Math=Love, Sarah used the MTBoS idea from @saravdwerf to make a Welcome sign that I am definitely stealing. And so did @MathByTori. Check out Tori's classroom decorations here.
2. I really like this projectile motion poster from @ScaffoldedMath that can be found here.
3. I got the text box idea in a google doc from @MrsETeachesMath, blogged here, and I can't wait to try it. See her video below:
4. At Radical4math, see how Christie uses Explain Everything with 3 Act Math Tasks...this is a mash-up of two of my favorite things, which I've blogged about here and here.
5. And lastly, I am definitely going to try @TheAnswerPad from @AmyRoediger, which she blogged about here and I can't believe I haven't heard of yet! It looks great for formative assessment and for capturing student work...and it looks like you can easily broadcast student work to the entire class.