How to Make a Decision Tree in Powerpoint 2013 How to Make a Decision Tree in PowerPoint Now that we've discussed what a decision tree is and let'due south become ahead and start making it on PowerPoint! Step 1: Open MS PowerPoint on your reckoner. Making a decision tree ppt in PowerPoint is piece of cake. Y'all can use whatsoever of the two ways to make a decision tree ppt—either draw by using a decision tree template PowerPoint or use SmartArt Graphics. Let's see how to make a decision tree in PowerPoint using SmartArt Graphics. Step two: Insert a blank slide from the New Slide choice. Click the Insert tab and then select SmartArt Graphics from the Illustrations section. A dialogue box will open. You lot can see the dialogue box in the image below.