Ms. Bearse's Site

At the end of grade 9 math each student has a 1 on 1 interview where they get to present their learning, and show what they know. We’ve been working all term on reflecting, and becoming more aware of how we learn what we learn. Interviews take place for our class on June 21.

Today we looked at what makes a good interview. We watched a video of several teachers demonstrating some good interviews and some not-so-good ones too.we made a list of all the things we need to demonstrate in a good interview.

And then we practiced our interview skills with our peers.

Many thanks to Ms. Anderson and her class for letting us join in and work together with them today.

We celebrated the end of our EQAO test with a star cake! Congratulations grade 9s, you worked really hard, and so many of you demonstrated your growth, perseverance, and attention to detail over the past days of testing.

This is a photo of my university professor and some math teachers in Saudi Arabia.

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Il y a un jeu de “devinez le prix”.

We’re limited today by not being able to cross the road to measure to the base of the building.

We used a home made clinometer today to figure out how tall he house is across the street. We made our clinometer by taping a string to the middle of a protractor and tied a washer to the end of the string. When the clinometer is horizontal, the string falls vertically and hits the 90 degree mark. When we tip the clinometer up toward the peak of the roof, we measure the angle by looking at where the string falls, and comparing that number with 90.

We walked backward (measuring that distance) and then took another angle measurement to the roof.

We need to know the height up to the measurer’s eyes too.

And then we can calculate the height of the building

We use our understanding of supplementary angles and sine law and the sine function to do it.

We are having cake today and looking at angles.

The cake is in a star shaped pan, and we want to cut it into 20 equal pieces.

There were lots of creative ways

We cut each point in half, along a line of symmetry. We then cut each of the 5 rhombus in half perpendicular to the other diagonal.

We noticed a pentagon in the middle!

Grade 10s used mirrors to explore similar triangles. They needed to apply their knowledge of the law of reflection with a plane mirror which was learned in science class.

We made a triangle with us (height to eyes) and the distance between the mirror and our feet. We had to be sure we could see the edge of the school roof in the mirror without leaning over.

Next we measured the distance between the mirror and the school.

sometimes there were obstacles!

We then calculated the height of the school using similar triangles.

We were hoping to use shadows too, but sadly there hasn’t been sun during math class for the last week!

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