## Resources for

**Some good sources of elementary school math tasks (in no particular order):**

Bookshelf of Virtual Manipulatives

Bookshelf of Virtual Manipulatives

**Problem-Based Lesson Search Engine**- Searches many of the sites listed below

101 Questions - Given an image, what is the first question that comes to mind?

Estimation 180 - Ideas to foster number sense

Fraction Talks - Number talk prompts related to fractions

GFletchy's 3-Act Lessons - Short videos to encourage question posing by students

Splat! - Visual representations to build number sense, estimation, and algebraic thinking

Numberless Word Problems - To get kids thinking about the situation rather than the computation

When Math Happens 3 Act Math - Short videos to encourage question posing by students

Open Middle - Challenging math problems worth solving

Nrich: British website of rich tasks

Math Pickle - Math games and puzzles organized by grade or subject

YouCubed Tasks: Open-ended, low floor/high ceiling tasks organized by grade and concept

NCTM's Illuminations: Lessons and interactives sortable by concept or grade level

Inside Mathematics: Lesson tasks, performance assessments, problems of the month

Illustrative Math: Tasks aligned to CCSSM standards.

Which One Doesn't Belong - Collections of four items (of mathematical nature). An argument for selecting any one of the four items can be made.

National Library of Virtual Manipulatives

Math Learning Center - Free virtual manipulatives for iPad, Chromebook, or web-based for computer or smartboard

GeoGebra Shape Makers - Students can derive the definitions of quadrilaterals through exploration of these shape makers.

Howard County Public Schools - Routines, lesson seeds, videos... Organized by grade/course

Virtual Math Resources - Google slides to use in online instruction

Would you rather? - Math conversation starters

Math Plus - Mental math exercises and discussion prompts

**Children's Books:**

Which One Doesn't Belong

**Professional Resources:**

The Common Core Mathematics Companion: The Standards Decoded

Putting the Practices into Action book and online resources