This is usually my go-to website for guided math (math workshop) ideas. Tabitha and Chloe are active bloggers who have a wealth of good ideas that a teacher in any grade can modify.
How can you answer the perennial math question: "Am I ever going to use this in real life?" PBS's "Get the Math" website is a great way to show students how math is used in areas like music, fashion, and video game design. Thanks to Emily B. for sharing this one!