📊🤔Explore-Lesson 5.3 Finding Factors Mentally

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  • Points 2
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Mathematicians can systematically use multiplication facts and division strategies to find factors. 

This is a "T" chart. blank T chart.PNG

 

The numbers that are directly across from each other on the t-chart are two factors that are multiplied together to produce the multiple, or the number being factored. 

t chart 1.PNG

Next, is the number divisible by 2? Remember, only even numbers are divisible by 2. The number 2 is one factor, and the other factor would be half of the number being factored. 

t chart 2.PNG

Now repeat what you just did for 2, with 3,4,5,etc.

t chart 3.PNGt chart 4.PNG

The last numbers on the chart is 4 and 6. This creates a gap where you need to decide if there are missing factors. 

t chart 5.PNG

 

Student Task: Make your own "T Chart" for the number 30. When you are done, you may recored yourself explaining your chart, take a picture of your work, or type the factors you found.

 

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