Wednesday, 11 March 2020

Math
More practice finding the perimeter of rectangles using the relationship between the length and width. We are focusing on using the formula:
Perimeter = (length + width) x 2

Grade 5 we looked at a tricky problem that involved finding the perimeter of a picture frame for a photograph with border. When you place a border around a photograph you are increasing both the length and the width by double the size of the border.

So if we add a 1 cm border around the photograph, the length will increase by 2 cm and the width with increase by 2 cm. If we had a border of 4 cm then both the length and width will increase by 8cm.
The best way to solve these problems is using a chart and the formula above to find the perimeter.

Extra practice grade 4:
http://www.math4.nelson.com/quizzes/math4quizzes/m4ch5l5.htm

Extra practice grade 5:
https://math5.nelson.com/quizzes/math5quizzes/gr5_ch5_les5.htm

Writing
Several students completed their conferencing with a peer and are ready to write a good copy of their story. Your goal is to have your good copy done by Friday.

Science
Today we talked about how energy is transformed. When energy is transformed it changes from one form to another. We looked at the energy transformations in a gasoline powered car.

Some energy transformation examples in a car:
chemical energy (gasoline) ⇨ heat
heat energy (burning gasoline) ⇨ mechanical energy (kinetic) car moving
heat /mechanical ⇨ sound (engine sound)
chemical (battery) ⇨ electrical ⇨ sound (radio)
                                                ⇘ light (headlights)
                                                ⇘ heat (heat)

We also learned a very important law of science.... The Law of Conservation of  Energy:

Image result for law of conservation of energy

On Friday you will have the opportunity to create a catapult to show an energy transformation. You will be given the following materials to construct your catapult:

10 Popsicle sticks (large and small), elastics, 1 clip, 1 clothespin, 1 spoon

Make sure you have your design sketched for FRIDAY. You may bring a small clip from home, but nothing else. No glue is required. You do not need to use all the different materials.

If you do a Google search of "catapult stem challenge" you will see lots of examples.

Reminders:

  • Adding and subtracting decimals problem solving test tomorrow
  • Math test signed
  • Green and white day Friday
  • Catapult sketch completed for Friday

Image result for catapult stem challengeImage result for catapult stem challenge