As requested by a crocheter, this seven-panel school colour-themed crochet cable blanket is easy. There is a 6-row repeat after you get established.
Speaking bluntly, I've never done a cable like this before using double crochet spacing between the cable work. It's usually single crochet. It means this will crochet much faster for growth.
This is the Braided School Colors Blanket by Marianne Forrestal.
If you prefer a solid cable blanket, include the panels. Here is a free pattern you can use. It's the Cable Braided Cable Blanket.
You may be interested in another blanket that is school-themed here. Some of these ideas are for brand-new crocheters too. Click on the picture to see more, ALL have a free tutorial to follow.