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This video explains how to sketch a square and a rectangle.
- Subject:
- Mathematics
- Material Type:
- Lesson
- Date Added:
- 04/20/2021
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Conditional Remix & Share Permitted
CC BY-NC-SA
This video explains how to create an area division model.
- Subject:
- Mathematics
- Material Type:
- Lesson
- Date Added:
- 04/20/2021
Conditional Remix & Share Permitted
CC BY-NC-SA
This video explains how to create an area division model.
- Subject:
- Mathematics
- Material Type:
- Lesson
- Date Added:
- 04/20/2021
Unrestricted Use
CC BY
Unit 2: Introducing Ratios
Lesson 7: Creating Double Number Line Diagrams
In this lesson, students create double number line diagrams from scratch. They see that it is important to use parallel lines, equally-spaced tick marks, and descriptive labels. They are also introduced to using the word "per" to refer to how much of one quantity there is for every one unit of the other quantity.
Double number lines are included in the first few activity statements to help students find an equivalent ratio involving one item or one unit. In later activities and lessons, students make their own strategic choice of an appropriate representation to support their reasoning (MP5). Regardless of method, students indicate the units that go with the numbers in a ratio, in both verbal statements and diagrams.
Note that students are not expected to use or understand the term "unit rate" in this lesson.
- Subject:
- Mathematics
- Ratios and Proportions
- Material Type:
- Activity/Lab
- Date Added:
- 04/12/2021
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This short video and interactive assessment activity is designed to give fifth graders an overview of comparing decimals.
- Subject:
- Mathematics
- Numbers and Operations
- Material Type:
- Assessment
- Interactive
- Lecture
- Provider:
- CK-12 Foundation
- Provider Set:
- CK-12 Elementary Math
- Date Added:
- 04/03/2018
Conditional Remix & Share Permitted
CC BY-NC-SA
Students will practice counting and identifying less than, greater than, and equal to. This is a supplemental practice activity to use in conjunction with a mathematics curriculum, not the total lesson itself. The game can be played with a teacher as an intervention, between partners during whole group, as a center activity, or sent home to be played with parents/family members. Game board, crocodile mouth pieces and a letter to be used if sent home are attached.
- Subject:
- Mathematics
- Material Type:
- Game
- Date Added:
- 06/16/2021
Only Sharing Permitted
CC BY-NC-ND
In this task, you investigate a number puzzle.
- Subject:
- Mathematics
- Material Type:
- Activity/Lab
- Date Added:
- 05/26/2021
Unrestricted Use
CC BY
Students practice crossing from one family to the next in counting forward with this concentration game.
- Subject:
- Mathematics
- Numbers and Operations
- Material Type:
- Activity/Lab
- Provider:
- Illustrative Mathematics
- Provider Set:
- Illustrative Mathematics
- Author:
- Illustrative Mathematics
- Date Added:
- 05/01/2012
Unrestricted Use
CC BY
This word problem requires students to create expressions to calculate gas milage for a vehicle.
- Subject:
- Functions
- Mathematics
- Material Type:
- Activity/Lab
- Provider:
- Illustrative Mathematics
- Provider Set:
- Illustrative Mathematics
- Author:
- Illustrative Mathematics
- Date Added:
- 05/01/2012
Conditional Remix & Share Permitted
CC BY-NC-SA
In this Cyberchase video segment, Shari Spotter gets help from the CyberSquad in doubling a recipe for crumpets.
- Subject:
- Mathematics
- Material Type:
- Lecture
- Author:
- U.S. Department of Education
- WNET
- Lynn Raith
- Date Added:
- 08/04/2020
Unrestricted Use
CC BY
This Nrich interactive environment can be used with students, perhaps on an interactive whiteboard, for many different purposes. These might include, for example, exploring ideas associated with factors and multiples, or addition and subtraction. It is also an ideal context in which to investigate fractions and ratio, or to look at finding combinations.
