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This article includes the URL and description of 100 free web tools that can be used by all teachers. The tools are categorized into search engines, math and science, games, templates and lesson plans, and more.

Subject:
Education
Material Type:
Provider:
Ohio State University College of Education and Human Ecology
Provider Set:
Beyond Penguins and Polar Bears: An Online Magazine for K-5 Teachers
Author:
John Costilla
10/17/2014
Only Sharing Permitted
CC BY-NC-ND
Rating
0.0 stars

Rubric Element 1.10 Teachers implement routines and procedures for efficiently guiding students through digital and non-digital work time.

Subject:
Education
Material Type:
Primary Source
Author:
Beth Kabes
07/23/2018
Rating
5.0 stars

An interactive applet and associated web page that demonstrate the properties of a 30-60-90 triangle. The applet shows a right triangle that can be resized by dragging any vertex. As it is dragged, the remaining vertices change so that the triangle's angles remain 30 degrees, 60 degrees and 90 degrees The text on the page points out that the sides of a 30-60-90 triangle are always in the ratio of 1 : 2 : root 3 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.

Subject:
Geometry
Material Type:
Simulation
Provider:
Math Open Reference
Author:
John Page
02/16/2011
Rating
5.0 stars

An interactive applet and associated web page that demonstrate the properties of a 3:4:5 triangle - one of the Pythagorean triples. The applet shows a right triangle that can be resized by dragging any vertex. As it is dragged, the remaining vertices change so that the triangle's side remain in the ration 3:4:5. The text on the page has an example of how the triangle can be used to measure a right angle on even large objects. 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.

Subject:
Geometry
Material Type:
Simulation
Provider:
Math Open Reference
Author:
John Page
02/16/2011
Rating
3.0 stars

An interactive applet and associated web page that demonstrate the properties of a 45-45-90 isosceles right triangle. The applet shows a right triangle that can be resized by dragging any vertex. As it is dragged, the remaining vertices change so that the triangle's angles remain 45 degrees, 45 degrees and 90 degrees The text on the page points out that the sides of a 45-45-90 triangle are always in the ratio of 1 : 2 : root 2 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.

Subject:
Geometry
Material Type:
Simulation
Provider:
Math Open Reference
Author:
John Page
02/16/2011
Conditional Remix & Share Permitted
CC BY-NC-SA
Rating
0.0 stars

This resource includes a flawed reasoning task that reflects 5.NF.5. Students must find the flaw in an argument and present it correctly. Then, they should provide a reasoning behind their thinking.

Subject:
Education
Mathematics
Material Type:
Assessment
Homework/Assignment
Author:
Michele Lerner
Whitney Plunkett
09/14/2018
Conditional Remix & Share Permitted
CC BY-NC-SA
Rating
0.0 stars

This OER explores the basic organization of the Pythagorean Solids. It contains both an activity as well as resources for further exploration. It is a product of the OU Academy of the Lynx, developed in conjunction with the Galileo's World Exhibition at the University of Oklahoma.

Subject:
Arts and Humanities
History
Mathematics
Material Type:
Activity/Lab
Diagram/Illustration
Homework/Assignment
Lecture Notes
Primary Source
Student Guide
Author:
Brent Purkaple
Kerry Magruder
01/28/2016
Conditional Remix & Share Permitted
CC BY-NC-SA
Rating
0.0 stars

This resource includes two multi-step tasks where students connect diagrams and equations in order to solve real world problems. This task includes skills learned in the common core standard 5.NF.2

Subject:
Mathematics
Material Type:
Activity/Lab
Author:
Whitney Plunkett
09/24/2018
Conditional Remix & Share Permitted
CC BY-NC
Rating
5.0 stars

It is important to learn math because it makes us better people.

Subject:
Mathematics
Material Type:
Full Course
Author:
Ninglu Wang
Jessamine Bartley-Matthews
04/09/2016
Only Sharing Permitted
CC BY-NC-ND
Rating
0.0 stars

Along with the Pre-K Lesson using the 7 Step Directions tool for Math is the example of the Hand Signals tools used in the First Grade Speedy Feedback Lesson.

Subject:
Education
Material Type:
Lesson
Author:
Elizabeth Privitera
06/06/2019
Rating
0.0 stars

An interactive applet and associated web page that shows that angle-angle-angle (AAA) is not enough to prove congruence. The applet shows two triangles, one of which can be dragged to resize it, showing that although they have the same angles they are not the same size and thus not congruent. The web page describes all this and has links to other related pages. 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.

Subject:
Geometry
Material Type:
Simulation
Provider:
Math Open Reference
Author:
John Page
02/16/2011
Rating
4.0 stars

An interactive applet and associated web page showing how the AAA similarity test works. Two similar triangles are shown that can be resized by dragging. The other triangle adjusts to remain similar and the angle-angle-angle elements are highlighted to show how they are involved in this test of similarity. (all three interior angles congruent). The web page describes all this and has links to other related pages. 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 reference book project at http://www.mathopenref.com.

Subject:
Geometry
Material Type:
Simulation
Provider:
Math Open Reference
Author:
John Page
02/16/2011
Rating
3.66666666667 stars

An interactive applet and associated web page that shows how triangles that have two angles and a non-included side the same must be congruent. The applet shows two triangles, one of which can be reshaped by dragging any vertex. The other changes to remain congruent to it and the two angles and non-included side are outlined in bold to show they are the same measure and are the elements being used to prove congruence. The web page describes all this and has links to other related pages. 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.

Subject:
Geometry
Material Type:
Simulation
Provider:
Math Open Reference
Author:
John Page
02/16/2011
Restricted Use
Rating
0.0 stars

El projecte d'Avaluació Continuada i Millora de l'Ensenyament (ACME), de l'Escola Politècnica Superior de la Universitat de Girona, permet la correcció totalment automàtica d'una gran varietat d'exercicis no trivials parametritzats.

Material Type:
Assessment
Interactive
Provider:
CIRAX
Provider Set:
Fonaments de matemàtiques
Author:
Jordi Poch García
Josep Soler Masó
UdG, Universitat de Girona
06/26/2013
Conditional Remix & Share Permitted
CC BY-NC-SA
Rating
4.0 stars

A+ Click is an interactive collection of more than 3700 math problems and answers for K-1 K-12 school program. It defines the personal level of math knowledge. You move up into the next level if you give 5 correct answers in a row. Practice makes perfect.

Subject:
Mathematics
Algebra
Geometry
Material Type:
Activity/Lab
Assessment
Game
Lecture Notes
Provider:
NSDL Staff
Provider Set:
Mathematics Gateways and Resources
Author:
Igor Kokcharov