I use these along with our Magic Tree House Perfect Time for Pandas unit but they can easily stand alone.
The set has 24 question cards, 24 QR research cards, 24 QR answer cards, 1 recording sheet, and an answer key. The QR research codes in this set, do NOT give the answers straight out. Students will need to read the information to locate the answers. Many of the websites include adorable photos and videos you kids will love! I love that not only do my students locate all of the answers but they learn so much more. I hang a poster page and let the kids list other facts they learn that are not on the cards. The QR answer cards will give the students the answer with no web links.
QR codes can be read with any smart device and a QR code reader app. We use ipads and android tablets.
I have also included a list of useful websites.