Maths

Place Value

This term the children have been re-visiting place value. We have reminded ourselves what each digit represents.

See the source image

Place Value with Base Ten Blocks (MAB / Dienes Blocks) - Maths with Mum

What is place value? - BBC Bitesize

Quick Quizz

What is the value of the 4 in the number 549,632?

1.hundred thousands

2.ten thousands

3.40,000

4.400,000

Comparing whole numbers to 100,000 with three decimal places

Let's look at how to compare and order decimals, using number lines to help us.

Example 1

On the number line below we can see that 2.3 (two and three tenths) is less than 2.8 (two and eight tenths).

2.8 is five tenths more than 2.3.

Comparing and ordering decimals - Maths - Home Learning with BBC Bitesize - BBC Bitesize

Rounding to nearest 10,100,1000,100000

The number line to 10,000 - Maths - Learning with BBC Bitesize - BBC Bitesize

Finding powers of 10,100,1000 more

Find 1, 10, 100 and 1000 more or less - Maths - Learning with BBC Bitesize - BBC Bitesize

Online games your children might enjoy...Hit the Button - Quick fire maths practise for 6-11 year olds (topmarks.co.uk)

Addition and Subtraction

What is column addition? - BBC Bitesize

Discrete Data

In statistics, the children are learning that discrete data can only be represented in tables, bar charts and pictograms.

Pupils in year 5 have developed a new ability to accurately read bar charts, and have found sucess in learning how to determine the data they provide. Below are some of their work;

Maths 1.JPG Maths 2.JPG

Fractions

The class of 5HM will be learning all about fractions this week.

What are fractions? A fraction is a part of a whole, and is named according to the number of parts that the whole is broken up into.

fratcions 1.jpg

Reflection

When light from an object is reflected by a surface, it changes direction. It bounces off the surface at the same angle as it hits it.

Smooth, shiny surfaces such as mirrors and polished metals reflect light well. Dull and dark surfaces such as dark fabrics do not reflect light well.

Exploring symmetry with mirrors and Magna-Tiles from And Next Comes L What is reflection? - BBC Bitesize

Reflection

Reflections are everywhere ... in mirrors, glass, and here in a lake. ... what do you notice ?

Every point is the same distance from the central line !

... and ...

The reflection has the same size as the original image

The central line is called the Mirror Line ...

Can A Mirror Line Be Vertical?

Yes.
Here my dog "Flame" shows a
Vertical Mirror Line (with a bit of photo magic)

In fact Mirror Lines can be in any direction. Imagine turning the photo at the top in different directions ... ... the reflected image is always the same size, it just faces the other way:

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WEIGHT in Grams & Kilograms

These are the most common measurements:

Grams
Kilograms
Tonnes

Grams are the smallest, Tonnes are the biggest.

Let’s take a few minutes and explore how heavy each of these are.

1 kilogram = 1,000 grams

A dictionary has a mass of about one kilogram.

Kilograms are great for measuring things that can be lifted by people (sometimes very strong people are needed of course!).

Kilograms are often written as kg (that is a "k" for "kilo" and a "g" for "gram), so "10 kg" means "10 kilograms".

Scales measure our weight using kilograms. An adult weighs about 70 kg. How much do you weigh?

But when it comes to things that are very heavy, we need to use the tonne. (1000kg = 1 tonne)

First we need to measure or wegh an object & then we can calculate either grams or kilograms.

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Multiplying and dividing decimals

Decimals are used every day, for example, when using money. Knowing how to use decimal points and places when adding, subtracting, dividing and multiplying is an important mathematical skill.

What are fractions? Do we need to learn about them? HMMMM... Lets take a look!

Sometimes 1 fraction has the same value as another even if you use different numbers... let´s take a look:)

Here is another example...

Multiplying Decimals Made Easy! - YouTube

Multiplying decimals by integers - Maths - Learning with BBC Bitesize - BBC Bitesize

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