Multiplying Fluently Using the Half of 10 Strategy

This lesson teaches students how to multiply fluently using the 'half of 10' strategy. It begins with a review of multiplication facts for 10s and addition doubles, which help in understanding halves. The lesson then demonstrates how to apply the strategy to multiply numbers like 5 by 4, 5 by 8, and 3 by 5, emphasizing quick and correct solutions.

Can you explain the relationship between groups of ten and multiplication?

What is the product of 3 multiplied by 5 using the half of 10 strategy?

What does it mean to multiply fluently, and how can the half of 10 strategy assist in this?