Place Value Cups. Use the cups to understand place value practice counting forward and backward learn the names of large numbers decompose numbers to expanded form. I would either label the cups 'ones' 'tens' etc. or add a comma cup or decimal point cup
Preschool kids will have a blast while playing this simple Smack the Number counting game! Work on number recognition and one to one correspondence in a fun way! This game would also work well for alphabet and sight word recognition.
Texture & pattern: Fibonacci spiral patterns appear in many plants, such as pinecones, pineapples, and sunflowers. The patterns consist of spirals that curve around a surface both clockwise and counterclockwise.
Snowflakes are gorgeous. Only wish I could see them up close like this when they fall. "Russian photographer Alexey Kljatov has created an ingenious and inexpensive DIY camera rig capable of capturing excellent close-up pictures of snowflakes.
"The Golden Rectangle, the Golden Triangle, and the Golden Pyramid, all based on the Golden Ratio are all appear prominent in the work of Leonardo Da Vinci. He referred to the Golden Ratio as the "divine proportion".