Chinuch.org is one of the sites that has valuable learning/activity materials to help learners of Hebrew and/or Judaism. Their learning materials can also be used in classroom setting. They cater to all grade levels (from Early Childhood to High School ). Signing-in is required to download their free materials.
For me, learning Hebrew is like a destination; everything that I experience along the way is as valuable as the fluency itself.
Journey To Hebrew 