February 28

# Explaining reflected rays on convex and concave mirrors

Today we experimented with concave and convex mirrors. We read pages 284 and 285 in the textbook and Then followed the procedures shown in the picture below. Students created Ray diagrams similar to the second picture below and then labeled them using them to explain their responses to the questions posed on page 285 in the text. Students are reminded that this is to be handed in in the formal format of a lab is showing and picture one on this post.

February 27

# 360 VR Video of the Cloud Gate in Millennium Park in Chicago – Convex Mirrors

Remember, you need to open this in the youtube app.  Just search for “Chicago Millennium park cloud gate” and choose the 260 vid that is about 50 sec. long.  Then choose the cardboard icon to view in the VR viewer.

February 24

Last weekend my friend Daniel came to Arborg for the weekend.  I’m sure most of you knew him. He moved to Ontario last summer and this is his 2nd visit back. He met me and Kaleb after school on Friday and curled on our curling team as a spare. Then he came to my house for the night, and the next day we went to Kaleb’s. It was a good weekend.

February 21

# Mythbusters – The Ancient Death Ray

Enjoy this clip from Mythbusters as part of our optics unit in Science.

Watch specifically the following sequences regarding Archimedes ancient death ray.

0:00 – 6:45, 15:50 – 21:47, 36:40 – 44:00 (the end)

February 21

# Should we or Shouldn’t We? – Quickwrite for Feb. 21

https://www.theweathernetwork.com/news/articles/how-to-re-freeze-the-arctic-install-millions-of-wind-pumps/79552

February 21

# Intro to Algebra and Equations

Today we are talking about Algebra.  We watched the video below (particularly the second half of it) and observed the assignments below.  We also used the smart board for algebra tiles.  If you would like to try you can download the file below and get the free smartboard software to use with your mouse.

17.02.21 algebra tiles 2 – balancing

Click the links below for the assignments.

17.02.21 gr 7 – algebraic expressions – pg 16 (grade 7’s complete all questions)

17.02.21 gr 8 – solving equations using algebra – p.327 (grade 8’s complete 5-14)