Here is a review I made that uses QR codes per section/skill that links to websites that help with that particular skill. The last QR code is a PDF of the answers for the review. Let me know if you want to collaborate on usage of QR codes or have tips for me in using them in my classroom. CC Aligned: 6.NS.C.5, 6.NS.C.6
Integers Unit Review with QR Codes
Understand that positive and negative numbers are used together to describe quantities having opposite directions or values (e.g., temperature above/below zero, elevation above/below sea level, credits/debits, positive/negative electric charge); use positive and negative numbers to represent quantities in real-world contexts, explaining the meaning of 0 in each situation.