## Term 4

**Number and Algebra:**

-Counting by quarters, halves and thirds

-Representing fractions on a number line

-Place value to at least tens of thousands

-Solving word problems involving multiplication and division

-Decimal numbers to hundredths

-Make connections between fractions and decimals

-Balancing number sentences

**Statistics and Probability:**

-Identifying and describe everyday events involving 'chance'

-Select and trial methods for data collection including survey questions and recording sheets.

-Constructing data displays including: tables, columns graphs and picture graphs

**Measurement and Geometry:**

-Converting between units of time

-Use am and pm to solve time problems

-Mapping: using scales, legends and directions to interpret information

-Comparing and describing 2D shapes

-Creating symmetrical patterns

## Mental Maths in Grade 4

**Below are some strategies we will be using to develop our mental maths skills.**

(Please click the skill to find a link to activities for that skill)

(Please click the skill to find a link to activities for that skill)

**Complements to 100:**Mentally add and subtract a pair of two-digit numbers and articulate the strategy used.

Eg. 62+24=? 56-14=? 38-19=?

**Split Strategy:**Bigger numbers can be split up to make calculations easier.

Eg. To add 35 and 23, I can split 23 into 20+3, and then think 35+20+3 or 30+20+5+3

**Compatible Numbers Strategy:**Knowing which numbers make 10 is very useful and can be extended to bigger numbers.

Eg. To add 34 and 46, I know that 4+6=10, and then I just need to add 10 to 70.

**Doubling:**Doubling and doubling again

Eg. 2x4=8 2x8=16 Mental computation strategies can be extended with different operations and bigger numbers.

Eg. 32+33. Double 32 and add 1.

**Halving:**Halving two digit numbers, up to 50, by halving tens and then the ones and adding them together.

Eg. 32 is half of 30 and half of 2 = 16.

**Multiplication Tables:**Automatic recall of multiplication facts up to 10 x10

Demonstrate the link between different tables:

- 2, 4 and 8
- 5 and 10
- 3 and 6

**Multiplication by 100:**Automatically multiply any number by 100. When we multiply by 100 we move the number two places to the left. Eg. 45x100 = 4500

**Dividing by 10:**When we divide any number by 10, we move the number one place value space to the right.

Eg. 6700÷10 + 670.

**Fact Families:**Recognise and articulate the association between multiplication and division.

Eg. 5x7=35, 35÷7=5

**Renaming Decimals:**Understanding of renaming decimals

Eg. 10 tenths as 1; 10 hundredths as 1 tenth.

**Rounding for Estimation:**Round numbers to estimate answers. Mentally round numbers and apply a process to reach a reasonable estimate

Eg. 18 x 3=?. Round 18 to 20x3=60 The exact answer will be just under 60.

**Fractions:**Count by 1/4s, 1/2s and 1/3s, including mixed numerals.

## Number and AlgebraAll Grade 4 students take part in 4 sessions of Number and Algebra each week.
3 of these sessions focus on areas such as subtraction, addition, multiplication, division, fractions, decimals, money, place value and number patterns. 1 of these sessions focus on problem solving. |
## Statistics and ProbabilityAll Grade 4 students take part in 2 sessions of Statistics and Probability each fortnight.
In Statistics students focus on collecting data, constructing graphs and evaluating the information. In Probability students focus on the chance of events occurring and identify how they are linked. |
## Measurement and GeometryAll Grade 4 students take part in 2 sessions of Measurement and Geometry each fortnight.
In Measurement students focus on measuring length, angle, area, mass, capacity and temperature of shapes and objects. In Geometry students focus on 2D and 3D shapes, angles and reading and interpreting maps. |