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This website has a sequence of construction challenges that are done in an online platform using only two tools, constructing a circle and drawing (or extending) a line segment. This could be an excellent supplemental or homework resource. The challenges are addictive and quickly lead to fluency with constructions.

A list of Three Act math tasks, curated by Dan Meyer. These are rich mathematics tasks that start with a picture or video that lends itself well to students asking their own mathematical questions. They are aligned to a variety of different Common Core Standards.

This is designated as a problem for systems of equations in algebra I, but can be used in Unit 0 for pretty much any course... I used it in my College Math classes and in my Calculus classes. I developed an activity and worksheet that focuses on problem solving processes rather than obtaining the correct answer. First students have to look at the picture and they can't use a pen or pencil but have 1 minute to think "what is this problem asking me?" (NOTE: Answers can vary) Then, they will develop a plan to solve it, share that with a neighbor (still no writing), and then they can solve it. Later on, there is space for them to explain their process. Then, facilitate a discussion about the different methods that can be used, and the efficiency of solving it in a certain way, etc. The math practices can be driven home through this (especially MP 1)!!!!