Students will work in groups to create a Keva Plank bridge that spans an 8.5 inch “river” (sheet of paper). The bridge needs to span the river (touch in the middle) and can have no blocks touching any water. Students will record data on how many blocks they plan to use + how many they actually use in their attempts, as well as the most and least used in the class. Students will also reflect on group designs as well as how to improve their own work.

This unit of instruction is focused on the introduction of a precise definition of functions as students transition to the more formalized study of algebra. This task asks students to analyze graphs of functions and interpret rates of change, intersections, and points on the curves of different functions.

In this activity, students determine their own eyesight and calculate what a good average eyesight value for the class would be. Students learn about technologies to enhance eyesight and how engineers play an important role in the development of these technologies.

This problem helps students to practice adding three numbers whose sum are 20 or less. It is an open-ended problem with many solutions.

21Things4Students is an online resource to help students improve their technology proficiency as they prepare for success in the real world. Teachers value 21Things4Students because it's experiential, relevant, applicable and adaptable. Students say they love this class!

Students use numeral cards and mathematical symbol cards to practice simple addition and subtraction, work with number sentences, and develop systematic work habits. Students are challenged to find as many ways as possible to arrange some or all seven cards to create true statements.

This short video and interactive assessment activity is designed to give fourth graders an overview of 24-hour clocks.

This short video and interactive assessment activity is designed to give fifth graders an overview of 24-hour clocks.

 As students are reviewing odd and even numbers, students first sketch out a bug that has odd or even features. Students then use Google Drawing to turn their sketch into a work of art that they label to describe even and odd features.

 As students are reviewing odd and even numbers, students first sketch out a bug that has odd or even features. Students then use Tinkercad to turn their sketch into a 3D design to be printed.

 As students are reviewing odd and even numbers, students first sketch out a bug that has odd or even features. Students then use Google Drawing to turn their sketch into a work of art that they label to describe even and odd features.

 As students are reviewing odd and even numbers, students first sketch out an insect that has odd and even features. Students then use Google Drawing to turn their sketch into a work of art that they label to describe even and odd features.

In this unit students will build upon their experiences with geometry in earlier grades. Seventh grade students use these skills to informally construct geometric figures.

Manipulatives, dynamic geometry, and tools like rulers and protractors will be particularly helpful with this unit. A particular focus in this unit is the construction of triangles when given combinations of measures of three angles and/or sides. Students will investigate which of these combinations create unique triangles, more than one triangle, or no triangle at all. Students will use the angle-angle criterion to determine similarity.

Angle relationships generated by intersecting lines including supplementary, complementary, adjacent, and vertical angles are also used in problem solving. Using these relationships, students will make conjectures and solve multistep problems with angles created by parallel lines cut by a transversal. They will also examine both angle sums of polygons and exterior angles.

Students will know and use formulas for the area and circumference of a circle and be able to determine the relationship between them.

This lesson unit is intended to help teachers assess how well students are able to visualize two-dimensional cross-sections of representations of three-dimensional objects. In particular, the lesson will help you identify and help students who have difficulties recognizing and drawing two-dimensional cross-sections at different points along a plane of a representation of a three-dimensional object.

In this activity, students will click and drag to match 2D shapes with their attributes.

Use the eraser tool to find the hidden addition or subtraction questions.  Solve

In this Khan Academy interactive, students will compose and decompose numbers as collection of tens and some ones.