Our posters on Factors

Here they are - our posters are finished!

Smiley Faces helping us get the factors of a number.

Today we have been looking at factors of a number again, and we have used multi link cubes and number arrays to help work out the factors of a bigger numbers, like

1 x 32        32 x 1       2 x 16       16 x 2       4 x 8        8x 4     

We started making posters to show the factors of a number - it wasn't quite as quick and easy as we first thought it would be! They will be up on the wall by the end of the week - hopefully tomorrow :-)

How rectangles help us understand our times tables

Today we had a special visitor in our classroom again. She is a maths expert...ask anyone in Room 3! Mrs Butel works with schools as a Maths Advisor. Her job is to show students and teachers the most effective ways to learn maths, based on evidence-based research. Everyone loves working with Mrs Butel...but she makes us think and talk mathematically....and then prove everything we say.

Here we had to show FACTORS of a number...and the shapes were rectangles.   Kahn and Jack are show 4x1 as four rows of one; 2x2 as two rows of two and 1x4 as 1 row of four.

We made factors for numbers one to twelve.


Maddox and Luke had to go for our biggest number, which was a bit trickier. How many factors can you get for 12? They worked out later, when they looked at the photo of their earlier work, that they mixed up the four rows of three with the three rows of four.  The arrows fixed it though, once they proved that they were right to change it. Can you think of two more factors they could put in for  the number 12?

After we lined all the whiteboards up from one to twelve we could see all sorts of interesting patterns. In fact we discovered a pattern that was actually the PRIME numbers. (Another mathematical term we have learned.)

    Maddox is proving his findings to the group. The have to agree or disagree with him, but have to say why.

At the end of the lesson we looked at the factors we wrote on the board for each number, from one to twelve.  Can you see the patterns? What numbers have only one or two factors?

We talked about what we have discovered in the lesson, what we found interesting and surprising and then we wrote sticky notes for others to read.

Next week we will be doing more mulitplicative thinking...showing and proving our ideas using increasingly bigger numbers.

Learning Place Value

Today we made sure everyone can recognise a digit's value in the ones, tens, hundreds and thousands place. For example in the number 3752 the digit 7 has the value of NOT 7 but 700. A trickier example is if a number has zero in it, such as 2803. We know the digit 3 = 3 ones but we have to remember that this 0 means there are no tens. Some of us still need to work on not getting mixed up with a zero in the number!

                                         

Every group worked with Ms Betts throughout the morning to make sure they understood the value of each digit to 9999. There were follow up worksheets and, best of all, other Place Value games to play!                                  

Bingo is a great way to learn PV - everyone liked working with such big numbers. 

I think Charlotte won this game! This activity was to colour the fish...but it wasn't that easy. Each number had a code - different colours for different PV. Jahniq got the hang of it pretty quickly though.

Another activity we played was rolling two dice, adding up the numbers and taking that many ONES. When there were enough ones to make a TEN you swap it for a ten. The aim was to be the first to get to 50. Later on we will make it one hundred, or more, and use 3 or 4 dice at once. 

Lots of addition and counting!

Place Value

Hello everyone,
What a wild and wet week it is turning out to be. A great week to get some extra homework done though! I have downloaded a few YouTube video clips  on PLACE VALUE. The clips help explain what we are doing in class at the moment, give the students someone else to listen to besides me, and also gives some great examples and activities to try out. There are many more on YouTube if you want to investigate - just watch out for pop-ups and unwanted links and adds.

Enjoy learning more about Place Value - and fingers crossed for a better day on Thursday for our class trip!

The below clip is pretty cool, it goes up to 1000 and gives plenty of examples. 

The next 2 videos are a little but harder, but it is what we will soon be learning in Room 3.