Giggles and Wiggles ideas -- GIANT SHAPE MATCH: Check out this awesome indoor math activity for toddlers and preschoolers; an awesome rainy day activity;
Dinosaur week: Fun & Simple dinosaur activity for kids! Maybe for older kids give each shape a numerical value and have them add how much their dino is worth. Can use with class to compare/contrast amounts, etc.
How to teach your kids to be mindful, including the benefits to them, mindfulness games to play, and more. ( "some" things in here sound quite good)
Hands-on activities to teach angles. use for angle types
Geometry Practice Book: Second Grade Common Core Aligned