Kindergarten, Kindergarten has some great journal prompts to get your own creative juices flowing.
Kathryn has so many amazing ideas, she set up a new website and you will not be disappointed! Wow is all I have to say! You can find it here.
First GradeHomeschool Swag is offering a freebie that has 114 pages of neat math ideas for a First Grade Journal. It also includes a few religious pages if that is something that you would like to use. You can find it here:
My Second Grade Journal shares how she sets up her second grade math journals.
K-5 Math Teaching Resources is an amazing site for more than just 3rd grade. This link will take you to an entire page full of links to 3rd grade journaling activities complete with Common Core Standards! Excellent resource!
Tales of Frogs and Cupcakes has a blog full of awesome math journal ideas! You can find her here:
Runde's Room has an amazing blog that features Math Journal Sundays where she blogs about Interactive Math Journal ideas with pictures!! So cool!
Simply Second Resources has a post that gives great ideas for foldables in the Math Journals!