Good morning everyone!
We’ve got some challenging math over the next couple of days. Challenging for me to teach, without being able to work beside you, and challenging for many of you because you may not have the tools you need to complete the work well (I know many of you don’t have protractors at home). Still, we’ll get through it. There is a VERY GOOD lesson on the University of Waterloo’s Center for Education in Mathematics and Developing the rules around figuring out whether or not two triangles are congruent. It will allow you to quickly and easily experiment with different kinds of triangles, and the three ways that we can figure out whether or not a triangle is congruent. With the assignment, I’ve posted a video for how to use the Explore and Check Your Understanding interactive parts of the lesson. There are review questions to test your understanding on and today’s quiz is based on that lesson.
Once you have a good handle on the rules for congruent triangles, then you can begin to explore lesson G7-15 Congruency Rules and Similarity. You may not get there until tomorrow. The investigation on page 111 will replicate some of what you do in the CEMC lesson on Congruent Triangles. Because I know that not all of you have the required tools to complete that investigation (i.e. protractors and rules), I’ve actually made videos of myself completing the four parts of that lesson. If you’re trying to do it on your own and you get stuck, you can take a look at my example. If you don’t have the tools, and want an overview, watch the videos.
A lot of the questions on pages 112 to 114 require you to sketch triangles. Many of them will not require you to be exact, but they only make sense if you understand the rules for congruency. If you want to be more precise, but lack a protractor or ruler, you can check out Geogebra and the lessons I have created for using Geogebra. I’ll also have model solutions for some of the questions soon.
YOU DO NOT HAVE TO DO ALL OF LESSON G7-15 (PAGES 111 – 114) TODAY!!! It should take at least two days and may take three. A good goal for today would be to do the online lesson on congruent triangles from the CEMC. If you get a little further ahead – great. If you start to explore how to draw triangles and other polygons in Geogebra – even better. I expect that there will be challenges with this work, so make sure you take advantage of our office hours today to ask questions and get help!
In geography, we’re going to consider the different ways in which people around the world make use of natural resources and how that may change over time and location. There’s some reading for you, and I’ve done a “talk-through” video for each section/page. There’s one discussion question for you.
Many of you are continuing to work on your digital breakouts – that’s great! As you finish, please let me know when you are ready for me to share them with the class. I will share them as soon as I hear from you.
I hope you have a great day and look forward to hearing about your math challenges in our Office Hours.