Better Lesson
Better Lesson: We Are All a Happy Fact Family
Explore the relationship between addition and subtraction with this activity. Help students understand that "every subtraction fact has a related addition number sentence, and every addition fact has a related subtraction number...
SMART Technologies
Smart: Addition Strategies Fact Families
Smart Exchange is an online community that teachers can share resources. This SMART Notebook file is a great introduction to what fact families are and how 3 numbers can be related to one another. This fact house offers activities to...
Sophia Learning
Sophia: Fact vs. Opinion
Learn the difference between fact and opinion as it relates to scientific thinking.
PBS
Pbs Kids Afterschool Adventure!: Operation: Adding Up, Taking Away Activity Plan
In this week's Afterschool Adventure, children will practice and explore strategies for solving addition and subtraction problems, such as using counters and rulers, performing mental math, and drawing pictures. As children encounter...
NumberNut
Number Nut: Subtracting More Than Two Values
Get the facts on how to subtract more than two values in this short subtraction lesson. This lesson offers step-by-step examples, suggested strategies and shortcuts, and links to related interactive games. Both games are fast-paced and...
NumberNut
Number Nut: Subtracting Through Twenty
Review or learn the basics of single-digit subtraction in this concise lesson that has related vocabulary and strategies for solving subtraction problems. This lesson includes lots of examples and links for two interactive subtraction...
Alabama Learning Exchange
Alex: Mix It Up!
By now, students have learned that fact families include both addition and subtraction facts. They have also learned that by reversing the order of the addends, they can form related addition facts with the same sum. The students will...
CK-12 Foundation
Ck 12: Elem Math: Division Patterns Within the Multiplication Table
[Free Registration/Login may be required to access all resource tools.] In this learning module, students relate division patterns to the patterns in a multiplication table. Includes video demonstrating a sample problem [1:21] and a set...
NOAA
Noaa: Ocean Science Careers
Study the different types of ocean related careers that are available and how you can make a difference without having to be a professional.
Smithsonian Institution
Smithsonian National Zoo: Zoogoer Magazine: The Rainbow Connection
Stanley Rand, in his article "Frogs: The Rainbow Connection" looks at a variety of topics related to frogs including types and species, habitats, interesting facts, the difference between frogs and toads, and more.
Organization for Community Networks
Lesson Plan: I've Got Your Number (Number Sense)
An engaging lesson used to review math concepts and facts. Students are certain to "Stay alert," in this card game where each solution is related to the next solution. Sample questions provided. Great problem solving and skill building...