This task is from Tools4NCTeachers. Students explore a task in which they spend $1,000 on classroom furniture. Students use addition and subtraction to keep track of how much money has been spent and how much money they have left. This is remixable.
This task is from Tools4NCTeachers. Students explore a task where they play a game related to two-digit subtraction. This is remixable.
This task is from Tools4NCTeachers. Students consider different ways to spend $1,000 at a toy store and use addition and subtraction to keep track of how much money they have spent and have left. This is remixable.
This resource is from Tools4NCTeachers. The presentation provides background information for teachers about various addition and subtraction strategies for Grade 3. This is remixable.
This resource has been enhanced by including links to math resources based in technology and interaction between students.
This resource is from Tools4NCTeachers. The presentation provides background information for teachers about various addition and subtraction strategies for Grade 3. This is remixable.
This video demonstrates the functions of the TI-15 calculator. It may be used as a professional development for teachers, or for training students. It is not recommended that the video is shown to students in its entirety. If you scroll down to the comments section under the video, time markers for each function are provided. Click on the time markers to go directly to that specific function.
An interactive applet and associated web page that introduce the concept of a triangle. The applet shows a triangle where the user can drag the vertices to reshape it. As it is being dragged a base and altitude are shown continuously changing. Demonstrates that the altitude may require the base to be extended. The text on the page lists the properties of a triangle and lists the various triangle types, with links to a definition of each. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.
In this lesson plan students practice column addition and lining up decimal points in the context of money while they watch a video segment. Assessments provide more practice adding numbers in columns, and students troubleshoot an error in misaligned decimal addition.