Tasks & Practice 

What is a "rich task"? NRICH gives a great definition and plenty of examples on their site. There are many, MANY benefits for a math classroom when rich tasks are implemented appropriately.

Resources on this page can be used to provide experiences for students with "rich tasks" or "rich contexts".

SFUSD 3-Act Howto page |PreK-12th| - Provides a usable definition of 3-act tasks, why teachers would want to use this strategy,  and some guideposts and typical parts of each stage.

Primer on 3-Act Tasks |PreK-12th| - via MakeMathMoments. "What do you notice, what do you wonder?" Harness curiosity with this engaging lesson format. Simple 2-page graphic document outlining 3-act tasks.

Dan Meyer's Three-Act Math Tasks |6th-12th| - Dan Meyer is credited with creating the term "Three-Act Task." Most tasks in the large library also include sequels. Sorted by standards. Free. Dan is now the director of research at Desmos, which is a fabulous math tool. 

Graham Fletcher's Giant list of K-7 3-Act tasks. |K-7th| - Large library of really engaging 3-act tasks K-7th in simple format. Sorted by standards. Free.

Robert Kaplinsky's list of 3-Act task-style lessons |K-Alg2| - Large library includes student work examples, considerations, and lesson outline/script. Sorted by grade/course. Free.

Dane Ehlert's 3-Act Tasks @ WhenMathHappens |3rd-Calc| - Very simple formatting. Most tasks are standards-aligned. Sorted by grade/course. Free.

Kristen Acosta's 3-Act Tasks - A very pretty set of K-6 3-act tasks sorted by grade and standard. Super simple formatting (the task and nothing but the task). Free.

Ms Castillos 3-Act Tasks |1st-5th|- Includes some discussion of progression. Sorted by grade and standard. Free.

Estimation180 3-Act Tasks by Andrew Stadel |4th-Geo|- Simple formatting. Sorted by grade/course. Free.

Do the Math -- Save a Life Math Tasks |8-12th| - A collection of 6 highly engaging math tasks focused on 9th-grade algebra using real data from the Idaho crash data dashboard from your home town (or towns of choice). Includes presentations and guides that help teachers implement research-based practices during the lessons. Can be taught one-off or in series. Includes an optional capstone project giving recommendations to the Idaho Transportation Department. 

Utah Educators Network Mathematics Core -- Tasks by Standard Strand |K-12th| - Click on a grade level and scroll down to the "links" buttons to get annotated lists of tasks that fit standards or strands. For example, an annotated list for HS.A.REI is available at this link.

Teacher Currated Building Thinking Classrooms Curricular Tasks |8-12th| - A spreadsheet assembled by a BTC Facebook group of teachers. Some resources are well considered and created by teachers (eg, this Solving Linear Equations Unit for 8th grade), while others are links to resources on the web.

Illustrative Mathematics |K-12th| - A free, open education resource (OER) with a focus on problem-based math education and rich tasks. All grade levels include learning goals for students at the top of every lesson and learning targets summarized per unit. The HS content includes some quality modeling prompts with an excellent framework for teachers. See our curriculum page for more thoughts on Illustrative and Open Up as curriculum.

Geogebra Tasks Indexes |K-12th| - Professionally created content by the Geogebra team. Over 300 elementary tasks are sorted into K-2 and 3-5 grades and subjects, over 500 middle school tasks, and over 1700 high school tasks are sorted by course subject.

OpenMiddle |K-12th| - Slides with quality DOK 2 & 3 problems sorted by grade K-8 and domain for HS. Founded by Robert Kaplinski and Nannette Johnson.

WODB Which One Doesn't Belong? |K-12th| - A great set of engaging prompts to help students engage in math talk while considering various math logic concepts deeply.

MakeMathMoments Problem-Based Tasks and Units |3rd-12th| - Problem-based units sorted by subject and based on a framework that expands on the 3-act format based on research including The 5 Practices. The initial problems, discussion prompts, and a part of the guides are free, but the full guides, related problem strings, math talk prompts, worksheets, anticipating, and other unit resources require a subscription (trial available). Units essentially walk teachers through a high-quality, planning and delivery process that is rigorous enough to be considered professional learning, but also practical enough to be sustainable.

Problem-Based Learning Curriculum Maps (PrBL) in Units for every Standard |3rd-Alg2| - Via Geoff Krall's website Emergent Math. Organized into units per standard cluster. Also includes some modeling/extension units. Sources include Fawn Nguyen, MARS, YummyMath, NCTM, Dan Myers, Open Middle, and more. A few older curricular resources require the use of the internet way back machine to access.

Khan Academy Standards Map |K-Stats| - Breaks each Standard into procedural skills and provides online, adaptive math practice for those procedural skills. Khan has adaptive programs aligned to most EngageNY/Eureka courses, IM 6-8, and more standard progressions. Most of Khan academy is DOK 1, though some presses into DOK 2. Includes a fairly extensive teacher dashboard that allows assignments and provides in-depth data similar to many online adaptive math programs. Some free teacher training is available.

www.teachertoolsai |K-12th| - Use AI to generate your own task set. Copy/paste an Idaho Math Standard as the subject, provide some context (ie, make it baseball-related), and add a student's name to personalize the task for your classroom. For example, I pasted HS.A.CED.A.2 Interpret the relationship between two or more quantities.★ and got a pretty good task set.

Fractl |4th-12th| - a large collection of reasonably rich fraction math tasks. Could be used as learning tasks in younger grades and warmups/review tasks in older grades.

Math Fails |K-12th| - Over 500 pictures of mathematics gone wrong. These work great as conversation starters, "notice, wonder" seeds, practice questions, and more! There is a download link at the bottom for all of them so far.

Case Studies for Kids - a couple-dozen real-world modeling tasks targeted for -9 grade students 

List of United States high school mathematics competitions @ Art of problem solving - include competitions and task libraries, such as the International Math Olympiad problem list.