Complete quizzes/worksheets when they come up on the website. On the cool math website, do a few of the categories. My favorite is crop art, especially an artist named Stan Herd. (met him in Kansas)

www.crickweb.co.uk/ks2numeracy-shape-and-weight.html#quad

www.absorblearning.com/mathematics/demo/units/KCA007.html#Exercises

www.coolmath.com/0-geometry-math-art.html

www.mentalfloss.com/quiz/quiz.php?q=248&p=1

A Fun Texas Quiz
https://www.mentalfloss.com/quiz/quiz.php?q=961