Would You Rather? presents a picture with a mathematics problem (most have a financial aspect to themthat asks "would you rather?" This framework is great for middle schoolers because...
1) It’s relatable. It asks students to choose a path, and justify their choice.
2) It allows for rapid estimation. Students will immediately have a conjecture.
3) CCSS Standard of Math Practice 3: Construct viable arguments and critique the arguments of others - "Mathematically proficient students are also able to compare the effectiveness of two plausible arguments, distinguish correct logic or reasoning from that which is flawed, and—if there is a flaw in an argument—explain what it is."
Since it is a blog site, you can follow the blog by signing up with your email, so that you can receive updates of new postings.