Learn to Multiply by 5! (Super Easy Math Secrets!)
This video is a perfect resource for introducing or reinforcing multiplication by five in your classroom. We answer a student’s great question (“How do I multiply by five?”) by breaking down the core concepts into two simple, memorable secrets!
Key Concepts Covered:
Secret 1: Skip Counting! We clearly establish that multiplying by five is just counting by fives (5,10,15,20, etc.), utilizing a skill students likely already possess.
Secret 2: The 5 and 0 Pattern! We highlight the essential and reliable pattern: every answer when multiplying by five will always end in a 5 or a 0. This provides a valuable self-check strategy for your students.
Strategies & Engagement:
Hands-On Groups: We use groups of five (fingers/hands) to visually represent the multiplication, connecting the abstract concept to concrete counting.
Real-World Application: The lesson includes practical word problems using flowers with five petals and nickels (5 cents), helping students see the relevance of multiplication in everyday contexts.
Quick Review: The video concludes with a concise review of the two main secrets, solidifying the learning.
Common Core Standards in this Video:
- 3.OA.A.1: Interpret products of whole numbers (e.g., interpret 5×7 as the total number of objects in 5 groups of 7 objects).
- CCSS.Math.Content.2.NBT.A.2: Count within 1000; skip-count by 5s, 10s, and 100s.
- CCSS.Math.Practice.MP.7: Look for and make use of structure