extensive instructional activity explores equivalent fractions and is intended for three 60-minute periods. Young mathematicians compare and order fractions with like and unlike denominators. Included are worksheets, assessments, and...
Curated OER
Math in English Skills III Exercise Book: Understanding Fractions
Fractions can be tricky, and there is no better way to tackle tricky topics than with a visual representation. Intended for learners in grades two and three, this set of printable worksheets provides a variety of fractions represented in...
West Contra Costa Unified School District
Conics Introduction and Parabolas
Where did conic sections get their name? The equation and graph of a parabola are developed from the definition of the conic section. Teacher examples on graphing the equation and writing an equation from the graph round out the plan.
Todd Bowden
Number Line
Arrange these in order on a number line:
95%
1/3
.700
3/5
5/6
50%
.200
Was that too easy? Don't worry! This app gradually gets more difficult.
Fairbanks North Star Borough School District
Eric Carle Mural
Inspire first grade artists to learn about abstract and realistic art while reading Eric Carle's Where are you Going? To See My Friend. Young artists design and make a mural collage by tearing shapes of paper while comparing English and...