This assessment may be used in a small group or whole group setting, give each student a piece of paper. Students who have trouble writing certain numbers can then get targeted practice.

Modeling traffic data is important for urban planning, creating transportation systems, and even predicting how much foot traffic a retail store can expect in a given day. This genre of dynamic data science activities could be classified as “finding a needle in a haystack,” giving students a chance to mine big data to make insights about traffic use.

According to the Bay Area Rapid Transit District, about 400,000 people used the BART system daily in 2018. In BARTy, students investigate BART data from 2015 to learn about passenger use and explore traffic patterns. The Teacher Guide includes a game-like investigation to locate a “mystery meeting,” and suggests ways to help students figure out peak passenger use, popular stations, and the impact of events in San Francisco on BART usage.

The purpose of this task is for students to find different pairs of numbers that sum to 4.

This task suggests methods of introducing and continuing choral counting in the classroom.

The purpose of this task is for students to find different pairs of numbers that sum to 7.

This task gives students another way to practice counting and gain fluency with connecting a written number with the act of counting. This task should be introduced by the teacher and would then be a good independent center.

This task supports students in correctly writing numbers. Because students have to trace the number, instead of coloring in a bubble with the number in it or circling the correct number, they gain handwriting practice as well as counting and addition practice.

Math in Real Life (MiRL) supports the expansion of regional networks to create an environment of innovation in math teaching and learning.  The focus on applied mathematics supports the natural interconnectedness of math to other disciplines while infusing relevance for students.  MiRL supports a limited number of networked math learning communities that focus on developing and testing applied problems in mathematics.  The networks help math teachers refine innovative teaching strategies with the guidance of regional partners and the Oregon Department of Education.

In this dynamic data science game, students try to track down a speck of extremely dangerous radioactive material (the "source"), which has been lost somewhere in the middle of their lab. A special device measures the strength of the radiation and, if it’s positioned correctly over the speck, can be used to collect it for safe disposal. But it's a tiny speck, so they have to give quite precise coordinates. They take measurements to figure out the speck’s location, but must beware: as they take measurements, they're also accumulating radiation exposure. If they get too much, they’ll lose the game and will have to start over. Can they find the source before it’s too late? Using mathematical models, students generate useful strategies for winning the game with data.

This task aims to give students practice counting and recording the given number on quantities up to 20.

This marbel counting iteration of greater than, less than, and equal to with a specific "target number" help strengthen the concept for students.

This is a lesson familiarizing students with right triangle trigonometry with applied problem solving.

This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important asects of the task and its potential use. Here are the first few lines of the commentary for this task: #### Materials * 10-15 quart plastic bags of various counters (different numbers of counters in each bag) * A recording sheet for the activity with pic...

This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important asects of the task and its potential use. Here are the first few lines of the commentary for this task: Material * Assorted objects to create the groups * Clear ziplock bags or small cups * Index cards and stickers * An egg timer or a kitchen timer Action...

This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important asects of the task and its potential use. Here are the first few lines of the commentary for this task: Adding two numbers to make an equation. #### Materials * One pair of dice per student * A recording sheet for the activity. For example: #### Action Th...

This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important asects of the task and its potential use. Here are the first few lines of the commentary for this task: Materials * Class white board and one marker * Paper and pencil for students * Materials such as counters or linker cubes * Number lines that go from 0...

This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important asects of the task and its potential use. Here are the first few lines of the commentary for this task: Materials * Double sided counters * Markers that are the same colors as the counters * Teacher-made “My Book of 5” (see below for detailed directions) ...

This task includes problem types that represent the Compare contexts for addition and subtraction (see Table 1 in the glossary of the CCSSM for all all addition and subtraction problem types). There are three types of comparison problems – those with an unknown difference and two known numbers; those with a known difference and a bigger unknown number; and those with a known difference and smaller unknown number. Each of these problem types can be solved using addition or subtraction, although the language in specific problems tends to favor one approach over another.

Lamprey were an important food source for many Native American tribes in Oregon, particularly those in coastal areas and along the Columbia River watershed, and they continue to be an important link to traditional cultural practices. Like salmon, lamprey are anadromous, meaning they are born in fresh water, spend most of their life in the ocean, and return to freshwater to spawn. Sustaining the population of lamprey has always been important to Native people, and one way to do that is by not overharvesting. In previous generations this was not a problem, but hydroelectric dams, pollution, and destruction of habitat have all led to a drastic reduction in the lamprey population over the past century. Today, tribal biologists use both traditional and Western scientific methods—such as fish tagging—to protect and preserve lamprey, salmon, and other aquatic species. Using this real-world context, this lesson engages students in a mathematical process to determine the weights of lamprey using a fraction with each fraction having the same denominator, organizing the lamprey on a number line from lowest to highest weight, and comparing the weights of lamprey in decimal format.