- Subject:
- Mathematics
- Material Type:
- Activity/Lab
- Interactive
- Date Added:
- 06/17/2021
Unrestricted Use
CC BY
One common mistake students make when dividing fractions using visuals is the confusion between remainder and the fractional part of a mixed number answer.
- Subject:
- Mathematics
- Material Type:
- Activity/Lab
- Provider:
- Illustrative Mathematics
- Provider Set:
- Illustrative Mathematics
- Author:
- Illustrative Mathematics
- Date Added:
- 05/01/2012
Unrestricted Use
CC BY
This Nrich problem is intentionally difficult as it stands, but this allows us to focus on promoting resilience and perseverance with children.
- Subject:
- Mathematics
- Material Type:
- Activity/Lab
- Date Added:
- 06/18/2021
Unrestricted Use
CC BY
This task requires students to computer currency exchanges.
- Subject:
- Mathematics
- Material Type:
- Activity/Lab
- Provider:
- Illustrative Mathematics
- Provider Set:
- Illustrative Mathematics
- Author:
- Illustrative Mathematics
- Date Added:
- 05/01/2012
Conditional Remix & Share Permitted
CC BY-NC
The purpose of this curriculum guide is to provide OER lesson material and support activities for Pythagorean Theorem instruction. It is geared towards GED® requirements. Both printable and online options are provided.
- Subject:
- Mathematics
- Material Type:
- Activity/Lab
- Assessment
- Lesson
- Reading
- Teaching/Learning Strategy
- Author:
- Shana Friend
- Date Added:
- 08/07/2020
Conditional Remix & Share Permitted
CC BY-SA
The purpose of this curriculum guide is to provide OER lesson material and support activities for Pythagorean Theorem instruction. It is geared towards GED® requirements. Both printable and online options are provided.
- Subject:
- Mathematics
- Material Type:
- Activity/Lab
- Assessment
- Lesson
- Reading
- Teaching/Learning Strategy
- Author:
- Shana Friend
- Date Added:
- 08/04/2020
Conditional Remix & Share Permitted
CC BY-NC-SA
This short video and interactive assessment activity is designed to teach third graders an overview of capacity (english units).
- Subject:
- Mathematics
- Measurement and Data
- Material Type:
- Assessment
- Interactive
- Lecture
- Provider:
- CK-12 Foundation
- Provider Set:
- CK-12 Elementary Math
- Date Added:
- 04/03/2018
Unrestricted Use
CC BY
The purpose of this task is to introduce or reinforce the concept of a function, especially in a context where the function is not given by an explicit algebraic representation. Further, the last part of the task emphasizes the significance of one variable being a function of another variable in an immediately relevant real-life context.
- Subject:
- Functions
- Mathematics
- Material Type:
- Activity/Lab
- Provider:
- Illustrative Mathematics
- Provider Set:
- Illustrative Mathematics
- Author:
- Illustrative Mathematics
- Date Added:
- 05/01/2012
Conditional Remix & Share Permitted
CC BY-SA
In this engineering, math, and sustainability project students answer the question, “Can I ride 53 miles on a bike from the energy of a single burrito?” They must define their variables, collect and analyze their data, and present their results. By the end of this project, developed by Allen Distinguished Educator Mike Wierusz, students should have all the information they need to design a burrito that would provide them with the exact caloric content necessary to ride 53 miles.
- Subject:
- Applied Science
- Engineering
- Environmental Science
- Mathematics
- Physical Science
- Physics
- Material Type:
- Activity/Lab
- Lesson Plan
- Author:
- Allen Distinguished Educators
- Mike Wierusz
- Date Added:
- 08/04/2020
Unrestricted Use
CC BY
This task requires students to work with unit rates.
- Subject:
- Mathematics
- Material Type:
- Activity/Lab
- Provider:
- Illustrative Mathematics
- Provider Set:
- Illustrative Mathematics
- Author:
- Illustrative Mathematics
- Date Added:
- 05/01/2012