Solving addition problems using Place Value as a Strategy! - Rubana and Elle.

Problem:

Joseph has a CD collection of 188 CD’s. For his birthday he gets another 157 CD’s. How many CD’s does he have in his collection?

Step 1: Read the problem.

Step 2: Put the problem into a equation.

           188+157 = ____

Step 3: Choose a Strategy. Place Value.

Step 4: Solve the equation.

           188 + 100 = 288

            288 + 50 = 338

            338 + 7 = 345

          

Learning Advise - Always keep/remember the big number.

Solving addition problems using rounding and compensating as a Strategy! Jade and Krisana.

Problem:

Joe has $18.88 in his pocket when he goes to Botany. He gets another $8.25 from his dad. How much money does he have to spend at the mall?

Step 1: Read the problem

Step 2: Put it into a maths equation: $18.88 + $8.25 =

Step 2:choose strategy: (Rounding & compensating) 

Step 3:solve the equation:

$18.88 + $8.25 = 

(18.88 + 1.12) + (8.25 - 1.12) =

20 + 7.13 = 27.13

Inquiry - Building a raised garden!

As part of our Inquiry for this term we had an experiment to see what type of soil will be the best for plants to grow in. Three weeks ago room 5 planted 20 beans in a old fish tank. This tank is filled with 4 different types of soils. They are sea sand, river sand, clay, potting mix, pebbles, and cotton wool.

The plants have been growing for a long time now and they have turned out really good. In some soils the beans did not grow at all, and in other soils they have shown amazing growth. It is pretty obvious that river sand and potting mix are best suited to plant beans in. Please come in and have a look at our experiment in class.

We are inquiring to find out how to build a sustainable raised garden. We are researching to find out how to use soil that will drain well, what plants will grow best in such an environment and how to build the raised garden.

At a later stage we will ask parents to come and help to build our raised gardens.

By Elle and Rubana!

Area of a Triangle!

We have learned to work out the Area of a Triangle. It is not as easy as the Area of a Rectangle. You have to measure the base and the height of the triangle. Then divide the base by two to get half of it and multiply that by the height. The formula is Area = Half of the Base x Height. If we can remember that we will always be able to work out the Area of a Triangle.
This poster will help us all remember how to do this. Have a look every time you forget how to work out the Area of a Triangle.

By Louise!

Circumference!

We have learned to work out the circumference of a circle. It is actually very easy. It is important to make sure you know what the radius or diameter is so that you can multiply it with the value of Pi (3.14).

Have a look at the poster we made to help us remember how to do this.

Louise and Samantha!

Time-zone mapping!

Time-zone mapping is a Travel-wise program where students take part in an activity, where we walk for 15 minutes around Wattle Downs to see how long it will take to get to and from school from different areas. The focus is to get enough data to create a time-zone map. A time-zone map is a map that shows how long it takes to walk to school. This map will be shared with our school community so everyone will be able to see how easy it is to travel with sustainable transport.

Armed with our pedometers on our hips and our clipboard by our side we were ready to walk for our first 5 minutes. As our group strutted along the streets and across the road we met our first destination, a house on the corner with a stunning water feature glimmering in the sun. We snapped our first picture spreading our hand out making a five. We then opened the green clipboard and marked down the number of our steps. After that we started our timer again and continued walking.

As we came around the bend to see the back of the golf course it had almost been ten minutes. We carried on strolling until finally the timer beeped ten minutes. We looked to the side and saw a house with tropical palm trees. We took another photo this time with both hands making a ten. Again we restarted our pedometers and began walking again. We went past house after house until we saw the mass of green grass. “We made it to the golf course!” we shouted with excitement. With that same excitement we kept on walking hard to get to our final destination. Our final photo was a photo taken of our group standing around a golfball cemented into the ground. We then turned around and started the 15 minute journey back to school where the other groups were waiting for us. 

As we got back to class we uploaded our pictures onto the computer and tallied up all of our foot steps. Amazingly we got more than we expected. Time-zone mapping was a fun day and a great experience. Hopefully all the families in our school will make use of our brand new time-zone map to see how easy it is to travel around our picturesque neighborhood with sustainable energy.

A huge word of thanks Haley from Travel-wise and the parents that walked with us for making this day possible.

By Jade and Siobhan

Volume!

Louise and I have decided to design a poster for our class to remind us how to work out the volume of a cube or a rectangular prism. We have posted it on the blog to remind everyone how to do it if they forget.

Jade!