Multiplication and Arrays

In Maths we have been focussing on times tables and the multiplication process.

Multiplication is a very important part of maths, and having a good “automatic recall” of times tables helps us with many different areas of maths.

During class time we have been spending time practising different times tables and using multiplication in our problem solving.

Here are two fun multiplication websites you might enjoy using to practise your skills.

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We have also been working with arrays to help build our mathematical skills. An array is a set of objects arranged in rows and columns. Each row has the same number of objects, so they represent equal groups.  Arrays can make counting and calculating easier. Thanks to Mr Salsich for this array diagram.

array3

 

Arrays are useful for skip counting and solving multiplication problems.

The array above has 3 rows of 4 blocks. That is 3 groups of 4, or 3 x 4.

We can find out how many blocks there are by skip counting by 4’s:  4, 8, 12 – or by doing repeated addition: 4 + 4 + 4 = 12.

There are 12 blocks. So, 3 x 4 = 12.

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In 4KJ, we have been building our skills to work with bigger arrays. We have been using the two arrays below in our maths lessons this week. The students had to use their mathematical knowledge to calculate how many dots were in the arrays. It was very interesting to see the many different strategies students used during this task.

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Challenge: What strategies would you use to work out how many dots are in this array? We’d love to hear from family members too!

(Tip – click on the array to see an enlarged image).

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What times tables are you confident with?

Which times tables would you like to improve at?

When do you use multiplication in real life?

Where have you seen arrays in everyday life?

Homophones and Homonyms

This week in 4KM and 4KJ we have been learning about some special words – homophones and homonyms.

Homophones are pairs of words that have:

  • the same prounciation
  • different spelling
  • different meanings.

The words pair and pear are homophones. Here are two sentences that show the different spelling and meaning of the words. Mrs Morris is wearing a pair of pink shoes. Miss Jordan ate a pear at recess.

Some other examples of homophones are:

  • there, their and they’re
  • see and sea
  • where and wear

We played the Pairs Word Game to help us learn more homophones

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Homonyms are pairs of words that have:

  • the same spelling
  • different meanings.

*** Homonyms can have the same or different pronounciation.

The word bat is a homonym because it has multiple meanings but is always spelt the same. For example: Mrs Morris saw a bat hanging from the tree. Miss Jordan grabbed a cricket bat for an outdoor game. Mrs Morris used all of her strength to bat the ball to Miss Jordan.

Some other examples of homonyms are:

  • skip
  • wave
  • blue

Try The Homonym Game to discover more homonyms

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Are there any particular homophones or homonyms that confuse you?

Can you write an interesting comment using some homophones or homonyms?