Use the controls to explore this fragment of a much longer DNA strand. Can you find the four different base pairs that DNA is constructed from?

As a class, students work through an example showing how DNA provides the "recipe" for making our body proteins. They see how the pattern of nucleotide bases (adenine, thymine, guanine, cytosine) forms the double helix ladder shape of DNA, and serves as the code for the steps required to make genes. They also learn some ways that engineers and scientists are applying their understanding of DNA in our world.

In Lesson 1, students learn about what DNA is and several different DNA typing techniques. In Lesson 2, students examine three different situations where DNA typing was used to carry out justice. Students also identify and evaluate different uses of DNA typing techniques and its possible benefits and misuses.

In this activity, students learn about the collection and processing of DNA evidence and use DNA profiling to solve a crime. The activity is designed for use on an interactive whiteboard with the whole class, and it can also be used individually or in small groups at a computer or with a data projector and laptop.

By the end of this activity, students should be able to:

describe where DNA is found in the body and how DNA may be ‘left behind’ at a crime scene
describe the basic structure of DNA
explain the process of DNA profiling

Explore how the code embedded in DNA is translated into a protein. Click Transcribe to zoom into the cell nucleus and see the chromosome unravel to expose the strands of DNA. The DNA separates and an mRNA strand is created by matching complementary nucleotides. Click Translate to watch the mRNA leave the nucleus for the cytoplasm and attach to a ribosome. tRNA molecules bring in amino acids and the amino acids are added in the correct order by matching complementary nucleotides. After translation, inspect the protein to see how the amino acid sequence folded.

An all-new documentary, produced by the Saskatchewan Union of Nurses (SUN), takes viewers into school classrooms, onto after-school sports fields, into urban hospital psychiatric units, and into northern and remote communities to examine the current state of youth mental health in Saskatchewan. Meet grade 7/8 students, their teacher, psychiatric nurses, a school and youth psychologist and a peer mentor who are all working to change the way people view and talk about mental health.

The big mystery, does HEAT damage your hair? I discuss what is safe and not safe when it comes to using heat on your hair.

A young man's passive attitude towards mental health and suicide is changed when he wakes up one morning with a mysterious backpack attached to his body... All of the money this short film makes will be donated to the American Foundation for Suicide Prevention. Donate here: https://afsp.donordrive.com

A Guide for Educators Working with Youth to Support Bystander Intervention in Transphobic and Sexual Violence

A Document Type Definition (DTD) defines the structure and the legal elements and attributes of an XML document.
A DTD can be declared inside an XML document or in an external file.

There are no more famous Canadian Olympic siblings than Maxime, Chloe, and Justine Dufour-Lapointe. The three sisters stormed onto the world freestyle skiing scene more than a decade ago and captivated the hearts of Canadians as they raced to the top of podiums around the world. It was obvious to their fans that the three sisters had a deep and lasting friendship. The world could see that these women were there for each other through good times and difficult times.

This learning resource tells their story, explains what being close friends involves and allows students to think about what it means to be a good sibling or friend.

Download the complete lesson, featuring the following outcomes:
- Think about what it means to be a good of sibling or friend;
- Use good friend vocabulary;
- Understand how to perform good friend actions.

From October 17th to 22nd, we observe Secret Path Week, an annual event dedicated to honoring the legacies of Gord Downie and Chanie Wenjack. These dates mark the anniversaries of Gord Downie’s and Chanie Wenjack’s entering the spirit world. Chanie, only 12 years old, fled from Cecilia Jeffrey Residential School in Kenora, Ontario, and walked along the train tracks for 36 hours before succumbing to exposure on October 22. Although Chanie is no longer with us, his story lives on through Gord Downie’s album Secret Path.

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What's so special about Leonardo da Vinci's Vitruvian Man? With arms outstretched, the man fills the irreconcilable spaces of a circle and a square -- symbolizing the Renaissance-era belief in the mutable nature of humankind. James Earle explains the geometric, religious and philosophical significance of this deceptively simple drawing.

Watch. Dime. Develop. Powder. Pantry. Dirt. That's right, it's time for a dip into the random, because we're talking about the Dada theater that grew out of Symbolism, and the Surrealist theater that followed Dada. You'll learn about Maurice Maeterlinck, Paul Fort, Lugne Poe, Andre Breton, and Alfred Jarry and his infamous play, Ubu Roi. Along the way, you'll pick up lots of interesting facts. For instance, Jarry's favorite cocktail was made up of absinthe, vinegar, and ink. We don't want to boss you around, but do not ever drink anything like that.

Book Boosts: one-minute raves at the end of independent reading time: are easy ways to suggest new titles to students, and they act as a way for students to have something to think about as they read.

The Daily Five is a literacy structure that allows for differentiation in the classroom and provides consistency. • It is an integrated literacy instruction and classroom management system for use in reading and writing workshops. • It is a system of five literacy tasks that teaches students independence.

This site supports the use of Daily 5. The free membership allows you access to the tip of

Students learn how the process of soil solarization is used to pasteurize agricultural fields before planting crops. Soil solarization is a pest control technique in agriculture that uses the sun’s radiation to heat the soil and eliminate unwanted pests that could harm the crops. The approach is compared to other pest control methods such as fumigation and herbicide application, highlighting the respective benefits and drawbacks. In preparation for the associated hands-on activity on soil biosolarization, students learn how changing the variables involved in the solarizing process (such as the tarp material, soil water content and addition of organic matter) impacts the technique’s effectiveness. A PowerPoint® presentation and pre/post-quiz is provided.