On the Insert tab, click the Table button in the Tables group. In the drop-down menu, select the small boxes that represent columns and rows and select how many rows and columns you want in your table ...
You can manually create a custom Gantt chart from scratch using the native Chart menu of PowerPoint. In its Chart menu, you can find several types of standard charts including line, bar, area, pie, ...
PowerPoint will let you animate chart elements, but the option's not easy to find. If you don't know about it, you might not even go looking for it. You can animate just about anything in PowerPoint, ...