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: The 20 students in Mr. Wolf's 4th grade class are playing a game in a hallway that is lined with 20 lockers in a row. The first student starts with the...

This parent guide supports parents in helping their child at home with the 4th grade Math content.

This resource accompanies our Rethink 4th Grade Math course. It includes ideas for use, ways to support exceptional children, ways to extend learning, digital resources and tools, tips for supporting English Language Learners and students with visual and hearing impairments. There are also ideas for offline learning. 

Students are introduced to the classification of animals and animal interactions. Students also learn why engineers need to know about animals and how they use that knowledge to design technologies that help other animals and/or humans. This lesson is part of a series of six lessons in which students use their growing understanding of various environments and the engineering design process, to design and create their own model biodome ecosystems.

Students draw diagrams to develop conceptual understanding of multiplication. Precise, mathematical vocabluary is encouraged through discussion of students' representations of the story problems. This lesson includes a high-interest article as well.

This short video and interactive assessment activity is designed to teach third graders about choosing the multiples of a given number up to 12.

This document provides sample performance tasks/assessment items for Common Core State Standards Grade 4 Math provided by the Louisiana Department of Eduation. Both questions and exemplary responses are included.

For this task students will use their understanding of multiplicative and additive reasoning to analyze another's reasoning. Students will consider growth relative to the original size of a snake. The second scenario provided accentuates the concept of relative growth and will provide for clarifying discussions in th classroom.

Students will explore and review prime and composite numbers. Students will also build a factor tree model by displaying how to write out a prime factorization of a number correctly, how to identify prime and composite numbers, and how to check their results. This hands-on approach allows students to use different mediums and practice their understanding of mathematics.

Simple machines are devices with few or no moving parts that make work easier, and which people have used to provide mechanical advantage for thousands of years. Students learn about the wedge, wheel and axle, lever, inclined plane, screw and pulley in the context of the construction of a pyramid, gaining insights into tools that have been used since ancient times and are still important today. Through numerous hands-on activities, students imagine themselves as ancient engineers building a pyramid. Student teams evaluate and select a construction site, design a pyramid, perform materials calculations, test a variety of cutting wedges on different materials, design a small-scale cart/lever transport system to convey building materials, experiment with the angle of inclination and pull force on an inclined plane, see how a pulley can change the direction of force, and learn the differences between fixed, movable and combined pulleys. While learning the steps of the engineering design process, students practice teamwork, creativity and problem solving.

Students explore multiples using snap cubes and hundreds boards and explain patterns discovered on each hundreds board.

In this lesson students explore different repeating patterns in music to predict when two or more events will occur at the same time. They are encouraged to create patterns and draw conclusions. In doing so they learn to predict the least common factor of up to three numbers.

This is a hands-on lesson that engages students in the discovery of prime numbers through the construction of multiplication arrays. Students then extend on their background knowledge of multiples and their new understanding of prime and composite numbers to complete an Eratosthenes’ Sieve.

In this interactive game, students help puppies to get the correct factor bone by directing them by changing the arrows to alter that paths. Students practice locating factors and multiples of whole numbers.

In this interactive game, students help Factor Dogs to finish their disappearing act at the circus by moving them to match a number they are a factor of before they go offscreen. Students practice quickly locating factors and multiples.

In this interactive, students play a game like Pac-Man to find factors of a given number.

Students can compete against each other to find the factors of a number. The more factors you find, the more points you receive!

In this lesson, students will understand the concept of a factor. Students will determine the factors that belong to a whole number.