Transcript Slide 1

LQ Are some addition methods better than others?
RAG
Key Words: Calculation, Operation, Accuracy,
21-Jul-15
Starter Activity
Look at the sets of questions.
Look for the hardest questions that you are sure you can answer
correctly and answer them.
Then look for the hardest questions that you think you can
answer correctly and answer them.
Copy and complete the sentence by writing either
I am starting this unit of work on level……… or
I am starting this unit of work not yet at level 3.
Number Calculations
Level 3
I can add and subtract
three digit whole
numbers using written
methods.
I can multiply and divide
whole numbers by 10.
Level 4
I can carry out simple
calculations involving negative
numbers.
I can add and subtract three
(or more) digit numbers,
including decimals, using a
written method.
Level 5
I can multiply and
divide whole
numbers and
decimals by 10, 100
and 1000.
I can multiply and
divide any three I can multiply and divide
digit number by any
two digit numbers by 2, 3, I can multiply and divide whole two-digit number.
4 5 or 10.
numbers by 10 or 100.
I can order, add,
When given a number
I can multiply a simple decimal subtract, multiply
sentence, I can create
by a single digit.
and divide negative
related sentences, e.g. If I
numbers.
know that
I can multiply two digit whole
14 x 5 = 70,
numbers by a single digit
I also know that
whole number.
5 x 14 = 70 and
70 ÷ 5 = 14 etc.
I can divide by a single digit
number.
I am starting this unit of work ……………………………………….
Level 6
I can carry out
multiplications and
divisions involving
decimal numbers.
Level 7
I can make and justify
estimates and
approximations of
calculations, rounding
to one significant
figure.
I understand and can
use Standard Form.
Level 3
Level 4
Level 5
321 + 437 =
12 + - 5 =
2.4 x 1000 =
436 – 274 =
23.2 + 4.6 =
234 x 57 =
13 x 10 =
23 x 100 =
-27 ÷ 3 =
28 ÷ 4 =
26 x 7 =
-2 - -5 =
365 ÷ 5 =
221 ÷ 13 =
Level 6
34.5 ÷ 2.3 =
Class Discussion – Words that you may use
when working with ..... Addition
+
Choose a question that you can answer
confidently.
Write your answer on your mini whiteboard.
You must show how you worked it out.
23 + 34
239 + 426
23.5 + 67.9
12.4 + 234.71
Class Methods 23 + 34
Class Methods 239 + 426
Class Methods 23.5 + 67.9
Class Methods 12.4 + 234.71
Longhill School Raise Money for the RNLI
The RNLI have over 4500 volunteer members.
Every volunteer needs to be trained in search and rescue techniques
and life saving skills.
Volunteers have to go on training courses and they need to have
specialist equipment and clothing.
In this lesson you will be using addition techniques to calculate the
cost of some of these items.
Are some addition methods better
than others?
You must give reasons for your
answer.
Tips I would give a friend to I have made a link between
solve this problem are ......... this topic and …
Today I interacted with the
teacher by ……
Today I explained to ……….
how to …………..
To help me move forward,
when I got stuck today, I ….
Today I am still unsure about A barrier to my learning
………………
today was………..
To fill in this gap I intend to
…………
I will try to overcome by …..
Something I have learnt
today about the way I learn
is ………
At home, I need to look at
………………