The MOM square is worked c2c (corner to corner). This pattern is the May square for the Holiday Celebrations Blanket.

It helps to be familiar with the c2c method.
PDF includes the chart, written instructions as well as color block line instructions.

Finished Size: 15.5″ square

Yarn: #4 worsted weight
Sample used: Hobby Lobby I Love This Yarn!

White (W) – 4.5 oz/255 yds
Red (R) – 1 oz/58 yds

Crochet Hook: Size H/8 (5.0 mm)

Notions: Yarn Needle

Gauge: 6.5 repeats and 17 rows = 4” in pattern

Difficulty: Beginner: Worked corner to corner. It helps to be familiar with this method but there are written instructions as well as a chart.