Compare Numbers Using Bar Models

The video tutorial teaches how to compare numbers using bar models and the concept of 'times as many'. It uses relatable examples, such as comparing the heights of Jacob and Sally, to illustrate how multiplication can be visualized. The lesson progresses from simple to more complex examples, demonstrating how to use bar models to solve multiplication problems effectively.

If Jacob is twice as tall as Sally, how many Sallys would you need to stack to match Jacob's height?

• One

• Four

• Two

• Three

In the example where Sally is four times shorter than her dad, how many Sallys would you need to stack to match her dad's height?

• Four

• Two

• Five

• Three

Using bar models, what does 'three times as many as two' look like?

• A single bar of two

• Two bars of three

• Three bars of two

• Four bars of two

How many groups of three are needed to represent 'four times as many as three' using bar models?

• Two

• Three

• Five

• Four

What is the total when you have four groups of three using bar models?

• Nine

• Ten

• Eleven

• Twelve