This website offers a ton of lesson plans. You can search by subject, grade, and even key word. This particular page I searched Cooperative Learning and this is the search page results. This can be really useful if you are in a pinch and do not have time to write a lesson plan yourself.
This website offers a variety of subjects for all grades Pre-K thru high school. I like this site because it also has a Lesson Plan Writing guide for you to follow.
This is a fantastic website that contains many different science experiments that align with state standards. The projects can be done in both a large and small group setting. The website shows how young students can use science notebooks to write and draw what they are learning.
This kindergarten curriculum website has different subjects (language arts, math, writing, social studies, science) as well as different types of activities for kindergarten students.
StudySync enlists broadcast-quality video, digital media, mobile platforms and social learning to advance reading, writing and critical thinking. As technology gets cheaper and smaller, schools continue to reap the benefits of greater numbers of students having access to it. This app provides fully animated dinosaurs along with scientific data on each one.