The pages linked here are bonus website access to special web links designed for teachers who have purchased materials from TpT.
As a 4th grade teacher, when conducting research with students, my goal was for students to conduct research safely and quickly. With large class sizes, our computer time had to be shared and I wanted to not worry (so much) about what sites a student might land upon when conducting research.
I created special web pages for each of these units for upper elementary teachers and their students to use. My web site link collection is NOT part of the project purchase, it is intended to be used as a courtesy with my materials.