An interactive applet and associated web page that provide step-by-step instructions on how to find the center of a circle using any right-angled object, such as a piece of paper. The method uses Thales Theorem to draw two diameters, which intersect at the circle center. The animation can be run either continuously like a video, or single stepped to allow classroom discussion and thought between steps. 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.

An interactive applet and associated web page that provide step-by-step instructions on how to find the center of a circle using only a compass and straightedge. The method used involves constructing the perpendicular bisectors of two random chords. The bisectors intersect at the center of the circle. The animation can be run either continuously like a video, or single stepped to allow classroom discussion and thought between steps. 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.

An interactive applet and associated web page that provide step-by-step instructions on how to find the foci of a given ellipse using a compass. The animation can be run either continuously like a video, or single stepped to allow classroom discussion and thought between steps. 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.

This task helps students solidify their understanding of linear functions and push them to be more fluent in their reasoning about slope and y-intercepts. This task has also produced a reasonable starting place for discussing point-slope form of a linear equation.

This task "Uses facts about supplementary, complementary, vertical, and adjacent angles in a multi-step problem to write and solve simple equations for an unknown angle in a figure (7.G.5)" except that it requires students to know, in addition, something about parallel lines, which students will not see until 8th grade.

This task asks students to solve addition and subtraction equations with different structures so that they are able to see the connections between addition and subtraction more easily.

This short video and interactive assessment activity is designed to teach fourth graders about determining rate.

A game where players search images to find hidden items related to space.

Allow students to express their own style with the classics.
You can find the originals and view/discuss them and learn about the artist. Then students can create their own interpretation of the famous piece of art.

We touch things every day: a coffee cup, a car door, a computer keyboard. Each time we do, it is likely that we leave behind our unique signature—in our fingerprints.
No two people have exactly the same fingerprints. Even identical twins, with identical DNA, have different fingerprints. This uniqueness allows fingerprints to be used in all sorts of ways, including for background checks, biometric security, mass disaster identification, and of course, in criminal situations.

Fingerprint analysis has been used to identify suspects and solve crimes for more than 100 years, and it remains an extremely valuable tool for law enforcement. One of the most important uses for fingerprints is to help investigators link one crime scene to another involving the same person. Fingerprint identification also helps investigators to track a criminal’s record, their previous arrests and convictions, to aid in sentencing, probation, parole and pardoning decisions.

Each person in the world has a set of fingerprints unique to them! Even though every print is different, they can be categorized into one of three general types:
-loops (found in 65% of the population)
-whorls (found in 35% of the population)
-arches (found in 5% of the population)

Analyzing fingerprints can be a tricky business, especially without computers to help. After categorizing a print as a loop, whorl, or arch, look for these individual features:
-core: in a loop fingerprint, this is the center of the loop. 
-delta: in loop and whorl patterns, this is an area where ridges meet from three directions. (There is usually one delta on a loop and two or more on a whorl.
-ridge end: notice where individual ridges come to an end. 
-bifurcation: notice where a ridge divides into two ridges (like a fork in a road)
-island: notice any short ridges cut off from others. 
-crossover: notice where any ridges appear to cross over each other.

Try your hand at fingerprint analysis! Two different fingerprints have been found at a crime scene. Compare them to the fingerprints of the 4 suspects on this website.

Encourage fire safety with your students with this resource package from Sask Public Safety.

*When you click "view resource" the package will download automatically. Please check your downloads folder for the package.

October is Fire Prevention Month. Learn more about fire safety in the workplace.

A fire fighter is an emergency safety professional who responds to fire scenes to extinguish fires and assist fire victims. Many fire fighters are certified first responders, meaning they can assist victims by providing CPR (cardiopulmonary resuscitation) and other basic life saving techniques. This course provides students with an introduction in the history of fire fighting, basic firefighting skills, personnel rules and regulations, professional organizations and standards, elementary fire behavior, fire control techniques, firefighting tactics and strategy, fire ground safety and operations, apparatus and equipment operation and maintenance, fire investigation, report writing, wild land training, and physical fitness.

In this task students are asked to write an equation to solve a real-world problem. There are two natural approaches to this task. In the first approach, students have to notice that even though there is one variable, namely the number of firefighters, it is used in two different places. In the other approach, students can find the total cost per firefighter and then write the equation.

This resource will provide you with information if you are already doing Personalized Learning, or all you need to get started with Personalized Learning in your classroom.
It provides 5 clear strategies to apply each week. It provides an excellent instructional model and a wealth of resources.

Helping children learn to be smart about feelings can help alleviate their emotional stress, improve concentration, boost their immune system, and enhance brain development. This First Aid for Feelings workbook for children was designed to help do that. By using the simple coping strategies found in this workbook, you can encourage children to express thoughts, questions, and feelings. These life skills may help reduce and manage children’s stress or anxiety, and provide some sense of control within their changing lives.