## Relaxing and building prisms in Math class

Today we had a visit from Emma Jane our adolescent care worker. She talked with us about how to keep calm, how to stretch, and how to breathe.

We learned a little bit about how our thoughts and behaviour are things we can change, and that their changes will influence our feelings.

We then worked on our challenge of the day: building rectangular prisms with a volume of 300cm^3.

We calculated the surface areas of our prisms and will make more (different) prisms with same volume on Friday. We’ll look for patterns in the dimensions and areas of the various prisms which all have the same volume.

## Fractions decimals and percents

In 1L today we worked on ordering decimals, fractions and percents. We had good learning moments when we connected the number in front of the decimal with the whole number in the fraction, and when we examined the number in the denominator and connected it with the size of piece we’d have. 1/2 of a cookie is bigger than 1/10 of a cookie. When the denominator is big, the piece is smaller.

We represented decimals in a concept circle today also. Today our “one” in the center was a 10 block, and then we built the other values accordingly. We are getting more comfortable with these materials and this skill.

## Problem solving day!

Grade 9s started off by collecting data on their multiplication skills. We are multiplying daily, and discussing strategies to multiply more easily. Eventually we will graph our progress.

After that, we looked at the pythagorean theorem, and how to use it to calculate one of the perpendicular sides, when the hypotenuse is known.

This video really helps us visualize the pythagorean theorem, and why sometimes we add the squares together, and why sometimes we subtract.

We then applied our knowledge to solve a rather complex problem.

We are working at the boards so that everyone can see our work, and we can get help from others easily.

we are working on clear communication of our solutions.We are showing our steps, and writing out our formulae clearly. We have shown good skills with BEDMAS too.

Excellent work today grade 9s!

## Place value

Today in 1L we worked on understanding place value, and rounding numbers to the nearest ten or hundred.

We used a concept circle to show our understanding. The center of the circle defines “one”, and then we used that to build larger numbers out of the base 10 blocks. Sometimes the base 10 blocks were given, and we needed to write the number.

## Adding Tug of war

Because of popular requests we did worksheets today with a focus on place value and money. After considerable practice, we learned a new game: tug of war. Each player takes their turn to roll 2 dice and move that number of spaces towards their end of the game board. The winner is the one who gets the game piece to exit the game board on their side.

## Snow day math!

With the few people that braved the weather on our snow day, we worked on money math in 1L.

We are representing values using different combinations of coins. We’re looking at how to write money as a number of dollars, or also a number of cents. These ideas of place value, will be a theme for a while in our class.

## Taco cart

Grade 9s did their first 3 act math task today. For 3 act tasks we watch a video, or see a picture, and then we notice and wonder things about the initial situation. We think about information that we’d want to know, or we make connections to other concepts we’ve learned or questions we’ve solved.

After watching the video and doing some initial thinking, we look at what more information would be needed to solve the problems we want to solve.

Act 2 of the problems start with more released information, in this case, 2 distances, and 2 speeds.

And students set about calculating the missing information, and determining who would get to the taco cart first.

We work standing up because it encourages collaboration. The vertical surface can be seen around the room, so we can all learn strategies from each other.

We consolidate the learning (today’s learning was about the pythagorean theorem, and how to communicate math solutions) in a discussion using student work as the starting point.

The 3rd act is a concluding video/image which shows the answer to the problem, so we all can know the answer.