I like this hands-on approach to maths; great for those outdoor learners ~ this link opens up to an article on Kindergarten Math but so many of the activities can be adapted to younger children, like the leaf activity pictured here.
Pixel People Math Art - creating people out of squares then find area, perimeter and write fractions for the colors used. Also have students explain how their design shows symmetry. Freebie of the math page included.
Toilet Paper Math Challenge Project ~ Area and Perimeter
A great partner activity to use in math! Students must work with a partner in order to answer the following question:What is the largest area and longest perimeter your group can make using only one roll of toilet paper?The packet includes all of the sheets necessary to plan, complete, and display this activity in your classroom!