This is an introductory activity / lesson for a larger investigation into the properties of air. Students build a equal arm balance from simple materials to demonstrate that air has mass.

Students are given a biomedical engineering challenge, which they solve while following the steps of the engineering design process. In a design lab environment, student groups design, create and test prototype devices that help people using crutches carry things, such as books and school supplies. The assistive devices must meet a list of constraints, including a device weight limit and minimum load capacity. Students use various hand and power tools to fabricate the devices. They test the practicality of their designs by loading them with objects and then using the modified crutches in the school hallways and classrooms.

Students will be able to identify polygons or shapes in the world around them and use those polygons to build origamis. Students will reinforce their understanding and play a geometric computer game when they have finished.

The area model can be used when multiplying any two numbers, including decimals. This video demonstrates how to multiply using the area model when a decimal is involved.

Given an assortment of unknown metals to identify, student pairs consider what unique intrinsic (aka intensive) metal properties (such as density, viscosity, boiling or melting point) could be tested. For the provided activity materials (copper, aluminum, zinc, iron or brass), density is the only property that can be measured so groups experimentally determine the density of the "mystery" metal objects. They devise an experimental procedure to measure mass and volume in order to calculate density. They calculate average density of all the pieces (also via the graphing method if computer tools area available). Then students analyze their own data compared to class data and perform error analysis. Through this inquiry-based activity, students design their own experiments, thus experiencing scientific investigation and experimentation first hand. A provided PowerPoint(TM) file and information sheet helps to introduce the five metals, including information on their history, properties and uses.

This resource is from Tools4NCTeachers.  In this lesson, students explore 3D shapes, such as rectangular prisms and cubes. The students will identify the attributes for each 3D shape and build shapes using sticks, marshmallows, and other materials.  Pictures of sample student work and printable recording sheets are provided within this lesson.

This resource is from Tools4NCTeachers.In this lesson, students explore attributes of polygons in order to create 2D shapes using given attributes.  Students need some basic background knowledge of the attributes of polygons, including angles, sides, vertices, and right angles.  Remix this lesson to include sample student work... Sharing is caring :)

This resource is part of Tools4NCTeachers.

In this lesson, students explore the communitive property in the context of a word problem to determine if students have the same number of items

This resource is from Tools4NCTeachers.In this lesson, students explore the communitive property in the context of a word problem to determine if students have the same number of items.  This file includes the lesson plan, student recording sheets, and extension materials/activities.

This resource is from Tools4NCTeachers.In this lesson, students explore the associative properties as they solve word problems with three addends to develop the concept of representing and solving problems involving addition.  This lesson format may be used with any problem type appropriate for the grade.  This file includes the lesson, student work samples, student recording sheets, and exit tickets.  Remix this lesson to add extension ideas or addtional student work samples. 

This resource is from Tools4NCTeachers.  In this lesson students will sort polygons, paying attention to their attributes.  They will use geometric vocabulary and identify their sorting rules. Sorting cards, activity sheets, and sample student solutions are included within this lesson.