Khan Academy
Khan Academy: Math Patterns 1
Identify arithmetic patterns (including ones in the addition or multiplication tables), and explain them using properties of operations. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a...
AAA Math
Aaa Math: Properties of Addition
Explains the four mathematic properties of addition. Gives exercises and games to practice this skill.
![K 5 Math Teaching Resources: Turn Around Dominoes [Pdf] Activity](https://static.lp.lexp.cloud/images/attachment_defaults/resource/large/FPO-knovation.png "K 5 Math Teaching Resources: Turn Around Dominoes [Pdf] Activity")
K-5 Math Teaching Resources
K 5 Math Teaching Resources: Turn Around Dominoes [Pdf]
Write addition number sentences using the commutative property.
Illustrative Mathematics
Illustrative Mathematics: 3.oa Making a Ten
This task builds on that knowledge by asking them to study more carefully the make-a-ten strategy that they should already know and use intuitively. Aligns with CCSS.Math.Content.3.OA.D.9 Identify arithmetic patterns, and explain them...
Khan Academy
Khan Academy: Patterns in Multiplication Tables
Practice discovering and explaining patterns in multiplication tables. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints. CCSS.Math.Content.3.OA.D.9 Identify...